TY - JOUR
T1 - 3-D finite-volume model of dam-break flow over uneven beds based on VOF method
AU - Marsooli, Reza
AU - Wu, Weiming
PY - 2014/8
Y1 - 2014/8
N2 - A 3-D numerical model has been developed to simulate dam-break flow over neven beds in irregular domains. The model solves the Reynolds-Averaged Navier-Stokes equations (RANS) using a finite-volume method based on collocated mesh that fits the solid boundaries such as bed and walls. The velocity and pressure coupling is achieved using the PISO algorithm and the Rhie and Chow's momentum interpolation. The Smagorinsky eddy viscosity model is used for turbulence closure of the RANS equations. The movement of water surface is captured using the Volume-of-Fluid (VOF) method with the Compressive Interface Capturing Scheme for Arbitrary Meshes (CICSAM) to solve the VOF advection equation. The accuracy and robustness of the model has been tested using several small- and large-scale laboratory experiments of dam-break flow. Some comparisons between the calculated results by the present model and those calculated by depth-averaged 2-D and 3-D models in the literature are presented.
AB - A 3-D numerical model has been developed to simulate dam-break flow over neven beds in irregular domains. The model solves the Reynolds-Averaged Navier-Stokes equations (RANS) using a finite-volume method based on collocated mesh that fits the solid boundaries such as bed and walls. The velocity and pressure coupling is achieved using the PISO algorithm and the Rhie and Chow's momentum interpolation. The Smagorinsky eddy viscosity model is used for turbulence closure of the RANS equations. The movement of water surface is captured using the Volume-of-Fluid (VOF) method with the Compressive Interface Capturing Scheme for Arbitrary Meshes (CICSAM) to solve the VOF advection equation. The accuracy and robustness of the model has been tested using several small- and large-scale laboratory experiments of dam-break flow. Some comparisons between the calculated results by the present model and those calculated by depth-averaged 2-D and 3-D models in the literature are presented.
KW - Dam-break flows
KW - Explicit CICSAM scheme
KW - Finite volume
KW - Navier-Stokes equations
KW - Uneven bed
KW - Volume-of-Fluid
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U2 - 10.1016/j.advwatres.2014.04.020
DO - 10.1016/j.advwatres.2014.04.020
M3 - Article
AN - SCOPUS:84901375198
SN - 0309-1708
VL - 70
SP - 104
EP - 117
JO - Advances in Water Resources
JF - Advances in Water Resources
ER -