Echo Characteristic Analysis of the Nonequilibrium Wakes of Reentry Vehicle

摘要

The article makes use of a method to calculate the flow fields of pure airnonequilibrium reentry vehicle wakes. It analyzes the effects of wake plasma body fields on radar wave frequencies. In conjunction with this, it takes a step further calculations of radar scattering cross sections under several types of elevation conditions. It explains several important factors influencing cross section size and distribution. Analyses and calculations clearly show that, after taking the Reynolds number, which is verified with the diameter of the bottom section or base of the object and environmental parameters, and arriving at turning point or transition values, in fully developed turbulent flow wakes, it is possible to show the appearance of the phenomenon of abrupt increase in scattering cross sections.