摘要
网格变形是气动弹性计算中实现计算网格随运动边界变形的主要方法。在总结目前网格变形方法发展现状的基础上,对近几年常用的网格变形方法,即弹簧法、弹性体法、超限插值法、Delaunay背景网格法、径向基函数插值法和温度体法等做了简要的总结。根据各方法构建模型的不同,将它们分成物理模型法、数学插值法和混合方法 3类,简要介绍了各方法的基本思想和研究进展,重点比较了各方法的网格变形特性(变形能力、变形质量和变形效率)和优缺点。总结了当前流场边界与结构边界的数据传递方法,对当前气动弹性计算中遇到的网格变形的难点问题作了简要评述并对未来网格变形方法的发展方向进行了探讨。
Mesh deformation is a main method to implement the computational mesh deformation with a moving boundary in computational aeroelasticity.First,an investigation of the status of the current advances in the researches on mesh deformation is presented in this paper,and some common mesh deformation approaches in recent years are reviewed in detail,which are spring analogy method,elastic solid method,transfinite interpolation method,Delaunay graph method,radial basis function method and temperature analogy method.Besides,based on the established models,the existing methods can be classified into physical model method,mathematical interpolation method and hybrid approach.A brief introduction of each method is made on theoretical method and research advance.The main emphasis is on the difference among the three methods of advantages and disadvantages as well as properties including deformation capability,deformation quality and efficiency.As an important aspect in computational aeroelasticity,the calculation data transformation between flow field boundary and structure boundary is summarized as well.At last,the present problems of mesh deformation which are frequently encountered in computational aeroelasticity are discussed,and in order to meet the needs of projects,possible prospects in future mesh deformation investigations are also proposed.
出处
《航空学报》
EI
CAS
CSCD
北大核心
2014年第2期303-319,共17页
Acta Aeronautica et Astronautica Sinica
基金
国家自然科学基金(11072199
11172273)
航空科学基金(20121353014)~~
关键词
气动弹性
径向基函数
网格变形
弹簧法
弹性体法
背景网格
aeroelasticity
radial basis function
mesh deformation
spring analogy method
elastic solid method
background grid
