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Numerical modeling of turbulent flow interactions with vegetation in channels with fixed beds

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Abstract

In this work, numerical studies for turbulent flow structure, such as three-dimensional velocity, turbulent kinetic energy, turbulent intensity, eddy viscosity and turbulence eddy dissipation and secondary current in rigid emergent vegetated channel are performed using the ANSYS FLUENT software. Navier–Stokes equations and Realisable k-ε turbulence model are used to execute the sensitivity analyses on turbulence model and mesh resolution. The result displays that the streamwise velocity is higher in the non-vegetated region and gap region of two vegetation stem than near the vegetation area. The most negligible streamwise velocity and substantial negative transverse velocity are achieved directly behind of vegetation stem. The higher turbulent kinetic energy is observed directly behind the vegetation than the vegetation front. An increase in turbulent kinetic energy and turbulent intensity is observed as the flow moves in vegetated regions. The presence of vegetation stems along the stream significantly alters the secondary currents. The numerical model is validated and has a good agreement with experimental study. The statistical analyses such as coefficient of determination, mean absolute percentage error and Nash–Sutcliffe model efficiency coefficient also demonstrate a good fit between numerical and observed values. This work provided valuable insights into the complex interaction between turbulent flow and vegetation in river ecosystems. Understanding these dynamics is essential for effective ecosystem management and environmental conservation efforts.

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References

  • Afzal MS, Holmedal LE, Myrhaug D (2015) Three-dimensional streaming in the seabed boundary layer beneath propagating waves with an angle of attack on the current. J Geophys Res: Oceans 120(6):4370–4391

    Article  Google Scholar 

  • Afzal MS, Bihs H, Kumar L (2020) Computational fluid dynamics modeling of abutment scour under steady current using the level set method. Int J Sedim Res 35(4):355–364

    Article  Google Scholar 

  • Amina, Tanaka N (2022) Numerical Investigation of 3D Flow Properties around Finite Emergent Vegetation by Using the Two-Phase Volume of Fluid (VOF) Modeling Technique. Fluids 7:175. https://doi.org/10.3390/fluids7050175

    Article  CAS  Google Scholar 

  • Anjum N, Ghani U, Pasha GA, Rashid MU, Latif A, Rana MZY (2018) Reynolds stress modeling of flow characteristics in a vegetated rectangular open channel. Arab J Sci Eng 43:5551–5558

    Article  Google Scholar 

  • Bai Y, Han L, Zhao Y, Huang L, Wang Q, Sun G (2024) Numerical simulation of velocity distribution and pollution transport in a two-stage channel with vegetation on a floodplain. J Hydrol 630:130788

    Article  Google Scholar 

  • Barman J, Kumar B (2023) Flow in multi-layered vegetated compound channels with different bank slopes. Phys Fluids 35(3):036601

    Article  CAS  Google Scholar 

  • Chatelain M, Proust S (2021) Open-channel flows through emergent rigid vegetation: Effects of bed roughness and shallowness on the flow structure and surface waves. Phys Fluids 33(10):106602

    Article  CAS  Google Scholar 

  • Choi SU, Kang H (2006) Numerical investigations of mean flow and turbulence structures of partly-vegetated open-channel flows using the Reynolds stress model. J Hydraul Res 44(2):203–217

    Article  Google Scholar 

  • Chow VT (1959) Open-channel Hydraulics. McGram-Hill Book Company, New York

    Google Scholar 

  • D’Ippolito A, Lauria A, Alfonsi G, Calomino F (2019) Investigation of flow resistance exerted by rigid emergent vegetation in open channel. Acta Geophys 67:971–986

    Article  Google Scholar 

  • Dehrashid FA, Heidari M, Rahimi H, Khoshkonesh A, Yuan S, Tang X,...& Wang X (2023) CFD modeling the flow dynamics in an open channel with double-layered vegetation. Model Earth Syst Environ, 9(1), 543–555.

