Fast mesh deformation based on Delaunay graph and radial basis function

摘要：

　　A novel mesh deformation technique is developed based on the Delaunay graph mapping method and the radial basis function (RBF) method.The algorithm combines the advantages of the efficiency of Delaunay-graph-mapping mesh deformation and better control of the mesh quality near the surface.The Delaunay graph mapping is used to divide the mesh domain into a number of sub-domains.On each of the sub-domains,the radial basis function is applied to build a much smaller sized translation matrix between the original mesh and the new mesh,resulting a similar speed for the mesh deformation as the fast Delaunay graph mapping method.The paper will show how the near-wall mesh quality is controlled and improved by the new method while the computational time is compared with the original Delaunay graph mapping method.

关键词： Dynamic grid Moving mesh Grid deformation Delaunay graph Radial basis function

作者: WangYibin Ning Qin Ning Zhao

作者单位: College of Aeronautics and Astronautics, Nanjing University of Aeronautics and Astronautics, Nanjing Department of Mechanical Engineering,The University of Sheffield,Sheffield S1 3JD,UK

会议类型: 国际会议

会议名称: The 8th International Conference of Computational Fluid Dynamics, (ICCFD8)(第八届国际计算流体力学会议)

会议地点: 成都

会议语种:英文

页码: 1-21

在线出版日期: 2014-07-25（万方平台首次上网日期，不代表论文的发表时间）