空气动力学学报2019，Vol.37Issue(4)：655-662,689,9.DOI:10.7638/kqdlxxb-2018.0291
超声速条件下旋成体声爆典型影响因素分析
Analysis on typical parameters of bodies of revolution affecting the sonic boom
摘要
Abstract
Sonic boom is one of the key technologies for supersonic aircraft,particularly with regard to commercial air transport.The ARI_Boom in house code was used based on the near-field CFD simulation and far-field propagation model.Based on bodies of revolution,several flight and shape parameters were considered for investigating their effects on the sonic boom signature including overpressure and impulse.Mach numbers were varied from 1.41 to 6.0 due to some wind tunnel and flight tests results available for reference.Firstly,the method which used by the ARI_Boom was given and verified by a typical case.Secondly,flight and shape parameters were considered for investigating their effects on the sonic boom based on the ARI_Boom.According to the parametric analysis,it is found that sonic boom can be reduced by increasing flight altitude, decreasing cone half-angle,increasing fineness ratio or decreasing Mach number.However,with the increase of bluntness parameter,overpressure first decreases and then increases.关键词
超声速飞行器/声爆/外形参数/飞行参数/影响分析Key words
supersonic aircraft/sonic boom/shape parameters/flight parameters/impact analysis分类
航空航天引用本文复制引用
冷岩,钱战森,刘中臣..超声速条件下旋成体声爆典型影响因素分析[J].空气动力学学报,2019,37(4):655-662,689,9.基金项目
国家自然科学基金项目(11672280) （11672280）
