Koustuv Debnath

About

Dr. Koustuv Debnath, is working in the area of Experimental and Computational Fluid Mechanics for more than twenty years. He is a researcher in the field of turbulence and vorticity dynamics and recent endeavors include understanding the complex turbulent flow field of wave dominated flows with the understanding of turbulence production, dissipation, energy budget, the eddy structure, turbulent bursting structures and the energy distribution across different scales for boundary layer flows with rough boundary. He has also worked in understanding the turbulence characteristics of free shear flows that include turbulent mixing of jets with boundary interaction, grid generated turbulence, bluff body problems for both only current and wave induced flows. Over the years he has also worked in problems in the domain of two-phase flow, sediment fluid interaction, eco-hydraulics, flow-biota interaction, scouring problems associated with hydraulic structures including bank erosion, characterization of parameters of time-space averaged Navier Stokes equations and magneto-hydrodynamics and many others. Under his guidance 07 students have been conferred doctorate degrees and currently few more students are carrying out doctoral research under his supervision. Further he has guided around 15 MTech Thesis and many projects at the Undergraduate level. In the past he carried out research as a Post Doctoral Research Fellow at the National Institute of Water and Atmospheric Research, New Zealand and as a Visiting Scientist at the Univesity of Aberdeen, Scotland. He is reviewer for many International Journals and has authored several Journal articles in peer reviewed Journals and conference proceeedings. His teaching activities include courses related to Fluid Mechanics, Turbulence, Hydraulics, Aerodynamics and Mechanics. He has received Research Awards from the American Society for Civil Engineers, The Indian Society for Hydraulics, The Institution of Engineers (India), Faculty Research Award from the IIEST alumni association – Washington D. C. Metropolitan area, USA. He also served a two year term as the Head, Department of Aerospace Engineering and Applied Mechanics, IIEST Shibpur in the past.

Academic Qualifications

PhD (2002)

Research Statement

Turbulence, Wave dynamics, Fluid Mechanics, CFD, Experimental Mechanics, Hydraulics, Sediment interactions, Aerodynamics

Latest Publications

2 Jayanta Shounda, Krishnendu Barman & Koustuv Debnath, Effect of wave-current flow on double-averaged turbulence properties over rough bed of hemispherical obstacles, Coastal Engineering Journal, Taylor and Francis, 2023

3 Jayanta Shounda, Krishnendu Barman, Koustuv Debnath, Spatial-averaged turbulence characteristics over staggered pattern roughness, 1-21, Mechanica, Springer Netherlands, 2023

4 Vikas Kumar Das, Santosh Kumar Singh, Bellie Sivakumar, Koustuv Debnath, Testing the complexity and chaotic nature of wave-dominated turbulent flows, 285, 115326, Ocean Engineering, 2023

5 S Hansda, K Debnath, D Pal, Effect of d-type rib roughness on the turbulent structure of side wall boundary layer for wave-current combined flow, Proc IMechE Part M: J Engineering for the Maritime Environment, 2023

6 A. Mondal, S. Chatterjee, A. McDonald Tariang, L. Prince Raj, K. Debnath, Numerical investigation of on-demand fluidic winglet aerodynamic performance and turbulent characterization of a low aspect ratio wing, 10(2), 107-125, Advances in Aircraft and Spacecraft Science, 2023

8 V K Das, K Debnath, B Sivakumar, On the evolution of turbulent characteristics of an eroding cohesive riverbank, 37(4), Stochastic Environmental Research and Risk Assessment, 2023

9 P K Raushan, S K Singh, K Debnath, Turbulent anisotropy and length scale variation over multiple shaped structure, 145(6), 061901, Journal of Offshore Mechanics and Arctic Engineering, ASME, 2023

10 S Sarkar, K Debnath, S K Singh, Near bed flow characteristics over the patch and non-patch zone due to pure wave, 18(9), 1266-1274, Ships and Offshore Structures, Taylor & Francis, 2023

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Research Areas

Turbulence and mixing
Two phase flow, sediment dynamics, transport processes
Aerodynamics
Hydraulics
Fluid Mechanics
Wave dynamics

Teachings

PG Courses

1 Theory of Turbulence

UG Courses

1 Turbulent Flow 2 Hydraulics 3 Low speed Aerodynamics

Publications

1 Jayanta Shounda, Krishnendu Barman, Koustuv Debnath, Double-averaged turbulence statistics of wave current flow over rough bed with staggered arrangement of hemispherical blocks, 291, 116332, Ocean Engineering, Elsevier, 2023 2 Jayanta Shounda, Krishnendu Barman & Koustuv Debnath, Effect of wave-current flow on double-averaged turbulence properties over rough bed of hemispherical obstacles, Coastal Engineering Journal, Taylor and Francis, 2023 3 Jayanta Shounda, Krishnendu Barman, Koustuv Debnath, Spatial-averaged turbulence characteristics over staggered pattern roughness, 1-21, Mechanica, Springer Netherlands, 2023 4 Vikas Kumar Das, Santosh Kumar Singh, Bellie Sivakumar, Koustuv Debnath, Testing the complexity and chaotic nature of wave-dominated turbulent flows, 285, 115326, Ocean Engineering, 2023 5 S Hansda, K Debnath, D Pal, Effect of d-type rib roughness on the turbulent structure of side wall boundary layer for wave-current combined flow, Proc IMechE Part M: J Engineering for the Maritime Environment, 2023

