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稀薄气体效应对高超声速飞行流动的影响分析
陈松; 胡远; 孙泉华
Source Publication高超声速专题研讨会暨第五届全国高超声速科学技术会议论文集
2012
Conference Name第五届全国高超声速科技学术会议
Conference Date2012.11.12-2012.11.14
Conference Place桂林
Abstract高超声速飞行器在飞行过程中,由于黏性耗散和激波压缩,流动一般具有高速、高温和热化学非平衡的特点:同时由于气动热约束,高超声速巡航要求在密度较低的大气环境中进行,稀薄气体效应显现,流动物理更为复杂。本文结合CFD与DSMC方法,分别模拟了平板、圆柱和球头等简单外形在氩气和近真实大气环境中飞行时的流场,分析了稀薄气体效应对高超声速流动的一些影响规律。研究发现,平板前缘存在局部稀薄气体效应,即使对于小K
Keyword高超声速流动 稀薄气体效应 真实气体效应 流动非平衡
DepartmentLHD微尺度和非平衡流动
Language中文
Document Type会议论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/46980
Collection高温气体动力学国家重点实验室
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陈松,胡远,孙泉华. 稀薄气体效应对高超声速飞行流动的影响分析[C]高超声速专题研讨会暨第五届全国高超声速科学技术会议论文集,2012.
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