  • Devi TB, Sharma A, Kumar B (2017) Studies on emergent flow over vegetative channel bed with downward seepage. Hydrol Sci J 62(3):408–420

    Google Scholar 

  • Dutta D, Afzal MS, Alhaddad S (2023) 3D CFD study of scour in combined wave–current flows around rectangular piles with varying aspect ratios. Water 15(8):1541

    Article  Google Scholar 

  • Fischer-Antze T, Stoesser T, Bates P, Olsen NRB (2001) 3D numerical modelling of open-channel flow with submerged vegetation. J Hydraul Res 39(3):303–310

    Article  Google Scholar 

  • Fu J, He G, Huang L, Dey S, Fang H (2023) Swaying motions of submerged flexible vegetation. J Fluid Mech 971:A14

    Article  Google Scholar 

  • Gautam S, Dutta D, Bihs H, Afzal MS (2021) Three-dimensional Computational Fluid Dynamics modelling of scour around a single pile due to combined action of the waves and current using Level-Set method. Coast Eng 170:104002

    Article  Google Scholar 

  • Ghani U, Anjum N, Pasha GA, Ahmad M (2019) Numerical investigation of the flow characteristics through discontinuous and layered vegetation patches of finite width in an open channel. Environ Fluid Mech 19(6):1469–1495

    Article  Google Scholar 

  • He S, Liu H, Shen L (2022) Simulation-based study of turbulent aquatic canopy flows with flexible stems. J Fluid Mech 947:A33

    Article  CAS  Google Scholar 

  • Hinze JO (1975) Turbulence. McGraw-Hill Publishing Co., New York

    Google Scholar 

  • Ibrahim Z, Ismail Z, Harun S, Shiono K, Zuki NM, Makhtar MR,...& Jamal MH (2016) Flood hydraulics due to emergent vegetation along a riparian zone in meandering channels. J Teknol, 78(9–4): 99–107

  • Ikeda S, Kanazawa M (1996) Three-dimensional organized vortices above flexible water plants. J Hydraul Eng 122(11):634–640

    Article  Google Scholar 

  • Kamel B, Ilhem K, Ali F, Abdelbaki D (2014) 3D simulation of velocity profile of turbulent flow in open channel with complex geometry. Phys Procedia 55:119–128

    Article  Google Scholar 

  • Kasiteropoulou D, Liakopoulos A, Michalolias N, Κeramaris Ε (2017) Numerical modelling and analysis of turbulent flow in an open channel with submerged vegetation. Environ Proc 4:47–61

    Article  Google Scholar 

  • Keramaris E, Kasiteropoulou D, Liakopoulos A, Michalolias N, Pechlivanidis G (2017) A study of flow in open channels with vegetation: experiments and numerical models. Spec Top Rev Porous Media: An Int J 8(2):109–120. https://doi.org/10.1615/SpecialTopicsRevPorousMedia.2017019692

  • Kumar P, Sharma A (2022) Experimental investigation of 3D flow properties around emergent rigid vegetation. Ecohydrology 15(8):e2474. https://doi.org/10.1002/eco.2474

    Article  Google Scholar 

  • Kumar P, Ojha A, Sharma A (2023) Reynolds stress anisotropy with higher-order turbulence in flow through rigid emergent vegetation: an experimental Study. J Hydro-Environ Res. https://doi.org/10.1016/j.jher.2023.10.001

    Article  Google Scholar 

  • Lai YG, Wu K (2019) A three-dimensional flow and sediment transport model for free-surface open channel flows on unstructured flexible meshes. Fluids 4(1):18

    Article  Google Scholar 

  • Launder BE, Spalding DB (1972) Lectures in mathematical models of turbulence. Academic Press, London

  • Launder BE, Spalding DB (1974) The numerical computation of turbulent flows. Comput Meth Appl Mech Eng 3(2):269–289. https://doi.org/10.1016/0045-7825(74)90029-2

  • Li RM, Shen HW (1973) Effect of tall vegetation on flow and sediment. J Hydraul Div Am Soc Civ Eng 99(5):793–81

    Google Scholar 

  • Li Y, Anim DO, Wang Y, Tang C, Du W, Yu Z, Acharya K (2014) An open-channel flume study of flow characteristics through a combined layer of submerged and emerged flexible vegetation. Ecohydrology 7(2):633–647

    Article  Google Scholar 

  • Li D, Liu M, Huai W (2022) Modeling transverse momentum exchange in partially vegetated flow. Phys Fluids 34(2):025124

    Article  CAS  Google Scholar 

  • Liu M, Huai W, Ji B, Han P (2021) Numerical study on the drag characteristics of rigid submerged vegetation patches. Phys Fluids 33(8):085123

    Article  CAS  Google Scholar 

  • Liu D, Diplas P, Fairbanks JD, & Hodges CC (2008) An experimental study of flow through rigid vegetation. J Geophys Res: Earth Surf, 113(F4)

  • López F, García M (1998) Open-channel flow through simulated vegetation: Suspended sediment transport modeling. Water Resour Res 34(9):2341–2352

