期刊
COASTAL ENGINEERING JOURNAL
卷 59, 期 1, 页码 -出版社
TAYLOR & FRANCIS LTD
DOI: 10.1142/S0578563417500103
关键词
ISPH; first-order derivative; kernel correction; wave impact; solitary wave; dambreak flow
资金
- National Natural Science Foundation of China [51009034, 51279041, 51479087, 51639004, 51579054, 51409060]
The smoothed particle hydrodynamics (SPH) method is a meshless numerical modeling technique. It has been applied in many different research fields in coastal engineering. Due to the drawback of its kernel approximation, however, the accuracy of SPH simulation results still needs to be improved in the prediction of violent wave impact. This paper compares several different forms of correction on the first-order derivative of ISPH formulation aiming to find one optimum kernel approximation. Based on four benchmark case analysis, we explored different kernel corrections and compared their accuracies. Furthermore, we applied them to one solitary wave and two dam-break flows with violent wave impact. The recommended method has been found to achieve much more promising results as compared with experimental data and other numerical approaches.
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