7 M K Bhukta, S K Singh, K Debnath, S Majumder, Modulation of recirculation zone behind a cubical obstruction by the vertically placed turbulent multijets in the form of shower, 50(1), International Journal of Fluid Mechanics Research, 2023 8 V K Das, K Debnath, B Sivakumar, On the evolution of turbulent characteristics of an eroding cohesive riverbank, 37(4), Stochastic Environmental Research and Risk Assessment, 2023 9 P K Raushan, S K Singh, K Debnath, Turbulent anisotropy and length scale variation over multiple shaped structure, 145(6), 061901, Journal of Offshore Mechanics and Arctic Engineering, ASME, 2023 10 S Sarkar, K Debnath, S K Singh, Near bed flow characteristics over the patch and non-patch zone due to pure wave, 18(9), 1266-1274, Ships and Offshore Structures, Taylor & Francis, 2023 11 S K Singh, V Das, S Chaudhuri, K Debnath, Spatial variation of mean flow and turbulence characteristics within channel contraction–an experimental approach, ISH Journal of Hydraulic Engineering, Taylor and Francis, 2022 12 J Shounda, K Barman, S Roy, K Debnath, Spatial-averaged turbulence statistics over regular arrays of hemispherical roughness, 44(3), 1-19, Journal of the Brazilian Society of Mechanical Sciences and Engineering, Springer, 2022 13 S Roy, V K Das, K Barman, B Mondal, K Debnath, Coupled dynamics of river bank undercut depth increment due to random velocity field, 21(3), 493-506, Environmental Engineering & Management Journal (EEMJ), 2022 14 S Hansda, V K Das, K Debnath, Temporal modulation of turbulence structure over progressive erosion boundary under influence of wave current combined flow, 22, 683–713, Environmental Fluid Mechanics, Springer, 2022 15 V K Das, K Debnath, B Sivakumar, Does turbulence show fractal structure within a dynamic undercut of an alluvial riverbank?, 157, 111998, Chaos, Solitons & Fractals, Pergamon, 2022 16 D Dutta, A Dasgupta, P R Lawrence Raj, K Debnath, Drag Reduction and Turbulent Characteristics of a Low Aspect Ratio Wing with Fluidic On-Demand Winglet, 16, 01-16-01-0003, SAE International Journal of Aerospace, 2022 17 S K Singh, K Debnath, Regular wave and turbulent current interaction in free surface flow, 8(2), 153-162, Journal of Ocean Engineering and Marine Energy, Springer, 2022 18 S Sarkar, S Roy, K Barman, V K Das, K Debnath, Turbulence effect on the mechanics of ripple formation under regular wave, 131(2), 1-16, Journal of Earth System Science, Springer, 2022 19 S Chaudhuri, M Pandey, K Debnath, G Oliveto, A comparative study on equilibrium scour volume around circular cylinders in clay–sand mixed cohesive beds, at near threshold velocity of sand–an experimental approach, 22(8), 6777-6791, Water Supply, IWA Publishing, 2022 20 S Chaudhuri, V K Das, K Debnath, S Hansda, Embankment breaching at Indian Sundarban–an assessment on altered primary sediment index properties and fluvial flow parameters, 28(4), 449-460, ISH Journal of Hydraulic Engineering, Taylor & Francis, 2022 21 V K Das, K Debnath, B Sivakumar, On the evolution of turbulent characteristics of an eroding cohesive riverbank, 1-23, Stochastic Environmental Research and Risk Assessment, Springer Berlin Heidelberg, 2022 22 S Sarkar, K Debnath, V K Das, B S Mazumder, Formation and migration of ripple pattern due to pure wave, 28(1), 21-33, ISH Journal of Hydraulic Engineering, Taylor & Francis, 2022 23 S Hansda, K Debnath, Turbulent flow structure over rough side-wall surface under wave-against-current motion, 236(1), 209-227, Proceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment, 2022 24 V K Das, S Chaudhuri, K Barman, S Roy, K Debnath, Pier scours in fine-grained non-cohesive sediment and downstream siltation, an experimental approach, 43(3), 365-382, Physical Geography, Taylor & Francis, 2022 25 S K Singh, J Chowdhury, S Ghosh, P K Raushan, K Debnath, P Kumar, Experimental and numerical investigation of flow characteristics in an open rectangular cavity, 28 (Supp 1), 1--13, ISH Journal of Hydraulic Engineering, Taylor & Francis, 2022 26 S K Singh, P K Raushan, K Debnath, Experimental investigation of turbulence produced by stationary grid, 48(2), 69-82, International Journal of Fluid Mechanics Research, 2021 27 S Sarkar, V K Das, K Barman, K Debnath, Effect of the Wave on Sediment Suspension and the Morphological Pattern of Ripple Formation, 56(2), 207-223, Ocean Science Journal, Springer, 2021 28 V K Das, K Debnath, S Roy, K Barman, S Hansda, B S Mazumder, Effect of turbulent structures on the riverbank erosion due to tidal influence: A case study from the Rupnarayan River, eastern India, 130(2), Journal of Earth System Science, 2021 29 V K Das, S Hansda, K Debnath, S Chaudhuri, Riverbank stabilization based on the modulation of the near bank turbulence scales, 23(10), 15290-15313, Environment, Development and Sustainability, Springer, 2021 30 S K Singh, P K Raushan, P Kumar, K Debnath, Anisotropy of Reynolds stress tensor in combined wave-current flow, 143(5), Journal of Offshore Mechanics and Arctic Engineering, ASME, 2021 31 P K Raushan, S K Singh, K Debnath, Turbulence characteristics of oscillating flow through passive grid, 224, 1-13, Ocean Engineering, 2021 32 V K Das, S Hansda, K Debnath, S Chaudhuri, B S. Mazumder, Assessing the hydraulic performance of bamboo logs in riverbank stabilization: case study of Sundarbans, India, 66(1), Hydrological Sciences Journal, Taylor & Francis, 2021 33 D Chatterjee, BS Mazumder, S Ghosh, K Debnath, Turbulent flow characteristics over forward-facing obstacle, 22(3), Journal of Turbulence, 2021 34 S Roy, K Barman, K Debnath, B S Mazumder, Quantification of turbulent structures in and around the boundary region of a turbulent round jet released into counter-flow, 171, 108758, Measurement, 2021 35 P K Raushan, S K Singh, K Debnath, Turbulence anisotropy with higher-order moments in flow through passive grid under rigid boundary influence, 235(19), 3859-3874, Proc IMechE Part C: J Mechanical Engineering Science, Sage, 2021 36 P K Raushan, S K Singh, K Debnath, Role of rigid boundary on the decay of turbulence generated by passive-grid for free surface flow, 235(7), Proceedings of the Institution of Mechanical Engineers, UK, Part C: Journal of Mechanical Engineering Science, Sage, 2021 37 S K Singh, A Khait, P K Raushan, K Debnath, Localized and distributed energy in wave-current flow, 143(1), 1-22, Journal of Offshore Mechanics and Arctic Engineering, ASME, 2021 38 A Paul, P K Raushan, S K Singh, K Debnath, Organized structure of turbulence in wave current combined flow over rough surface using spatio temporal averaging approach, 42(11), 1-17, Journal of the Brazilian Society of Mechanical Sciences and Engineering, 2020 39 K Barman, P K Raushan, V K Das, S Roy, S Hansda, K Debnath, Turbulent Flow Characteristics in the Eroded Region of the Side-wall Bank, 19(8), Environmental Engineering and Management Journal, 2020

