IMECH-IR  > 流固耦合系统力学重点实验室
Alternative TitleDelaunay triangulation and free surface extraction for SPH method
杨秀峰; 刘谋斌
Source Publication计算力学学报
Other AbstractSmoothed particle hydrodynamics(SPH) is a meshfree,Lagrangian particle method,which combines the best features of Eulerian and Lagrangian grid-based methods,and has been successfully applied to different areas in sciences and engineering.The post-processing of SPH is not as straight forward and convenient as the grid-based methods since the information is based on irregularly distributed particles rather than on a grid system.Moreover,free surfaces are usually difficult to be reconstructed or extracted based simply on SPH particles.In this paper,a Delaunay triangulation is developed,in which a triangular mesh is generated form SPH particles through Delaunay triangulation,and the related information on SPH particles is converted to the triangular mesh.The SPH post-processing can then be conducted on the triangular mesh rather than on the SPH particles.Also free surfaces can be extracted from the generated Delaunay mesh.Two typical examples,the head-on collision of two liquid drops and dam collapse have been simulated.The obtained results with precisely extracted free surfaces demonstrate the effectiveness of the approach of Delaunay triangulation and free surface extraction for SPH method.
KeywordSph Smoothed Particle Hydrodynamics (Sph) Delaunay Triangulation Free Surface Extraction Post-processing
Indexed ByCSCD
WOS KeywordSPH ; smoothed particle hydrodynamics (SPH) ; Delaunay triangulation ; free surface extraction ; post-processing
Funding Organization国家自然科学基金
Citation statistics
Cited Times:3[CSCD]   [CSCD Record]
Document Type期刊论文
Recommended Citation
GB/T 7714
杨秀峰,刘谋斌. SPH方法Delaunay三角刨分与自由液面重构[J]. 计算力学学报,2016,33(4):594-598.
APA 杨秀峰,&刘谋斌.(2016).SPH方法Delaunay三角刨分与自由液面重构.计算力学学报,33(4),594-598.
MLA 杨秀峰,et al."SPH方法Delaunay三角刨分与自由液面重构".计算力学学报 33.4(2016):594-598.
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