轴对称体外部流场的有旋特征线法

轴对称体的无粘，可压缩，定常，超音速流动的外部流场，在计算时，常采用流动为无旋的假设，当头部激波弯曲较大时，会产生一定的误差。本文对绕轴对称体的这类流动，用有旋特征线理论进行了数值计算。结果与实验数据的比较表明：用有旋特征线理论对绕轴对称体的流场进行计算是完全可行的。该方法的应用对轴对称体的气动力计算具有实际应用价值。

THE THEORY OF THE VISCID CHARACTERISTICS FOR THE FLOW FIELD OF THE AXISYMMETRIC BODY

When the idea, compressible, steady, isentropic, supersonic air passes around a axisymmetric body, irralional assumption is often used. If the shock wave of the nose is bent largely, a certain error would be occur. This paper applied the theory of rotational characteristics to calculating this flow of the axisymmctric body. The obtained numerical results show that this method is successive, when compared with experimental results. The application of the theory of rotational characteristics will be useful in computation of aerodynamic force.