| 引用本文: | 李桦,王承尧,王磊.用多重网格TVD方法求解三维高超音速粘性流场.[J].国防科技大学学报,1998,20(2):1-4.[点击复制] |
| Li Hua,Wang Chengyao,Wang Lei.Multigrid and TVD Scheme for Three Dimension Hypersonic Viscous Flowfield[J].Journal of National University of Defense Technology,1998,20(2):1-4[点击复制] |
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| 用多重网格TVD方法求解三维高超音速粘性流场 |
| 李桦, 王承尧, 王磊 |
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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: |
| 本文采用时间相关法求解了三维N-S方程。在计算中, 对于压力和对流项采用Roe的通量差分分裂技术和Osher-Chakravarthy的TVD格式, 对于粘性项, 采用了中心差分格式。通过数值模拟得到了钝头双锥体高超音速层流流场在不同攻角下的数值解。计算的重点放在壁面热流率的预测。在攻角为4°和12°的状态下, Stanton数的计算值与实验值进行了比较, 二者吻合较好。为了加快收敛速率, 计算时采用了多重网格方法。 |
| 关键词: 三维高超音速粘性流, TVD 格式, 通量分裂, 多重网格 |
| DOI： |
| 投稿日期：1997-01-13 |
| 基金项目:国家自然科学基金资助 |
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| Multigrid and TVD Scheme for Three Dimension Hypersonic Viscous Flowfield |
| Li Hua, Wang Chengyao, Wang Lei |
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(Department of Aerospace Technology, NUDT, Changsha, 410073)
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| Abstract: |
| In this paper, the time-dependent numerical method is used to solve the three dimensional Navier-Stokes equation. In the numerical procedure, Roe's flux difference splitting technique and Chakravarthy-Osher TVD scheme are used for the pressure and convective terms. Numerical solution of the Hypersonic laminer flow over a blunt biconic with 4°and 12°attack angle is obtained. The emphasis is placed on the predictions of the heat transfer rate on the wall. The numerical results of Stanton number are compared with the experimental data. And the multigrid method is also used to accelerate the convergence. |
| Keywords: 3D hyperonic viscous flow, TVD scheme, Multigrid, Flux difference splitting technique |
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