40 P K Raushan, A Paul, S K Singh, K Debnath, Spatially-averaged turbulent flow characteristics over ribbed surface in presence of unidirectional wave over steady current, 100, 102154, Applied Ocean Research, 2020

41 K Barman, S Roy, K Debnath, Characterization of eddy scales over tandem obstacles for surface wave-dominated flow, 118(12), 1922-1929, Current Science, 2020

42 SK Singh, PK Raushan, K Debnath, BS Mazumder, Higher order turbulent flow characteristics of oscillatory flow over a wall-mounted obstacle, 26(1), 84-95, ISH Journal of Hydraulic Engineering, 2020

43 S Roy, K Barman, K Debnath, Turbulence properties in and around the mixing region of the round jet against current, 95(3), Physica Scripta, 2020

44 S Roy, K Barman, VK Das, K Debnath, BS Mazumder, Experimental Investigation of Undercut Mechanisms of River Bank Erosion Based on 3D Turbulence Characteristics, 7(1), Environmental Processes, 2020

45 VK Das, K Barman, S Roy, S Chaudhuri, K Debnath, Near bank turbulence of a river bend with self similar morphological structures, 191, CATENA, 2020

46 VK Das, S Roy, K Barman, S Chaudhuri, K Debnath, Cohesive river bank erosion mechanism under wave-current interaction: A flume study, 129(1), 1-20, Journal of Earth System Science, 2020

47 S K Singh, P K Raushan, K Debnath, B S Mazumder, Higher order turbulent flow characteristics of oscillatory flow over a wall-mounted obstacle, 26(1), 1--12, ISH Journal of Hydraulic Engineering, Taylor & Francis, 2020 48 S Roy, S Ghoshal, K Barman, V K Das, S Ghosh, K Debnath, Modulation of the recirculation region due to magneto hydrodynamic flow, 22 (1), 282--293, Engineering Science and Technology, an International Journal, Elsevier, 2019 49 S K Singh, K Debnath, Discussion of “Boundary layer development over non-uniform sand rough bed channel”, by Anurag Sharma and Bimlesh Kumar (2017), 25 (3), 282--282, ISH Journal of Hydraulic Engineering, Taylor & Francis, 2019 50 K Barman, S Roy, V K Das, K Debnath, Effect of clay fraction on turbulence characteristics of flow near an eroded bank, 571, 87--102, Journal of Hydrology, Elsevier, 2019 51 V K Das, S Roy, Sayahnya, K Barman, S Chaudhuri, K Debnath, Study of clay--sand network structures and its effect on river bank erosion: an experimental approach, 78, 591, Environmental Earth Sciences, Springer, 2019 52 P K Raushan, S K Singh, K Debnath, Grid-generated turbulence in pulsating flow under the rigid boundary influence, 78, 291--305, European Journal of Mechanics-B/Fluids, Elsevier, 2019 53 S Roy, V K Das, K Debnath, Characteristics of intermittent turbulent structures for river bank undercut depth increment, 172, 356-368, Catena, Elsevier, 2019 54 K Barman, K Debnath, B S Mazumder, Turbulence Over Chains of Hemispherical Ribs Under Waves in a Current, 55(1), 55-75, Water Resources Research, American Geophysical Union, Wiley, 2019 55 S Chaudhuri, K Debnath, S Roy, M K Manik, Flume study on contraction scour in clay–sand mixed cohesive bed., 25(1), 79-86, ISH Journal of Hydraulic Engineering, Taylor & Francis, 2019 56 S Roy, K Debnath, Impact of Frontal Round Jet on Vortex-synchronization Control around a Cylinder: A Turbulence Perspective, 46(7), Canadian Journal of Civil Engineering, Canadian Science Publishing, 2019 57 V K Das, S Roy, K Barman, K Debnath, S Chaudhuri, B S Mazumder, Investigations on undercutting processes of cohesive river bank, 252(26), 110-124, Engineering Geology, Elsevier, 2019 58 S K Singh, P K Raushan, K Debnath, B S Mazumder, Effect of surface wave on development of turbulent boundary layer over a train of rib roughness., 141(6), 061101, Journal of Offshore Mechanics and Arctic Engineering, ASME, 2019 59 S K Singh, P K Raushan, K Debnath, Role of multiple flow stages over submerged structure, 181, 59-70, Ocean Engineering, Elsevier, 2019 60 S Roy, K Barman K Debnath, Statistical Analysis of Flow Structures around a Circular Cylinder, 6, 773-787, Environmental Processes, Springer, 2019 61 S Hansda, K Barman, S Roy, K Debnath, Quantification of turbulent eddies in time-space and frequency domain for wave-current combined flow over side-wall roughness, 186, 106080, Ocean Engineering, Elsevier, 2019 62 S K Singh, V K Pal, K Debnath, A numerical investigation of slip flow through circular micro-channel, 45(5), International Journal of Fluid Mechanics Research, Begell House, 2018 63 K Barman, S Roy, K Debnath, Effect of relative spacing on wake turbulence under wave-current flow, 45(6), 489--503, Canadian Journal of Civil Engineering, Canadian Science Publishing, 2018 64 K Barman, K Debnath, Koustuv, B S Mazumder, Turbulence over a pair of submerged hemispheres in presence of surface waves and following current, 140 (3), 031104, Journal of Offshore Mechanics and Arctic Engineering, ASME, 2018

