CHEN Li-hai, YANG Qing-zhen, CHEN Ling-ling, et al. Numerical smulation of RCS for 2-D convergent nozzle with different trailing edges[J]. 2012, 27(3).
CHEN Li-hai, YANG Qing-zhen, CHEN Ling-ling, et al. Numerical smulation of RCS for 2-D convergent nozzle with different trailing edges[J]. 2012, 27(3).DOI:
a program which could calculate the edge diffraction field was developed to simulate the radar scattering characteristics of nozzles with different trailing edges.An efficient algorithm to judge the occlusion relationship between face elements and a method to judge the contour line of trailing edges were proposed.On this basis
RCS (radar cross section) characteristics of the two-dimensional (2-D) convergent nozzles with four kinds of trailing edges were investigated.The results show that the program developed is reliable and the appropriate contour line modification of trailing edge can decrease the RCS of the nozzle in primary attitude angles.