应用笛卡尔非结构切割网格进行外挂物投放的数值模拟  

NUMERICAL SIMULATION OF THE STORE SEPARATION USING UNSTRUCTURED CARTESIAN CUTTED GRID

作　　者：桑为民[1] 李凤蔚[1] 鄂秦[1] 

机构地区：[1]西北工业大学飞机工程系,陕西西安710072

出　　处：《计算物理》2002年第3期268-272,共5页Chinese Journal of Computational Physics

摘　　要：描述了一种新的网格生成技术 ,即笛卡尔非结构切割网格技术 ,采用叉树数据结构 ,完成了几种单段和多段翼型以及三维机翼的网格生成 .应用中心有限体积法 ,对其绕流问题进行Euler方程数值模拟 ,并将计算结果与实验数据进行对比 .在机翼绕流数值模拟的基础上 。A new unstructured Cartesian cutted grid generation method is introduced. The grid generation of some airfoils and wing is performed with the tree data structure. Euler equations are solved using the cell-centred finite volume method. The results of flow field computation are in agreement with the experiments. These facts show that the grid generation and the numerical calculation approach is correct and reasonable. Based on the above work, a flow field numerical simulation of wing and store separation is finished. This process provides a new way and tool for the more accurate solver of the unsteady flow problem.

关 键 词：数值模拟 笛卡尔非结构切割网格 叉数据结构 有限体积法 外挂物分离投放 网格生成 流场计算 飞行器 

分 类 号：V211.4[航空宇航科学与技术—航空宇航推进理论与工程]