| 引用本文: | 李桦,王磊,王承尧.高超音速粘性流场数值计算中差分格式的对比分析.[J].国防科技大学学报,1999,21(4):1-4.[点击复制] |
| Li Hua,Wang Lei,Wang Chengyao.An Investigation of Difference Schemes for Numerical Simulation of Hypersonic Viscous Flowfield[J].Journal of National University of Defense Technology,1999,21(4):1-4[点击复制] |
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| 高超音速粘性流场数值计算中差分格式的对比分析 |
| 李桦, 王磊, 王承尧 |
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(国防科技大学 航天技术系 湖南 长沙 410073)
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| 摘要: |
| 本文通过三维高超音速粘性流场的求解对三种常用的差分格式: Harten的TVD格式、修正后的Osher-Chakravarthy 的TVD格式以及Janeson的当地极值递减(LED)格式对激波的分辨率、边界层计算的准确性和格式的计算效率等三个方面进行了较细致的对比分析, 为三维高超音速复杂流场的数值模拟打下基础。 |
| 关键词: 三维高超音速流场, 差分格式, 数值模拟 |
| DOI： |
| 投稿日期：1998-09-12 |
| 基金项目:国家自然科学基金资助项目 |
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| An Investigation of Difference Schemes for Numerical Simulation of Hypersonic Viscous Flowfield |
| Li Hua, Wang Lei, Wang Chengyao |
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(Department of Aerospace Technology, NUDT, Changsha, 410073)
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| Abstract: |
| In this paper, the time-dependent numerical method has been used to solve the three dimensional Navier-Stokes equation, the numerical procedure uses Roe's flux difference splitting technigue and TVD scheme or LED scheme for the convective terms and central differencing scheme for viscous terms. Numerical solution of hypersonic laminar flow over a blunt biconic with attack angle is obtained.The resolution of shock, computational accuracy of viscous boundary layer and the efficiency of three schemes: Osher-Chakraverthy's TVD scheme, Harten's TVD scheme and Jameson's LED scheme, are investigated and compared by the numerical calculation of three dimensional hypersonic viscous flow. |
| Keywords: three dimensional hypersonic viscous flow, TVD scheme, LED scheme, numerical simulation |
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