INCOMPRESSIBLE SMOOTHED PARTICLE HYDRODYNAMICS (ISPH) MODELLING OF BREAKWATER OVERTOPPING

Proceedings of the International Conference on Coastal Engineering

Peter K Stansby¹  Alex Skillen¹  Benedict D Rogers¹  Mael Morellec² 

[1] University of Manchester;l’Ecole Normale Supérieure de Cachan

关键词: overtopping;    incompressible smoothed particle hydrodynamics;    SPH;    ISPH;    breakwater;   

DOI  :  10.9753/icce.v34.waves.6

学科分类：建筑学

来源: Coastal Engineering Research Council

【 摘 要 】

This paper describes an investigation into using incompressible smoothed particle hydrodynamics (ISPH) to simulate the overtopping of a coastal structure such as a breakwater. The paper presents the ISPH formulation that employs the multiple boundary tangent method and the latest developments such as particle shifting that produce noise-free pressure fields. The numerical model is compared with experimental overtopping data for a solitary wave and a crest-focussed wave group approaching a trapezoidal breakwater. The ISPH model is shown to produce close agreement for the free-surface evolution for both types of wave and generates overtopping volumes in satisfactory agreement with experimental data. Closer agreement with experimental data is obtained for ISPH compared to more popular weakly compressible SPH for the same resolution or particle size. Future work identifies conducting a convergence study and using more sophisticated boundary treatments.

【 授权许可】

Unknown