|
个人信息Personal Information
特聘研究员
硕士生导师
任职 : 空气动力学会委员会委员；国家重大科技工程专项气动力/热专家组成员；《空气动力学报》编委；《气体物理》编委；
性别：男
毕业院校：中国空气动力研究与发展中心
学位：博士
所在单位：力学与航空航天学院
学科：飞行器设计. 流体力学
办公地点：大连理工大学综合实验一号楼203
联系方式：0411-84707176
电子邮箱：liujun65@dlut.edu.cn
A shock-fitting technique for cell-centered finite volume methods on unstructured dynamic meshes
点击次数：
论文类型：期刊论文
发表时间：2017-09-15
发表刊物：JOURNAL OF COMPUTATIONAL PHYSICS
收录刊物：SCIE、Scopus
卷号：345
页面范围：866-882
ISSN号：0021-9991
关键字：Shock-fitting; Unstructured dynamic grid; Shock wave; Numerical simulation
摘要：In this work, the shock-fitting technique is further developed on unstructured dynamic meshes. The shock wave is fitted and regarded as a special boundary, whose boundary conditions and boundary speed (shock speed) are determined by solving Rankine-Hugoniot relations. The fitted shock splits the entire computational region into subregions, in which the flows are free from shocks and flow states are solved by a shock-capturing code based on arbitrary Lagrangian-Eulerian algorithm. Along with the motion of the fitted shock, an unstructured dynamic meshes algorithm is used to update the internal node's position to maintain the high quality of computational meshes. The successful applications prove the present shock-fitting to be a valid technique. (C) 2017 Elsevier Inc. All rights reserved.