类乘波体飞行器的气动力工程计算

The engineering calculation of aerodynamics for quasi-waverider vehicle

摘要: 为估算高超声速类乘波体飞行器的纵向气动力,以三角形面元逼近飞行器外形,根据飞行器迎/背风面情况分别采用达黑姆-巴克法、普朗特-迈耶耳法、切锥法和膨胀波方法计算无粘气动力;通过经验公式估算粘性阻力,并考虑飞行器主要部件之间的气动干扰情况,计算了翼片之间、翼身之间的气动干扰因子,得到整个飞行器的气动力.为验证该方法,以某飞行器为例进行了计算,计算结果与CFD吻合.

Abstract: To estimate longitudinal aerodynamics of quasi-waverider vehicle (QWV) in hypersonic speeds, we use triangle surface element to approach the vehicle's shape configuration, and adopt Dahlem-Buck formula, Prandtl-Meyer formula, tangent cone formula and expa