65 S K Singh, K Debnath, B S Mazumder, Reply to the discussion by Li and Li on “Turbulence over cube-mounted rough bed using spatiotemporal averaging approach”, 46, 69--71, Canadian Journal of Civil Engineering, Canadian Science Publishing, 2018

66 S K Singh, P K Raushan, K Debnath, M Mukherjee, B S Mazumder, Turbulence characteristics in boundary layers over a regular array of cubical roughness, 27(4), 404-417, ISH Journal of Hydraulic Engineering, Taylor &Francis, 2018 67 S Roy, K Debnath, B S Mazumder, Turbulence statistics and distribution of turbulent eddies for jet flow and rigid surface interaction., 70 (1), 55-88, Archives of Mechanics, 2018 68 J Li, S S Li, Discussion of “Turbulence over cube-mounted rough bed using spatiotemporal averaging approach”, 46, 67--68, Canadian Journal of Civil Engineering, Canadian Science Publishing, 2018 69 S Chaudhuri, S K Singh, K Debnath, M K Manik, Pier scour within long contraction in cohesive sediment bed, 18, 417--441, Environmental Fluid Mechanics, Springer, 2018 70 P K Raushan, S K Singh, K Debnath, M Mukherjee, B S Mazumder, Distribution of turbulent energy in combined wave current flow, 167, 310--316, Ocean Engineering, Elsevier, 2018 71 S Roy, S S Samantaray, K Debnath, Study of turbulent eddies for wave against current, 150, 176--193, Ocean Engineering, Elsevier, 2018 72 K Barman, S Roy, K Debnath, Wave-current generated turbulence over hemisphere bottom roughness, 202, 1--17, Estuarine, Coastal and Shelf Science, Elsevier, 2018 73 S K Singh, P K Raushan, K Debnath, Combined effect of wave and current in rough bed free surface flow, 160, 20--32, Ocean Engineering, Elsevier, 2018 74 S Roy, K Debnath, B S Mazumder, Distribution of turbulent eddies behind a monopile for vortex lock-on condition due to wave current combined flow, 131, 70--87, Coastal Engineering, Elsevier, 2018 75 S K Singh, P K Raushan, P Kuma, K Debnath, Turbulent characteristics of pulsating flow over hydraulically smooth surface, 68, 10--19, European Journal of Mechanics-B/Fluids, Elsevier, 2018 76 P K Raushan, S K Singh, K Debnath, Grid generated turbulence under the rigid boundary influence, 182, 252--261, Journal of Wind Engineering and Industrial Aerodynamics, Elsevier, 2018 77 K Barman, K Debnath, Turbulent wakes behind bed-mounted hemispheres in co-existing surface wave, 44(2), 169-183, International Journal of Fluid Mechanics Research, Begell House, 2017 78 K Barman, K Debnath, B S Mazumder, Turbulence study over submerged obstacles on waves and currents combined flow, 23(3), 246--257, ISH Journal of Hydraulic Engineering, Taylor & Francis, 2017 79 K Barman, K Debnath, B S Mazumder, Higher-order turbulence statistics of wave--current flow over a submerged hemisphere, 49 (2), 025504, Fluid Dynamics Research, IOP Science, 2017 80 S K Singh, K Debnath, Turbulent flow characteristics in a rectangular channel under the influence of cube-mounted rough bed, 23 (2), 167--176, ISH Journal of Hydraulic Engineering, Taylor & Francis, 2017 81 S Roy, K Debnath, Vortex-Synchronization Control around a Partially Submerged Cylinder due to Wave-Following Current, 143, 06017003, Journal of Waterway, Port, Coastal, and Ocean Engineering, ASCE, 2017 82 S K Singh, P K Raushan, K Debnath, B S Mazumder, Turbulent oscillatory flow along unidirectional current over square ribs, 45, 248--262, Canadian Journal of Civil Engineering, Canadian Science Publishing, 2017 83 S K Singh, K Debnath, Turbulence Characteristics of Flow Under Combined Wave--Current Motion, 139 (2), 021102, Journal of Offshore Mechanics and Arctic Engineering, ASME, 2017 84 S K Singh, K Debnath, B S Mazumder, Turbulence over cube-mounted rough bed using spatiotemporal averaging approach, 44 (7), 504--517, Canadian Journal of Civil Engineering, Canadian Science Publishing, 2017 85 S Roy, K Debnath, B S Mazumder, Distribution of eddy scales for wave current combined flow, 63, 170--183, Applied Ocean Research, Elsevier, 2017 86 S K Singh, K Debnath, B S Mazumder, Changes in turbulent flow structure over rough-bed under combined wave-current motions, 22 (3), 305--313, ISH Journal of Hydraulic Engineering, Taylor& Francis, 2016 87 S K Singh, K Debnath, B S Mazumder, Spatially-averaged turbulent flow over cubical roughness in wave-current co-existing environment, 114, 77--85, Coastal Engineering, Elsevier, 2016 88 S K Singh, K Debnath, Combined effects of wave and current in free surface turbulent flow, 127, 170--189, Ocean Engineering, Elsevier, 2016 89 K Barman, K Debnath, B S Mazumder, Turbulence between two inline hemispherical obstacles under wave--current interactions, 88, 32--52, Advances in Water Resources, Elsevier, 2016 90 S K Singh, K Debnath, B S Mazumder, Turbulence statistics of wave-current flow over a submerged cube, 142, 04015027, Journal of waterway, Port, coastal, and Ocean Engineering, ASCE, 2015 91 K Debnath, S Chaudhuri, M K Manik, Local scour around abutment in clay/sand-mixed cohesive sediment bed, 20 (1), 46--64, ISH Journal of Hydraulic Engineering, Taylor & Francis, 2014 92 I Datta, K Debnath, Volume of fluid model of open channel contraction, 95, 251--259, Journal of The Institution of Engineers (India): Series C, Springer, 2014 93 S Chaudhuri, K Debnath, Observations on initiation of pier scour and equilibrium scour hole profiles in cohesive Sediments, 19 (1), 27--37, ISH Journal of Hydraulic Engineering, Taylor & Francis, 2013 94 K Debnath, S Chaudhuri, Local scour around non-circular piers in clay--sand mixed cohesive sediment beds, 151, 1--14, Engineering Geology, Elsevier, 2012 95 K Debnath, M K Manik, B S Mazumder, Turbulence statistics of flow over scoured cohesive sediment bed around circular cylinder, 41, 18--28, Advances in Water Resources, Elsevier, 2012

