Based on the high/low speed wind tunnel pressure test and CFD numerical simulation,the aerodynamic effects of the external store under the left and right wings were obtained.The finite volume method was used to solve the N-S equations with turbulence models based on the three-level grid generation technology and to simulate the turbulent flow field of the external store.The effectiveness of research methods was validated and the variation of aerodynamic coefficients with the angle of attack,side slip angle,and Mach was analyzed by combining the high/low speed wind tunnel pressure test.The results showed that the law of the lift coefficient of external store being affected by the angle of attack was consistent at high and low speeds;when the side slip angle was positive,the obstruction of the fuselage had a significant impact on the lateral force coefficient and yaw moment coefficient of the external store under the right wing.
关键词
外挂物/气动特性/数值模拟/风洞试验/压力分布
Key words
external store/aerodynamic characteristic/numerical simulation/wind tunnel test/pressure distribution
维普
万方数据