实验流体力学2013，Vol.27Issue(2)：19-23,5.
开槽钝锥体及等离子体鞘套的RCS特性研究
Research on the RCS characteristics of blunt-cone with slots and plasma sheath
摘要
Abstract
The finite difference time domain (FDTD) method was used to study the RCS (radar cross section) characteristics of hypersonic vehicle and its plasma sheath. The parallel computational software was developed and used to analyze the far field time-domain backscattering characteristic and the RCS of blunt-cone with slots while incident angle was nearby 0 . The numerical values were compared with test results which were processed in aero-physics ballistic range of CARDC. The results showed that while slots-encircled blunt-cone filled with medium which had well performance in wave transmitting were equivalent to add a scatter center to blunt-cone artificially. The RCS in low-frequency and resonance region was not changed obviously when incident angle was nearby 0°, but in high-frequency region it was increased obviously for a wide frequency band.关键词
开槽/钝锥/等离子体鞘套/雷达散射截面积/时域有限差分法Key words
slot/blunt-cone/plasma sheath/RCS/FDTD method分类
航空航天引用本文复制引用
梁世昌,于哲峰,张志成,石安华,马平,黄洁..开槽钝锥体及等离子体鞘套的RCS特性研究[J].实验流体力学,2013,27(2):19-23,5.基金项目
国家自然科学基金(10902120,11272336) （10902120,11272336）
