TY - JOUR
T1 - A SPH numerical wave basin for modeling wave-structure interactions
AU - Wen, Hongjie
AU - Ren, Bing
AU - Dong, Ping
AU - Wang, Yongxue
N1 - Funding: National Natural Science Foundation of China (51179030); Innovative Research Group National Natural Science Foundation of China (51221961)
PY - 2016/9
Y1 - 2016/9
N2 - Based on a parallel SPH-LES model, a three dimensional numerical wave basin is developed to study wave interaction with coastal structures. The OpenMP programming technology combined with an existing MPI program contained in the parallel version of SPHysics code has been implemented to enable the simulation of hundred millions of particles running on a computer cluster. As part of the numerical basin development work an active absorbing wave maker and a sponge layer are introduced. The dynamic boundary conditions are also corrected to reduce the spurious effects. Wave generation and propagation in the numerical wave basin is first tested and confirmed with analytical results. Then, the model is applied to simulate wave interactions with a vertical breakwater and a vertical cylinder in order to further assess the capability of the numerical wave basin. The predicted free surface elevation near the vertical breakwater is compared with the experimental data while the horizontal forces and overturning moments acting on the vertical cylinder are verified with the analytical results. In all these cases the model results show excellent agreement with the validation data.
AB - Based on a parallel SPH-LES model, a three dimensional numerical wave basin is developed to study wave interaction with coastal structures. The OpenMP programming technology combined with an existing MPI program contained in the parallel version of SPHysics code has been implemented to enable the simulation of hundred millions of particles running on a computer cluster. As part of the numerical basin development work an active absorbing wave maker and a sponge layer are introduced. The dynamic boundary conditions are also corrected to reduce the spurious effects. Wave generation and propagation in the numerical wave basin is first tested and confirmed with analytical results. Then, the model is applied to simulate wave interactions with a vertical breakwater and a vertical cylinder in order to further assess the capability of the numerical wave basin. The predicted free surface elevation near the vertical breakwater is compared with the experimental data while the horizontal forces and overturning moments acting on the vertical cylinder are verified with the analytical results. In all these cases the model results show excellent agreement with the validation data.
KW - Data decomposition
KW - Domain decomposition
KW - Numerical wave basin
KW - SPH-LES
KW - Wave-structure interaction
UR - http://www.scopus.com/inward/record.url?scp=84978800206&partnerID=8YFLogxK
U2 - 10.1016/j.apor.2016.06.012
DO - 10.1016/j.apor.2016.06.012
M3 - Article
AN - SCOPUS:84978800206
SN - 0141-1187
VL - 59
SP - 366
EP - 377
JO - Applied Ocean Research
JF - Applied Ocean Research
ER -