96 Debnath, K., and Chaudhury, S., Field Measurement and Formulations of Cohesive Sediment Erosion: A Review, 91, 7-15, Journal of the Institution of Engineers (Environmental Engineering Section), 2011

97 K Debnath, S Chaudhuri, Closure to “Bridge Pier Scour in Clay-Sand Mixed Sediments at Near-Threshold Velocity for Sand” by Koustuv Debnath and Susanta Chaudhuri, 137 (10), 1306--1307, Journal of Hydraulic Engineering, ASCE, 2011 98 K Debnath, S Chaudhuri, Effect of suspended sediment concentration on local scour around cylinder for clay--sand mixed sediment beds, 117, 236--245, Engineering Geology, Elsevier, 2011 99 K Debnath, S Chaudhuri, Cohesive sediment erosion threshold: A review, 16 (1), 36--56, ISH Journal of Hydraulic Engineering, Taylor & Francis, 2010 100 K Debnath, S Chaudhuri, Bridge pier scour in clay-sand mixed sediments at near-threshold velocity for sand, 136(9), 597--609, Journal of Hydraulic Engineering, ASCE, 2010 101 K Debnath, S Chaudhuri, Laboratory experiments on local scour around cylinder for clay and clay--sand mixed beds, 111(1-4), 51--61, Engineering Geology, Elsevier, 2010 102 K Debnath, A K Bhattacharya, B Mahato, A Chakrabarti, Volume of Fluid Model for Numerical Simulation of Vegetated Flows, 14 (2), 72--87, ISH Journal of Hydraulic Engineering, Taylor & Francis, 2008 103 V Nikora, S Larned, N Nikora, K Debnath, G Cooper, M Reid, Hydraulic resistance due to aquatic vegetation in small streams: field study, 134(9), 1326--1332, Journal of Hydraulic Engineering, ASCE, 2008 104 K Debnath, V Nikora, A Elliott, Stream bank erosion: In situ flume tests, 133, 256--264, Journal of Irrigation and Drainage Engineering, ASCE, 2007 105 K Debnath, V Nikora, J Aberle, B Westrich, M Muste, Erosion of cohesive sediments: Resuspension, bed load, and erosion patterns from field experiments, 133(5), 508--520, Journal of Hydraulic Engineering, ASCE, 2007 106 A K Bhattacharya, K Debnath, Discussion of “Flow Interaction of Meandering River with Floodplains,” by Kanhu Charan Patra and Srijib K. Kar, 128, 245--245, Journal of Hydraulic Engineering, ASCE, 2002

107 Dey, S and Debnath, K, Sediment pick-up on stream-wise sloping beds (vol 127, pg 39, 2001), 127, 263--263, Journal of Irrigation and Drainage Engineering, ASCE, 2001

108 S Dey, K Debnath, Sediment pickup on streamwise sloping beds, 127(1), 39--43, Journal of Irrigation and Drainage Engineering, ASCE, 2001 109 S Dey, K Debnath, Influence of streamwise bed slope on sediment threshold under stream flow, 126, 255--263, Journal of Irrigation and Drainage Engineering, ASCE, 2000 110 S Dey, H K Dey Sarkar, K Debnath, Sediment threshold under stream flow on horizontal and sloping beds, 125 (5), 545--553, Journal of Engineering Mechanics, ASCE, 1999

