Multimode Morphodynamic Model for Sediment-Laden Flows and Geomorphic Impacts
Publication: Journal of Hydraulic Engineering
Volume 141, Issue 6
Abstract
Sediment-laden flows are a complex solid-fluid interaction process. This study presents a multimode morphodynamic model system combined with shallow water theory and a nonequilibrium assumption for sediment transport. The model system aims to simulate the morphological change caused by sediment-laden flows with various sediment transport modes. It involves three modules: a hydrodynamic module, a sediment transport module, and a morphological evolution module. The hydrodynamic model is governed by modified shallow water equations considering the interaction effects of flow and sediment. A flexible sediment transport model is presented that incorporates a weight coefficient. The model can adaptively choose an appropriate transport mode according to local, real-time flow conditions. Bedload, suspended load, and total mixed sediment load are all involved. The model is solved by a second-order Godunov-type finite-volume method that is robust and accurate. Validation is demonstrated through a series of test cases. The results indicate that the model can attain good agreement with measured data, thereby demonstrating the capabilities of the multimode morphodynamic model system in predicting sediment-laden flows and resulting morphological change.
Get full access to this article
View all available purchase options and get full access to this article.
References
Armanini, A., and Di Silvio, G. (1988). “A one-dimensional model for the transport of a sediment mixture in non-equilibrium conditions.” J. Hydraul. Res., 26(3), 275–292.
Bakhtyar, R., Yeganeh-Bakhtiary, A., Barry, D. A., and Ghaheri, A. (2009). “Two-phase hydrodynamic and sediment transport modeling of wave-generated sheet flow.” Adv. Water Resour., 32(8), 1267–1283.
Benkhaldoun, F., Sahmim, S., and Seaïd, M. (2010). “A two-dimensional finite volume morphodynamic model on unstructured triangular grids.” Int. J. Numer. Methods Fluids, 63(11), 1296–1327.
Cao, Z., Pender, G., Wallis, S., and Carling, P. (2004). “Computational dam-break hydraulics over erodible sediment bed.” J. Hydraul. Eng., 130(7), 689–703.
Cao, Z. X., Li, Y. T., and Yue, Z. Y. (2007). “Multiple time scales of alluvial rivers carrying suspended sediment and their implications for mathematical modeling.” Adv. Water Resour., 30(4), 715–729.
Capart, H. (2000). “Dam-break induced geomorphic flows and the transition from solid- to fluid-like behaviour across evolving interfaces.” Ph.D. thesis, Univ. catholique de Louvain, Belgium.
Capart, H., and Young, D. L. (1998). “Formation of a jump by the dam-break wave over a granular bed.” J. Fluid Mech., 372, 165–187.
Carrivick, J. L., Manville, V., Graettinger, A., and Cronin, S. J. (2010). “Coupled fluid dynamics-sediment transport modelling of a Crater Lake break-out lahar: Mt. Ruapehu, New Zealand.” J. Hydrol., 388(3–4), 399–413.
Chinnarasri, C., Tingsanchali, T., Weesakul, S., and Wongwises, S. (2003). “Flow patterns and damage of dike overtopping.” Int. J. Sediment Res., 18(4), 301–309.
Diaz, M. J. C., Fernandez-Nieto, E. D., and Ferreiro, A. M. (2008). “Sediment transport models in shallow water equations and numerical approach by high order finite volume methods.” Comput. Fluids, 37(3), 299–316.
Dong, P., and Zhang, K. (1999). “Two-phase flow modelling of sediment motions in oscillatory sheet flow.” Coastal Eng., 36(2), 87–109.
Fraccarollo, L., and Capart, H. (2002). “Riemann wave description of erosional dam-break flows.” J. Fluid Mech., 461, 183–228.
Greimann, B., Lai, Y., and Huang, J. C. (2008). “Two-dimensional total sediment load model equations.” J. Hydr. Eng., 1142–1146.
Guan, M. F., Wright, N. G., and Sleigh, P. A. (2013a). “A robust 2D shallow water model for solving flow over complex topography using homogenous flux method.” Int. J. Numer. Methods Fluids, 73(3), 225–249.
Guan, M. F., Wright, N. G., and Sleigh, P. A. (2013b). “Modelling and understanding multiple roles of sediment transport in floods.” Proc., 35th IAHR World Congress, Tsinghua University Press, Beijing.
Guan, M. F., Wright, N. G., and Sleigh, P. A. (2014). “2D process based morphodynamic model for flooding by non-cohesive dyke breach.” J. Hydr. Eng., 04014022.
Jenkins, J. T., and Hanes, D. M. (1998). “Collisional sheet flows of sediment driven by a turbulent fluid.” J. Fluid Mech., 370, 29–52.
Lamb, M. P., Dietrich, W. E., and Venditti, J. G. (2008). “Is the critical Shields stress for incipient sediment motion dependent on channel-bed slope?” J. Geophys. Res. Earth Surf., 113(F2), F02008.
