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通过计算流体动力学(CFD)方法研究了乘波体在平衡气体条件下的气动力性能,并与完全气体条件下的计算结果进行了对比,分析结果表明:平衡气体对乘波体气动性能的影响是由边界层内的化学反应降低了边界层诱导压力而产生的.相对于攻角的影响,平衡气体效应对乘波体升阻比及俯仰力矩的影响并不大,但对压心位置有一定影响;并且平衡气体效应对乘波体气动特性的影响规律有别于其对再入轨道器气动特性的影响规律.研究结果对高空滑翔乘波体飞行器的设计有一定的参考价值.
The aerodynamic performance of the multiplied wave body under equilibrium gas conditions is studied by computational fluid dynamics (CFD) method. Comparing with the calculation results under complete gas conditions, the results show that the effect of balanced gas on the aerodynamic performance The influence is caused by the chemical reaction in the boundary layer reducing the pressure induced by the boundary layer.Compared with the effect of the angle of attack, the effect of the balanced gas on the lift-drag ratio and pitch moment of the multiplier is not significant, And the effect of the balance gas effect on the aerodynamic characteristics of the multiplied wave body is different from that of its effect on the aerodynamic characteristics of the reentry orbiter.The results of the study have certain reference value for the design of the high altitude glider multipurpose body vehicle.