几何矢量角对球面收敛矢量喷管RCS的影响研究 *

推进技术 ›› 2018, Vol. 39 ›› Issue (4): 785-791.

几何矢量角对球面收敛矢量喷管RCS的影响研究 *

郭霄,杨青真,施永强,杨皓琦

西北工业大学动力与能源学院，陕西西安 710072,西北工业大学动力与能源学院，陕西西安 710072,西北工业大学动力与能源学院，陕西西安 710072,西北工业大学动力与能源学院，陕西西安 710072

发布日期:2021-08-15
作者简介:郭霄，男，博士生，研究领域为航空发动机进排气系统气动性能与隐身性能研究。

Effects of Vector Angle on RCS of Spherical Convergent Flap Nozzle

School of Power and Energy，Northwestern Polytechnical University，Xi’an 710072，China,School of Power and Energy，Northwestern Polytechnical University，Xi’an 710072，China,School of Power and Energy，Northwestern Polytechnical University，Xi’an 710072，China and School of Power and Energy，Northwestern Polytechnical University，Xi’an 710072，China

Published:2021-08-15

摘要/Abstract

摘要： 为了研究几何矢量角对球面收敛二元矢量喷管后向电磁散射特性的影响，采用物理光学迭代方法分别对不同俯仰矢量角和偏航矢量角下球面收敛矢量喷管的雷达截面积进行了数值模拟，得到了矢量角对于球面收敛二元矢量喷管的电磁散射特性的影响规律。研究结果表明:俯仰矢量角在两个探测平面内均可降低球面收敛二元矢量喷管的RCS20%以上，偏航矢量角只能在俯仰平面降低球面收敛二元矢量喷管RCS50%左右，在偏航平面则会增加球面收敛二元矢量喷管RCS约150%；俯仰矢量角为15°时，模型的后向RCS最小。

关键词: 球面收敛矢量喷管；矢量角；迭代物理光学；雷达散射截面积

Abstract: The radar cross section (RCS) of spherical convergent flap nozzles (SCFN) with different vector angles of pitch and yaw plane were obtained by using the numerical simulation method-iteration physical optical(IPO) to study the effects of vector angle on the backward scattering characteristics. It’s calculated that the vector angle of pitch can reduce the RCS of SCFN in the both detecting plane by above 20 percent. The vector angle of yaw can only reduce about 50 percent of the RCS in the pitch plane， but increase about 150 percent of the RCS in the yaw plane. The SCFN with 15 degree vector angle in the pitch plane has the smallest RCS value.

Key words: Spherical convergent flap nozzle；Vector angle；Iteration physical optics；Radar cross section

郭霄,杨青真,施永强,杨皓琦. 几何矢量角对球面收敛矢量喷管RCS的影响研究 *[J]. 推进技术, 2018, 39(4): 785-791.

GUO Xiao,YANG Qing-zhen,SHI Yong-qiang,YANG Hao-qi. Effects of Vector Angle on RCS of Spherical Convergent Flap Nozzle[J]. Journal of Propulsion Technology, 2018, 39(4): 785-791.

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