1 V K Das, S Chaudhuri, K Debnath, Erosion Mechanisms and Modification of Morphological Pattern of Meandering River Bank - A Case Study at the Middle Flow Regime of the Hooghly River near Nawadip, West Bengal, India, Hydro 2019 International Hydraulics, Water Resources and Coastal EngineeringAt: Osmania University, Hyderabad., 2019

2 S Chaudhuri, V K Das, K Debnath, Scouring and Downstream Bed Deformation due to Obstruction of Stream Flow – an Experimental Study with Fine-grained Non-cohesive Sediment Bed, Session 10A, 1808, 1808, ‘34th IAS Meeting of Sedimentology - International Conference on Sedimentology to face societal challenges on risk, resources and record of the past, at Department of Earth Sciences of Sapienza Univer, 2019

3 V K Das, S Chaudhuri, K Debnath, Effect of caly-sand mixture on river bank morphology and erosion, Session 7L-1826, 1108, 34th IAS (International Association of Sedimentologists) Meeting of Sedimentology, an International Conference on Sedimentology to face societal challenges on risk, resources and record of the past, D, 2019

4 S Chaudhuri, K Debnath, V K Das, Comparison of scour and stream bed modification around circular pier for different stream bed characteristics -an experimental approach, Paper 46, HYDRO 2019 - - 24thInternational Conference on Hydraulics, Water Resources and River Engineering, At: University College of Engineering, Osmania University, Hyderabad, India, 2019

5 V. K. Das, S. Chaudhuri, K. Debnath, Study on Erosion and Undercut of Cohesive River Bank-An Experimental Approach, 36, Proceedings of 23st International Conference on Hydraulics, Water Resources and Coastal Engineering (HYDRO-2018)NIT, Patna, India., 2018

6 S. K. Singh, P. K. Raushan, K. Debnath, Turbulent flow over a train of K-type roughness., 34, Proceedings of 23st International Conference on Hydraulics, Water Resources and Coastal Engineering (HYDRO-2018)NIT, Patna, India., 2018

7 P. K. Raushan,K., Debnath, S. K. Singh, Turbulence flow statistics downstream of grids with the various mesh size, 6, Proceedings of 23st International Conference on Hydraulics, Water Resources and Coastal Engineering (HYDRO-2018), NIT, Patna, India., 2018

8 K. Barman, K. Debnath, Open Channel turbulent flow in the presence of surface wave, 73, International Conference of Theoretical, Applied, Computational and Experimental Mechanics (ICTACEM), IIT Kharagpur, 2017

9 K. Barman, K. Debnath, Wave-current combined interaction on the current flow, International Conference on Ship and Offshore Technology (ICSOT), IIT Kharagpur, 2017

10 K. Barman, K. Debnath, Effect of wave-current interaction over hemispherical obstacle, International conference on Fluid Mechanics and Fluid Power (FMFP), Amrita University, Kerala, 2017

11 S. Roy, K. Pushpak, K. Debnath, Characterization of flow structures for a surface interacting plane turbulent jet, 72, International Conference of Theoretical, Applied, Computational and Experimental Mechanics (ICTACEM), IIT Kharagpur., 2017

12 P. K. Raushan, S. K., Singh, K. Barman, K. Debnath, Combined wave-current turbulent flow over a train of rib roughness, International Conference on Conference on Ship and Offshore Technology (ICSOT), IIT Kharagpur, 2017

13 S. Roy, K. Debnath, Flow characteristics of a surface interacting turbulent jet, International conference on Fluid Mechanics and Fluid Power (FMFP), Amrita University, 2017

14 S. Chaudhuri, K. Debnath, Sediment removal processes from an evolving scour hole around bridge piers in clay-sand mixed cohesive sediment, 124, In book of Abstracts:– International Conference on Developments in Geosciences in the Past Decade – Emerging Trends for the Future and Impact on Society, IIT KGP., 2016

15 S. Chaudhuri, K. Debnath M. K. Manik, Study on contraction scours in clay – sand mixed cohesive bed, 72, International conference on Hydraulics, water Resources and River engineering (HYDRO), CW & PRS, Pune, 8-10 Dec. 2016, 2016

16 J. Chowdhury, S. Ghosh, K. Debnath, Effect of Reynolds number on turbulent flow over open cavity, 63, Proceedings of the 6th International conference on Fluid Mechanics and Fluid Power (FMFP) MNNIT, Allahabad, U.P. India., 2016

17 P. K. Raushan, K. Debnath, K. and S. K. Singh, Development of turbulent boundary layer over a train of rib roughness in the presence of surface wave, 72, Proceedings of the 6th International conference on Fluid Mechanics and Fluid Power (FMFP) MNNIT, Allahabad, U.P. India., 2016

18 S. S. Samantaray, S. Roy, and K. Debnath, Study of turbulent eddies in open channel flow with wave against current, 32, Proceedings of 21st International conference on Hydraulics, water Resources and River engineering (HYDRO), CW & PRS, 2016

19 S. Roy, K. Debnath, Vortex synchronization control around partially submerged cylinder due to wave-current combined flow., 31, Proceedings of 21st International conference on Hydraulics, water Resources and River engineering (HYDRO), CW & PRS., 2016

20 S. Chaudhuri, K. Debnath, M. K. Manik, Flume study on contraction scours in clay – sand mixed cohesive bed, 29, HYDRO-16 INTERNATIONAL, 21st International Conference on Hydraulics, Water Resources and River Engineering, CW & PRS., 2016

