首页 | 本学科首页   官方微博 | 高级检索  
     检索      

ADAPTIVE DELAUNAY TRIANGULATION WITH MULTIDIMENSIONAL DISSIPATION SCHEME FOR HIGH-SPEED COMPRESSIBLE FLOW ANALYSIS
作者姓名:P.  Dechaumphai  S.  Phongthanapanich
作者单位:Mechanical Engineering Department,Chulalongkorn University,Bangkok 10330,Thailand,Mechanical Engineering Department,Chulalongkorn University,Bangkok 10330,Thailand
基金项目:Project supported by the Thailand Research Fund (TRF). The authors are pleased to acknowledge the Thailand Research Fund (TRF) and the Royal Thai Navy for supporting this research.
摘    要:IntroductionHigh-speed compressible flows normally involve many complex flow phenomena,suchas shock waves,flow expansions,and shock-shock interactions1].Effects of thesephenomena are critical in the design of high-speed structures.These flows are charact…

关 键 词:Delaunay三角测量  高速可压缩流程分析  冲击波  逆算法
文章编号:0253-4827(2005)10-1341-16
收稿时间:2004-03-10

Adaptive delaunay triangulation with multidimensional dissipation scheme for high-speed compressible flow analysis
P. Dechaumphai S. Phongthanapanich.ADAPTIVE DELAUNAY TRIANGULATION WITH MULTIDIMENSIONAL DISSIPATION SCHEME FOR HIGH-SPEED COMPRESSIBLE FLOW ANALYSIS[J].Applied Mathematics and Mechanics(English Edition),2005,26(10):1341-1356.
Authors:P Dechaumphai  S Phongthanapanich
Institution:Mechanical Engineering Department, Chulalongkom University, Bangkok 10330, Thailand
Abstract:Adaptive Delaunay triangulation is combined with the cell-centered upwinding algorithm to analyze inviscid high-speed compressible flow problems.The multidimensional dissipation scheme was developed and included in the upwinding algorithm for unstructured triangular meshes to improve the computed shock wave resolution.The solution accuracy is further improved by coupling an error estimation procedure to a remeshing algorithm that generates small elements in regions with large change of solution gradients,and at the same time,larger elements in other regions.The proposed scheme is further extended to achieve higher-order spatial and temporal solution accuracy.Efficiency of the combined procedure is evaluated by analyzing supersonic shocks and shock propagation behaviors for both the steady and unsteady high-speed compressible flows.
Keywords:adaptive meth movement  Delaunay triangulation  cell-centered upwinding  high-speed compressible flow  
本文献已被 CNKI 维普 万方数据 SpringerLink 等数据库收录!
点击此处可从《应用数学和力学(英文版)》浏览原始摘要信息
点击此处可从《应用数学和力学(英文版)》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号