| 通风分裂算法在有限元非结构网格中的推广 |
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| 引用本文： | 王江锋 伍贻兆. 通风分裂算法在有限元非结构网格中的推广[J]. 中国科学技术大学学报, 1999, 29(1): 122-126 |
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| 作者姓名： | 王江锋 伍贻兆 |
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| 作者单位： | 南京航空航天大学空气动力学系 |
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| 摘 要： | 将在结构网格中发展起来的通风分裂算法推广到有限体积非结构网格中，并成功地进行了定常跨声速二维欧拉方程的数值计算．此格式具有流通量矢量分裂格式的简单性及通量差分分裂格式的高阶精度．最后给出的ＮＡＣＡ００１２翼型绕流的结果与实验结果符合的较好．
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| 关 键 词： | 通风分裂算法，有限体积法，非结构网格，欧拉方程 |
A New Flux Splitting Scheme on Unstructured Grids: AUSM |
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| WANG Jiangfeng WU Yizhao. A New Flux Splitting Scheme on Unstructured Grids: AUSM[J]. Journal of University of Science and Technology of China, 1999, 29(1): 122-126 |
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| Authors: | WANG Jiangfeng WU Yizhao |
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| Affiliation: | Aeronautics and Astronautics of Nanjing University |
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| Abstract: | A new flux splitting scheme termed AUSM (an enhanced version of AUSM) is improved in order to be used on unstructured grids. The new polynomial representations for splitting the Mach number and pressure are defined as well as the common speed of sound at the interface of the cells. The flux splitting is developed from the first order accuracy to second order accuracy by extrapolation. Also an implicit finite volume scheme is developed by using the linearization method. The transonic flow results for the NACA0012 airfoil are obtained with this scheme and compared with the Van Leer flux vector splitting results. |
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| Keywords: | AUSM finite volume scheme unstructured grids Enliv equition |
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