21 S. K. Singh, K. Debnath, Turbulent characteristics of flow over large regular bottom roughness, 26, Proceedings of 21st International Conference on Hydraulics, Water Resources and Coastal Engineering (HYDRO) Central Water & Power Research Station, Pune, India., 2016

22 S. K. Singh, K. Debnath, Turbulent flow dynamic in wave-current co-existing environment, 32, Proceedings of 3rd international Conference on Applications of Fluid Dynamics (ICAFD) ), IIT- ISM Dhanbad, Jharkhand, India in Association with Fluid Mechanics Group, University of Botswana, Botswana., 2016

23 K. Barman, K. Debnath, Second order turbulence statistics for wave-current flow, 47, Proceedings of 3rd International Conference on Applications of Fluid Dynamics (ICAFD), IIT- ISM Dhanbad, Jharkhand, India in Association with Fluid Mechanics Group, University of Botswana, Botswana, 2016

24 K. Barman, K. Debnath, Wave-current turbulent flow over submerged tandem hemispheres, 27, International conference on Hydraulics, water Resources and River engineering (HYDRO), CW & PRS, Pune., 2016

25 S Chaudhuri, K Debnath, Sediment Removal Processes from an Evolving Scour Hole around Bridge Piers in Clay-Sand Mixed Cohesive Sediment, 124, Annual General Meeting of the Geological Society of India, 2016

26 K. Barman, K. Debnath, Turbulence flow characteristics over hemispherical obstacles in the presence of surface wave, 76, Proceedings of 20th International conference on Hydraulics, water Resources and River engineering (HYDRO), IIT Roorkee, India., 2015

27 S. K. Singh, K. Debnath, Turbulence over rough-bed using double averaged Navier-Stokes equations, 61, Proceedings of 20th International conference on Hydraulics, water Resources and River engineering (HYDRO), IIT Roorkee, India., 2015

28 S. Chaudhuri, K. Debnath, M. K. Manik, Flume study on bridge pier scour embedded within long contraction for clay-sand mixed cohesive sediment bed, 89, Proceedings of 20th International conference on Hydraulics, water Resources and River engineering (HYDRO), IIT Roorkee, India., 2015

29 K. Barman, K. Debnath, Effect of Submergence around hemispherical obstacle, International conference on Fluid Mechanics and Fluid Power (FMFP), IIT Kanpur, 2014

30 S. K. Singh, K. Debnath, Laboratory investigation of turbulent flow structure over a submerged cubic obstacle, 14-B-681/23, International conference on Fluid Mechanics and Fluid Power (FMFP), IIT Kanpur, 2014

31 K. Barman, K. Debnath, Turbulence characteristics in the wake region of single and double in-line hemispherical obstacles in the presence of surface waves, International Conference of Theoretical, Applied, Computational and Experimental Mechanics (ICTACEM), IIT Kharagpur., 2014

32 S. K. Singh, K. Debnath, Structure of turbulence flow dynamics over a submerged cube, 29-31, International Conference of Theoretical, Applied, Computational and Experimental Mechanics (ICTACEM), IIT Kharagpur., 2014

33 S. Chaudhuri, K. Debnath, Observations on scouring processes within evolving scour hole around cylinders embedded in clay-sand mixed cohesive sediments., 258-264, In book of Abstracts: – Indo-U.S International bilateral workshop on ‘Sedimentation, Erosion, flooding, and Ecological Health of Rivers’ Indian Statistical Institute, Kolkata., 2013

34 K. Barman, K. Debnath, Turbulence characteristics in the wake region of single and double in-line hemispherical obstacles., 50, In book of Abstracts: International Conference on Indian Society of Theoretical and Applied Mechanics (ISTAM-2013), 18-21 Dec., 2013, IIEST (Formerly BESU), Shibpur, India., 2013

35 S. K. Singh, K. Debnath, Study of Turbulence Flow Characteristics over Surface Mounted Cubic Obstacles in a Tandem arrangement, 49, In book of Abstracts: International Conference on Indian Society of Theoretical and Applied Mechanics (ISTAM-2013), 18-21 Dec., 2013, IIEST (Formerly BESU), Shibpur, India., 2013

36 S. Chaudhuri, K. Debnath, K. and M. K. Manik, Experimental stydy on local scour around vertical wall abutment in clay sand mixed cohesive sediment, 51, In book of Abstracts: – 58th Congress of the Indian Society of Theoretical and Applied Mechanics (ISTAM), IIEST, Shibpur., 2013

37 M. K. Manik, K. Debnath, Scour within long contractions within channels in cohesive sediment bed, 50, In book of Abstracts: International Conference on Indian Society of Theoretical and Applied Mechanics (ISTAM-2013), IIEST (Formerly BESU), Shibpur, India., 2013

38 I. Dutta , K. Debnath, Flow Within Channel Contractions, 29, In book of Abstracts: International Conference on Indian Society of Theoretical and Applied Mechanics (ISTAM-2013), 18-21 Dec., 2013, IIEST (Formerly BESU), Shibpur, India., 2013

39 S. Roy, K. Debnath, Turbulent statistics of combined wave current flow over a plane bed., 51, In book of Abstracts: International Conference on Indian Society of Theoretical and Applied Mechanics (ISTAM-2013, IIEST (Formerly BESU), Shibpur, India., 2013

40 K. Debnath, V. Nikora, On threshold of cohesive sediment erosion, Indo-US Bilateral Workshop on "Sedimentation, Erosion, Flooding, and Ecological Health of Rivers". ISI, Kolkata, 1-3 November 2010, 2010

