北京航空航天大学学报 ›› 2001, Vol. 27 ›› Issue (1): 54-56.

• 论文 • 上一篇    下一篇

栅格翼和机身组合体的气动特性计算与分析

沈遐龄, 王丽丽   

  1. 北京航空航天大学 飞行器设计与应用力学系
  • 收稿日期:1999-08-26 出版日期:2001-01-31 发布日期:2010-11-19
  • 作者简介:沈遐龄(1942-),男,上海人,教授,100083,北京.

Aerodynamic Analysis of Grid Fin-Body Configurations

SHEN Xia-ling, WANG Li-li   

  1. Beijing University of Aeronautics and Astronautics, Dept. of Flight Vehicle Design and Applied Mechanics
  • Received:1999-08-26 Online:2001-01-31 Published:2010-11-19

摘要: 给出计算栅格翼和机身组合体亚超音速气动力干扰理论方法.亚音速采用涡格法计算栅格翼气动力,用一个二维偶极子和圆柱映像涡系模拟机身的上洗流场和栅格翼迁移到机身上气动载荷.超音速假定栅格翼处在机身横向流动的上洗流场中,用翼片理论计算机身对栅格翼气动力干扰的修正因子.用本文方法计算了几个栅格翼和机身组合体的气动特性的到了比较满意的结果.

Abstract: Aerodynamic analysis is made for grid fin-body configurations in subsonic and supersonic flow. Vortex lattice formulation has been used in predicting the aerodynamic characteristics for grid fin in subsonic flow. An infinite line doublet and imaging vortices inside the body are employed to model body upward and wing-body carry over load.In supersonic flow, the grid fin is assumed to locate in the cross flow of the body, the wing panel theory is used for calculating the aerodynamic interfere factor of the grid fin produced by the body. The aerodynamic characteristics of some grid fin-body configurations have been calculated, the theory agreed quite well with the experimental data.

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