Evaluation of Hydrodynamic and Sediment Transport equations and Parameter Sensitivity Analysis Using the SRH_2D Model

Saeed JUDI SANI, Edris MERUFINIA, Shoja NOURI
1.652 1.043

Abstract


Abstract. One-dimensional (1D) flow models have been routinely used in practical hydraulic applications. Example models include HEC_RAS (Brunner, 2006), MIKE11 (DHI, 2002), CCHE1D (Wu and Vieira, 2002), and SRH_1D (Huang and Greimann, 2007). These 1D models will remain useful, particularly for applications with a long river reach (more than 50 km) or over a long time period (over a year). Their limitation, however, are well known and there are situations where multi-dimensional modeling is needed. For most river flows, water depth is shallow relative to width and vertical acceleration is negligible in comparison with gravity. So the two-dimensional (2D) depth-averaged model provides the next level of modeling accuracy for many practical open channel flows. Indeed, time has been ripe that 2D models may be routinely used for river projects on a personal computer. A range of 2D models have been developed and applied to a wide range of problems since the work of chow and Ben-Zvi (1973). The ability of a 2D model to solve open channel flows with complex geometries has always been a thrust for improvement as it is relevant to practical applications. In this report hydrodynamic and Sediment Transport Equations and Sensitivity Parameter Using the  Model are introduced.


Keywords


Depth-Averaged Model, Hybrid Mesh, Unstructured Mesh, Model

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References


Yong G. Lai., Two-dimensional depth-averaged flow modeling with an unstructured hybrid mesh, Hydraulic Engineer, Sedimentation and River Hydraulics Group, Technical Service Center, Bureau of Reclamation, Denver, CO 80225

Edom Mesesse Moges.,Evaluation of Sediment Transport Equation and Parameter Sensitivity Analysis Using the SRH-2D, 2010

Yong G. Lai., “ 2D Flow Modeling with SRH_2D”., Hydraulic Engineer, Sedimentation and River Hydraulics Group, Technical Service Center

Yang C. T., Sediment Transport Theory and practice,1996

Vanoni, American society of civil engineers, sedimentation engineering,1975

Tolossa H. G.,Comparison of 2D hydrodynamic models in river reaches of ecological importance: Hydro-AS-2D and SRH_2D.2008

Van Rijn L. C., Sediment transport: Part 1 bed load transport, 1987

Lai Y. G., Theory and user manual for SRH_2D version-2,2008

Duan, j,G and Chen, Li(2003) Review of Sediment Transport Models, Technical Report, Desert Research Institute.71 pages.