TY - GEN
T1 - Examination of unified sediment transport and cross shore morphology model
AU - Ontowirjo, Budianto
AU - Mano, Akira
PY - 2009
Y1 - 2009
N2 - A numerical model was developed to simulate the flow and sediment motion in connection with plunging breakers in the surf zone. The Reynolds-Averaged Navier-Stokes (RANS) equations in two spatial dimensions were employed to simulate the flow field together with a k-ε model for the turbulence and the Volume of Fluid (VOF) method for multiple free-surface tracking. An advection-diffusion equation was used for the suspended sediment concentration with a bottom boundary condition following the reference concentration formulation. The Meyer Peter Muller (MPM) formula was used to estimate bed-load transport and Weighted Essentially Non Oscillatory (WENO) scheme was used to calculate the seabed evolution. Incorporating bed-load, suspended load and seabed evolution formulation in the present model, the performance of the new model were examined through the comparison with experimental data. Good agreement between the model and experimental data was obtained for the surface elevation and velocity, turbulent kinetic energy, eddy viscosity, bottom shear stresses, suspended sediment concentration as well as seabed evolution.
AB - A numerical model was developed to simulate the flow and sediment motion in connection with plunging breakers in the surf zone. The Reynolds-Averaged Navier-Stokes (RANS) equations in two spatial dimensions were employed to simulate the flow field together with a k-ε model for the turbulence and the Volume of Fluid (VOF) method for multiple free-surface tracking. An advection-diffusion equation was used for the suspended sediment concentration with a bottom boundary condition following the reference concentration formulation. The Meyer Peter Muller (MPM) formula was used to estimate bed-load transport and Weighted Essentially Non Oscillatory (WENO) scheme was used to calculate the seabed evolution. Incorporating bed-load, suspended load and seabed evolution formulation in the present model, the performance of the new model were examined through the comparison with experimental data. Good agreement between the model and experimental data was obtained for the surface elevation and velocity, turbulent kinetic energy, eddy viscosity, bottom shear stresses, suspended sediment concentration as well as seabed evolution.
KW - Bottom boundary layer
KW - Bottom shear stress
KW - Plunging breaker
KW - Turbulent flow
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U2 - 10.1007/978-3-540-89465-0_222
DO - 10.1007/978-3-540-89465-0_222
M3 - Conference contribution
AN - SCOPUS:84903451104
SN - 9783540894643
T3 - Advances in Water Resources and Hydraulic Engineering - Proceedings of 16th IAHR-APD Congress and 3rd Symposium of IAHR-ISHS
SP - 1272
EP - 1276
BT - Advances in Water Resources and Hydraulic Engineering - Proceedings of 16th IAHR-APD Congress and 3rd Symposium of IAHR-ISHS
PB - Springer Berlin Heidelberg
T2 - 16th Congress of Asia and Pacific Division of International Association of Hydraulic Engineering and Research, APD 2008 and the 3rd IAHR International Symposium on Hydraulic Structures, ISHS 2008
Y2 - 20 October 2008 through 23 October 2008
ER -