41 S.Chaudhury, K. Debnath, Observations on Scouring Processes within Evolving Scour Hole around Cylinders Embedded in Clay-Sand Mixed Cohesive Sediments, Indo-US Bilateral Workshop on "Sedimentation, Erosion, Flooding, and Ecological Health of Rivers", ISI, Kolkara 1-3 November 2010, 2010

42 K. Debnath, S. Chaudhury, B. P. Mukhopadhyay, Volume of Scour around Circular Cylinder in Clay-Sand Mixed Beds, 7-14, In book of Abstracts, HYDRO-2009, 2009, Indian Society for Hydraulics, 2010

43 D Plew, K Debnath, J Aberle, V Nikora, G Cooper, In situ flume for studying cohesive and non-cohesive sediment erosion, 32, 70, Proceedings of the Congress-International Association for Hydraulic Research, 2007

44 V. I. Nikora, S.Learned, K. Debnath, G. Cooper, M.Reid, N.Nikora, Effects of aquatic and bank vegetation on hydraulic performance of small urban streams, Proceedings of River Flow 2006, 6-8 September 2006, Lisbon, Portugal., 2006

45 K. Debnath, V. I. Nikora, A new instrument for measurement of cohesive sediment erosion, re-suspension and bed load from field experiments, Proceedings of International Conference on Applications of Fluid Mechanics in Industry and Environment, August 28-31, 2006, ISI, Kolkata, India, 2006

46 V Nikora, S Larned, K Debnath, G Cooper, M Reid, N Nikora, Effects of aquatic and bank-side vegetation on hydraulic performance of small streams., 639--646, River Flow 2006: Proceedings of the International Conference on Fluvial Hydraulics, Lisbon, Portugal, 6-8 September 2006, 2006

47 K. Debnath, V. I.Nikora, C. Grace, Cohesive sediment erosion in Canturbury streams, 43-44, In: Book of Abstracts of the New Zealand Hydrological Society Symposium “Hydrology and the Community”, Queenstown, New Zealand, 2004

48 C. Grace, K. Debnath, V. I. Nikora, J. Bulleid, S. De Li ma, J. Aberle, D. Humphreys, New NIWA in-situ sediment flume, 43-44, Book of Abstracts of the New Zealand Hydrological Society Symposium “Hydrology and the Community”, Taupo, New Zealand, 2003

49 A. K. Bhattacharya, K. Debnath, A review of turbulence and its modelling, In book of Abstracts: BSME ASME International Conference on Thermal Engineering, Dhaka, Bangladesh, 2002

50 Dey, S and Debnath, K, An overview on sediment threshold., 8, ACE 2002: International Conference on Advances in Civil Engineering, 2002

51 S. Dey, H. K. Dey Sarkar, K. Debnath, Sediment threshold on stream-wise bed slopes, 255-262, Proc. 26th National Conference on Fluid Mech. and Fluid Power, IIT, Kharagpur, 1999

1 Krishnendu Barman, Sayahnya Roy, Susanta Chaudhuri, Koustuv Debnath, Recirculation Region Control Behind a Partially Submerged Cylinder Due to Wave Against Current, River, Sediment and Hydrological Extremes: Causes, Impacts and Management, Springer Nature SingaporeBook Chapter, 349-363, , 2023

2 P K Raushan, S K Singh, K Debnath, Turbulence Flow Statistics Downstream of Grids with Various Mesh Sizes, River Hydraulics, Water Science and Technology Library book series (WSTL,volume 110). Springer110, 59-69, , 2022 3 S K Singh, P K Raushan, K Debnath, Turbulent Flow Over a Train of K-Type Roughness, River Hydraulics, Water Science and Technology Library book series (WSTL,volume 110), Springer,110, 207-215, , 2022 4 V K Das, K Debnath, S Chaudhuri, Chapter 7-Stabilization of Manmade Embankments at Indian Sundarbans Estuary Through Turbulence Control at Flow-Sediment Interface: Field Survey and Flume Experimentation, River Dynamics and Flood Hazards, Springer, Singapore127-147, , 2022

5 Manas Kumar Bhukta, Gautam Kumar Bose and Koustuv Debanth, Chapter 8 - Study of Turbulent Plane Circular Jet for Modulation of Recirculation Zone Behind a Cubical Obstruction (Book - Advanced Applications in Manufacturing Enginneering), Woodhead Publishing (Availabe in Science Direct), 2019

Patents

#	Patents	Year

Member

Responsibilities

In-charge, Fluid Mechanics and Hydraulics laboratory

2007 - 2017

Secretary, Departmental Academic Committee, Department of Aerospace Engineering and Applied Mechanics

2013 - 2016

Head, Department of Aerospace Engineering and Applied Mechanics

15-11-2016 to 14-11-2018

Projects

River Bank Erosion: influence of tidal flow and vegetative cover, Sponsored
Ongoing
Turbulence in Rough Bed free surface flow using double averaged Navier Stokes equations, Sponsored
Completed
Guideline development for bridge pier scours in cohesive bedded rivers, Sponsored
Completed
Calibration of Flow-meter, Consultancy
Completed

Awards

Recipient of 2010 American Society of Civil Engineers (ASCE Journal of Hydraulic Engineering) Best Technical Note Award, EWRI, ASCE, USA - Invited to receive the award at Rhode Islands, USA, Year: 2010
Recipient of 2011 Institution of Engineers (India), Environmental Engineering Section, Best Journal paper of the Year Award., Year: 2011
Recipient of “ISH Jal Vigyan Puraskar 2015” The Indian Society for Hydraulics, CWPRS, Pune, Year: 2015
Young Faculty Research Award, YFRA 2017 (Research award), IIEST Shibpur alumni association, Washington DC, US, Year: 2017