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大迎角翼-身组合体涡流特性计算
Calculation of Vortex Flow Characteristics on Wing-Body Combination at High Angles of Attack
【摘要】 论述了用非线性离散涡法来模拟大迎角下翼-身组合体涡流绕流的计算模型及计算方法;给出了一个典型翼-身组合体的涡流流态计算结果及其非线性气动特性和截面压强(或载荷)分布。
【Abstract】 Two computed models and a numerical method based on nonlinear discrete vortex method are presented to simulate the vortex flow about wing-body combinations.The two computed models consist of a same fuselage vortex model but a different vortex model for simulating the wing leading-edge vortex indiyidually, one model has a concentrated line vortex/sink and the other has a number of diffused vortex filaments. The vortex flow patterns and the nonlinear aerodynamic characteristics of a typical wing-body combination haye been calculated. Comparing with the experimental data, it is shown that the computational results are resonably accurate.
【Key words】 wing-body combination; high angles of attack; discrete vortex method;
- 【文献出处】 空气动力学学报 ,ACTA AERODYNAMICA SINICA , 编辑部邮箱 ,1997年01期
- 【分类号】V211
- 【下载频次】66