TY - GEN
T1 - On the study of wave-current-structure interactions in a numerical wave tank
AU - Li, Tingqiu
AU - Troch, Peter
AU - De Rouck, Julien
PY - 2006/12/1
Y1 - 2006/12/1
N2 - With a wave-current generator designed in a numerical wave tank (NWT), we extended our highly efficient Navier-Stokes solver (Li et al., 2004a;b) for modelling of wave-current-structure interactions. This solver (named LVOF) is constructed by a novel VOF finite volume approach that incorporates surface tension, coupled with a dynamic subgrid-scale (SGS) turbulence model. The numerical generator located in the inflow boundary oscillates vertically the combined motions of waves and currents starting from its static stage, while the outgoing waves downstream are dissipated by a breaking-type absorber placed in the tank extremity (or a numerical damping zone). Test cases concern a combination of wave propagation, current, shoaling, reflection and breaking, when overtopping of waves over a seadike and seawall, including the study in the channel wave motions following and opposing a current. By using LVOF, our results demonstrate that most of typical features in the wave-induced motions can be captured in waves superimposed on the following (or opposing) currents. By comparison, the velocity profile and the wave train are in good agreement with measurements available.
AB - With a wave-current generator designed in a numerical wave tank (NWT), we extended our highly efficient Navier-Stokes solver (Li et al., 2004a;b) for modelling of wave-current-structure interactions. This solver (named LVOF) is constructed by a novel VOF finite volume approach that incorporates surface tension, coupled with a dynamic subgrid-scale (SGS) turbulence model. The numerical generator located in the inflow boundary oscillates vertically the combined motions of waves and currents starting from its static stage, while the outgoing waves downstream are dissipated by a breaking-type absorber placed in the tank extremity (or a numerical damping zone). Test cases concern a combination of wave propagation, current, shoaling, reflection and breaking, when overtopping of waves over a seadike and seawall, including the study in the channel wave motions following and opposing a current. By using LVOF, our results demonstrate that most of typical features in the wave-induced motions can be captured in waves superimposed on the following (or opposing) currents. By comparison, the velocity profile and the wave train are in good agreement with measurements available.
KW - A NWT
KW - Breaking waves
KW - Interaction of waves with currents over a cut-cell
KW - Wave generator as inflow conditions
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M3 - Conference contribution
AN - SCOPUS:36749076407
SN - 1880653664
SN - 9781880653661
T3 - Proceedings of the International Offshore and Polar Engineering Conference
SP - 356
EP - 362
BT - Proceedings of The Sixteenth 2006 International Offshore and Polar Engineering Conference, ISOPE 2006
T2 - 16th 2006 International Offshore and Polar Engineering Conference, ISOPE 2006
Y2 - 28 May 2006 through 2 June 2006
ER -