    Article  Google Scholar 

  • Maji S, Pal D, Hanmaiahgari PR, Gupta UP (2017) Hydrodynamics and turbulence in emergent and sparsely vegetated open channel flow. Environ Fluid Mech 17:853–877

    Article  CAS  Google Scholar 

  • Modalavalasa S, Chembolu V, Dutta S, Kulkarni V (2023) Laboratory investigation on flow structure and turbulent characteristics in low sinuous compound channels with vegetated floodplains. J Hydrol 618:129178

    Article  Google Scholar 

  • Nadaoka K, Yagi H (1998) Shallow-water turbulence modeling and horizontal large-eddy computation of river flow. J Hydraul Eng 124(5):493–500

    Article  Google Scholar 

  • Nandi KK, Pradhan C, Dutta S, Khatua KK (2022) How dynamic is the Brahmaputra? Understanding the process–form–vegetation interactions for hierarchies of energy dissipation. Ecohydrology 15(3):e2416

    Article  Google Scholar 

  • Neary VS, Constantinescu SG, Bennett SJ, Diplas P (2012) Effects of vegetation on turbulence, sediment transport, and stream morphology. J Hydraul Eng 138(9):765–776

    Article  Google Scholar 

  • Nepf HM, Ghisalberti M (2008) Flow and transport in channels with submerged vegetation. Acta Geophys 56(3):753–777

    Article  Google Scholar 

  • Nepf HM, Vivoni ER (2000) Flow structure in depth-limited, vegetated flow. J Geophys Res: Oceans 105(C12):28547–28557

    Article  Google Scholar 

  • Nezu I, Sanjou M (2008) Turburence structure and coherent motion in vegetated canopy open-channel flows. J Hydro-Environ Res 2(2):62–90. https://doi.org/10.1016/j.jher.2008.05.003

    Article  Google Scholar 

  • Nicosia A, Palmeri V, Ferro V (2024) Flow resistance law in channels with emergent rigid vegetation. Ecohydrology e2646. https://doi.org/10.1002/eco.2646

  • Ojha A, Kumar A, Kumar P, Sharma A (2023) Nature of Bursting Events over a Rigid Bed with Emergent Vegetation. River, Sediment and Hydrological Extremes: Causes, Impacts and Management. Singapore, Springer Nature Singapore, pp 339–348

    Chapter  Google Scholar 

  • Pasha GA, Tanaka N (2017) Undular hydraulic jump formation and energy loss in a flow through emergent vegetation of varying thickness and density. Ocean Eng 141:308–325

    Article  Google Scholar 

  • Pradhan B, Pradhan S, Khatua KK (2024) Experimental investigation of three-dimensional flow dynamics in a laboratory-scale meandering channel under subcritical flow condition. Ocean Eng 302:117557

    Article  Google Scholar 

  • Rahimi HR, Tang X, Singh P (2020) Experimental and numerical study on impact of double layer vegetation in open channel flows. J Hydrol Eng 25(2):04019064

    Article  Google Scholar 

  • Rao PL, Prasad BSS, Sharma A, Khatua KK (2022) Experimental and numerical analysis of velocity distribution in a compound meandering channel with double layered rigid vegetated flood plains. Flow Meas Instrum 83:102111

    Article  Google Scholar 

  • Ren JT, Wu XF, Zhang T (2021) A 3-D numerical simulation of the characteristics of open channel flows with submerged rigid vegetation. J Hydrodyn 33(4):833–843

    Article  Google Scholar 

  • Rezaei B, Safarzade A (2016) Numerical modeling of flow field in prismatic compound channels with different floodplain widths. J Appl Res Water Wastewater 3(2):260–270

    Google Scholar 

  • Ricardo AM, Franca MJ, Ferreira RM (2016) Turbulent flows within random arrays of rigid and emergent cylinders with varying distribution. J Hydraul Eng 142(9):04016022

    Article  Google Scholar 

  • Sharil S, Mohtar WHMW, Razali SFM (2016) Characteristics of flow through rigid, emergent and sparse vegetation. J Teknol 78(10)

  • Sharma A, Kumar B (2017) Structure of turbulence over non uniform sand bed channel with downward seepage. Eur J Mech-B/fluids 65:530–551

    Article  Google Scholar 

  • Shih TH, Liou WW, Shabbir A, Yang Z (1995) Zhu, A new k-ε eddy viscosity model for high Reynolds number turbulent flows. Comput. Fluid 24(3):1995227–238

    Article  Google Scholar 

  • Sohrabi S, Afzalimehr H, & Singh VP (2022) Estimation of drag coefficient of emergent and submerged vegetation patches with various densities and arrangements in open channel flow. ISH J Hydraulic Eng, 1–11.