Lee, S.-H., and Wright, N. G. (2010). “Simple and efficient solution of the shallow water equations with source terms.” Int. J. Numer. Methods Fluids, 63(3), 313–340.
Li, M., Pan, S., and O’Connor, B. A. (2008). “A two-phase numerical model for sediment transport prediction under oscillatory sheet flows.” Coastal Eng., 55(12), 1159–1173.
Li, S., and Duffy, C. J. (2011). “Fully coupled approach to modeling shallow water flow, sediment transport, and bed evolution in rivers.” Water Resour. Res., 47, W03508.
Meyer-Peter, E., and Müller, R. (1948). “Formulas for bed load transport.” 2nd Meeting of the Int. Association for Hydraulic Structures Research, IAHR, Stockholm, Sweden, 39–64.
Murillo, J., and Garcia-Navarro, P. (2010). “An Exner-based coupled model for two-dimensional transient flow over erodible bed.” J. Comput. Phys., 229(23), 8704–8732.
Parker, C., Clifford, N. J., and Thorne, C. R. (2011). “Understanding the influence of slope on the threshold of coarse grain motion: Revisiting critical stream power.” Geomorphology, 126(1–2), 51–65.
Phillips, B. C., and Sutherland, A. J. (1989). “Spatial lag effects in bed-load sediment transport.” J. Hydraul. Res., 27(1), 115–133.
Pugh, F. J., and Wilson, K. C. (1999). “Velocity and concentration distributions in sheet flow above plane beds.” J. Hydr. Eng., 117–125.
Seal, R., Paola, C., Parker, G., Southard, J. B., and Wilcock, P. R. (1997). “Experiments on downstream fining of gravel. I: Narrow-channel runs.” J. Hydr. Eng., 874–884.
Shakibaeinia, A., and Yee-Chung, J. (2011). “A mesh-free particle model for simulation of mobile-bed dam break.” Adv. Water Resour., 34(6), 794–807.
Simpson, G., and Castelltort, S. (2006). “Coupled model of surface water flow, sediment transport and morphological evolution.” Comput. Geosci., 32(10), 1600–1614.
Singh, V. P. (1996). Dam breach modeling technology, Kluwer Academic, Dordrecht, Netherlands.
Smart, G., and Jäggi, M. (1983). “Sediment transport on steep slopes.” Communication 64, Institute of Hydraulics, Hydrology and Glaciology, ETH Zurich, Zurich.
Soulsby, R. (1997). Dynamics of marine sands: A manual for practical applications, ThomasTelford, London.
Spasojevic, M., and Holly, M. (2008). “Two- and three-dimensional numerical simulation of mobile-bed hydrodynamics and sedimentation.” Sedimentation engineering: Processes, measurements, modeling, and practice, H. G. Marcelo, ed., ASCE, Reston, VA, 683–761.
Spinewine, B. (2005). “Two-layer flow behaviour and the effects of granular dilatancy in dam-break induced sheet-flow.” Ph.D. thesis, Univerisité catholique de Louvain, Belgium.
Spinewine, B., and Zech, Y. (2007). “Small-scale laboratory dam-break waves on movable beds.” J. Hydraul. Res., 45, 73–86.
Sumer, B. M., Kozakiewicz, A., Fredsoe, J., and Deigaard, R. (1996). “Velocity and concentration profiles in sheet-flow layer of movable bed.” J. Hydr. Eng., 549–558.
van Rijn, L. C. (1984a). “Sediment transport. I: Bed load transport.” J. Hydr. Eng., 1431–1456.
van Rijn, L. C. (1984b). “Sediment transport. II: Suspended load transport.” J. Hydr. Eng., 1613–1641.
Wu, W., Marsooli, R., and He, Z. (2012). “Depth-averaged two-dimensional model of unsteady flow and sediment transport due to noncohesive embankment break/breaching.” J. Hydr Eng., 503–516.
Wu, W. M. (2004). “Depth-averaged two-dimensional numerical modeling of unsteady flow and nonuniform sediment transport in open channels.” J. Hydr. Eng., 1013–1024.
Wu, W. M., and Wang, S. S. Y. (2008). “One-dimensional explicit finite-volume model for sediment transport with transient flows over movable beds.” J. Hydraul. Res., 46(1), 87–98.
Zech, Y., Soares-Frazao, S., Spinewine, B., and Grelle, N. L. (2008). “Dam-break induced sediment movement: Experimental approaches and numerical modelling.” J. Hydraul. Res., 46(2), 176–190.
Information & Authors
Information
Published In
Copyright
© 2015 American Society of Civil Engineers.
History
Received: Aug 28, 2013
Accepted: Dec 9, 2014
Published online: Jan 30, 2015
Published in print: Jun 1, 2015
Discussion open until: Jun 30, 2015
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.