空气动力学学报Issue(3)：334-338,5.DOI:10.7638/kqdlxxb-2012.0100
基于结构网格的栅格翼绕流数值模拟
Bumerical simulation of a grid fin missile based on structure grid
周培培1
作者信息
- 1. 中国航天空气动力技术研究院，北京 100074
- 折叠
摘要
Abstract
Grid fin,also known as lattice control,is a kind of unconventional aerodynamic lifting and control surfaces that consists of an outer frame supporting an inner grid of intersecting planar surfaces with small chord.In this paper an efficient meshing strategy is developed to generate high quality point-to-point multi-block structured grid for such a complex geometry.The N-S equations are solved numerically using the finite volume method on the herein generated multi-block structured grid,adopting multi-grid method to ac-celerate the convergence.With these strategies the flow around a grid-finned missile is simulated at subson-ic,transonic and supersonic states,with free stream Mach number ranging from 0.5 to 3.The simulation results show excellent agreement with the experiment data for the aerodynamic forces and moments.Detailed flow field is also obtained that exhibits the complex flow properties inside the grid frame.The results provide an effective means for accurate simulation of grid fin missiles flow fields.关键词
栅格翼/多块结构网格/N-S 方程/数值模拟Key words
grid fins/multi-block structure grid/N-S equations/numerical simulation分类
航空航天引用本文复制引用
周培培..基于结构网格的栅格翼绕流数值模拟[J].空气动力学学报,2014,(3):334-338,5.