  • Souliotis D, Prinos P (2011) Effect of a vegetation patch on turbulent channel flow. J Hydraul Res 49(2):157–167

    Article  Google Scholar 

  • Tanaka N (2022) Numerical Investigation of 3D Flow Properties around Finite Emergent Vegetation by Using the Two-Phase Volume of Fluid (VOF) Modelling Technique. Fluids 7(5):175

    Article  Google Scholar 

  • Tang X, Singh PK, Guan Y, Li, M (2023) Flow through layered vegetation in open channel flows: effect on velocity and discharge distribution. Environ Fluid Mech, 1–19

  • Tariq H, Ghani U, Anjum N, Pasha GA (2022) 3D numerical modeling of flow characteristics in an open channel having in-line circular vegetation patches with varying density under submerged and emergent flow conditions. J Hydrol Hydromech 70(1):128–144

    Article  Google Scholar 

  • Versteeg HK, Malalasekera W (2007) An introduction to computational fluid dynamics: the finite volume method. Pearson Education

  • Wang Z, Lu J, Yuan Y, Huang Y, Feng J, Li R (2019) Experimental study on the effects of vegetation on the dissipation of supersaturated total dissolved gas in flowing water. Int J Environ Res Public Health 16(13):2256

    Article  CAS  Google Scholar 

  • Wang J, Liu X, Min F, Dai J, Jiang X (2021) Turbulence structure and longitudinal velocity distribution of open channel flows with reedy emergent vegetation. Ecohydrology 15(1):e2352. https://doi.org/10.1002/ECO.2352

    Article  Google Scholar 

  • Watanabe T (2004) Large-eddy simulation of coherent turbulence structures associated with scalar ramps over plant canopies. Bound-Layer Meteorol 112:307–341

    Article  Google Scholar 

  • Wilson CAME, Yagci O, Rauch HP, Stoesser T (2006) Application of the drag force approach to model the flow-interaction of natural vegetation. Int J River Basin Manag 4(2):137–146

    Article  Google Scholar 

  • Wu YJ, Jing HF, Li CG, Song YT (2020) Flow characteristics in open channels with aquatic rigid vegetation. J Hydrodyn 32(6):1100–1108

    Article  Google Scholar 

  • Xiang K, Yang Z, Wu S, Gao W, Li D, Li Q (2020) Flow hydrodynamics of the mixing layer in consecutive vegetated groyne fields. Phys Fluids 32(6):065110

    Article  CAS  Google Scholar 

  • Yagci O, Tschiesche U, Kabdasli MS (2010) The role of different forms of natural riparian vegetation on turbulence and kinetic energy characteristics [J]. Advances in Water Resources 33(5):601–614

    Article  Google Scholar 

  • Yan C, Nepf HM, Huang WX, Cui GX (2017) Large eddy simulation of flow and scalar transport in a vegetated channel. Environ Fluid Mech 17:497–519

    Article  CAS  Google Scholar 

  • Yang K, Cao S, Knight DW (2007) Flow patterns in compound channels with vegetated floodplains. J Hydraul Eng 133(2):148–159

    Article  Google Scholar 

  • Yu LH, Zhan JM, Li YS (2013) Numerical investigation of drag force on flow through circular array of cylinders. J Hydrodyn 25(3):330–338

    Article  Google Scholar 

  • Zhao F, Huai W (2016) Hydrodynamics of discontinuous rigid submerged vegetation patches in open-channel flow. J Hydro-Environ Res 12:148–160

    Article  Google Scholar 

  • Zong L, Nepf H (2011) Vortex development behind a finite porous obstruction in a channel. J Fluid Mech 691:368–391

    Article  Google Scholar 

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  1. Department of Civil Engineering, National Institute of Technology Rourkela, Odisha, 769008, India

    Pritam Kumar, Abhishek Kumar & Anurag Sharma

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  1. Pritam Kumar
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  2. Abhishek Kumar
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Correspondence to Anurag Sharma.

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Kumar, P., Kumar, A. & Sharma, A. Numerical modeling of turbulent flow interactions with vegetation in channels with fixed beds. Model. Earth Syst. Environ. (2024). https://doi.org/10.1007/s40808-024-02025-z

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