基于马蹄涡模型的飞机尾流介电常数分布的快速建模方法

 为便于研究飞机尾流电磁散射特性，提出了一种飞机尾流介电常数分布的快速建模方法。根据马蹄涡模型得到飞机尾流的诱导速度场，并利用Euler方程和等熵流方法求出了尾流的热力学参数分布，进而得到介电常数分布。同时，提供了一种将针对一种飞机计算出的结果外推到另一种飞机上的方法，避免了重复计算。该方法具有计算量小、涉及参数少的特点，是一种快速简便地模拟飞机尾流介电常数分布的方法。

Rapid Modeling of Distribution of Aircraft Wake Dielectric Constant Based on Horse-shoe Vortex Model

For the convenience of the study of aircraft wake vortex scattering characteristics,a rapid modeling method for the wake dielectric constant distribution is put forward. In this article,the induced velocity field of an aircraft wake is obtained based on the horse-shoe vortex model. From the velocity field,the Euler equation and isentropic flow method are used to work out the thermodynamic parameter distribution of the wake vortex,and then the dielectric constant distribution is obtained. At the same time,a ...