含运动物体流场计算的自适应非结构二维网格生成方法  

GENERATION METHOD OF UNSTRUCTURED ADAPTIVE 2-D MESHES FOR SIMULATING FLOWS WITH MOVING BODIES

作　　者：耿继辉[1] 吴德红[1] 吴慧中[2] 

机构地区：[1]南京理工大学动力工程学院,江苏南京210094 [2]南京理工大学信息学院,江苏南京210094

出　　处：《计算物理》2002年第6期493-500,共8页Chinese Journal of Computational Physics

基　　金：国家自然科学基金资助项目

摘　　要：采用自动插点的Delaunay方法和局部网格重新生成方法 ,对含运动边界自适应非结构二维网格生成方法进行了系统研究 ,实现了带有非定常运动物体流场的数值计算 ,并进行了数值实验 .A method to generate unstructured adaptive 2\|D meshes is presented for simulating flows with moving bodies. Delaunay triangulation criterion in conjunction with the automatic point creation is used to generate 2\|D unstructured grids. A local grid regeneration method is proposed to cope with moving boundaries. Numerical examples include a flow field induced by a moving circle plate, the interactions of shock waves with movable bodies and the movement of a projectile within a ram accelerator, illustrating an efficient and robust mesh generation method developed in the paper. [

关 键 词：运动物体流场 二维网格 生成方法 动边界 非结构网格 自适应 Delaunay方法 数值计算 定常气动流场 

分 类 号：O35[理学—流体力学]