CAJ | 학술논문

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.
급출계산책격익화궤신조합체아초음속기동력간우이론방법.아음속채용와격법계산책격익기동력,용일개이유우겁자화원주영상와계모의궤신적상세류장화책격익천이도궤신상기동재하.초음속가정책격익처재궤신횡향류동적상세류장중，용익편이론계산궤신대책격익기동력간우적수정인자.용본문방법계산료궤개책격익화궤신조합체적기동특성적도료비교만의적결과.
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.