【摘要】 提出了飞行器任意形状截面表观面积的数值计算模型和方法,从而求解非圆因子(即非圆剖面与当量圆剖面局部法向力系数之比)和翼身干扰因子的修正系数。计算结果与解析解进行了比较,可看出该计算方法具有精度高和广泛通用性的特点。它对复杂飞行器大迎角(含小迎角)气动特性工程估算有现实的使用价值。更多还原

【Abstract】 A numerical model and computing method are presented for calculating the apparent areas of arbitrary shaped cross section of flight vehicle, which are then used to find the non-circular factors (i.e., the ratios of local normal-force coefficient to its equivalent-circle one) and the correcting coefficients of wing-body interference factor. The comparison of the results with some analytical values indicates that the present method has high accuracy and comprehensive versatility. It is actually useful to the prediction for aerodynamic characteristics of complicated flight vehicle at high / low angles of attack.更多还原