| 二维非结构网格Euler方程高效解法 |
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| 引用本文： | 赵庆贺,白俊强,许晓平,袁晓军.二维非结构网格Euler方程高效解法[J].科学技术与工程,2008,8(1):124-128. |
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| 作者姓名： | 赵庆贺 白俊强 许晓平 袁晓军 |
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| 作者单位： | 西北工业大学,西安,710072 |
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| 基金项目： | 致谢本文得到了朱军博士的帮助,在此深表谢意. |
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| 摘 要： | 在非结构网格上应用多重网格技术加速 Euler 方程的收敛,在多重网格中通过聚合法进行粗网格生成,并对粗网格中的多边形网格做了等价面处理.在空间离散上采用 Roe 格式,在时间推进上分别采用了显式和隐式算法.通过对 NA-CA0012 翼型和 RAE2822 翼型的流场模拟,比较了显式多重网格法和隐式多重网格法的计算效率.
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| 关 键 词： | 多重网格法 隐式时间推进 迎风格式 非结构网格 |
| 收稿时间： | 2007-09-18 |
Effective Method for Two-dimension Unstructured Grid Euler Equation |
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| ZHAO Qing-he,BAI Jun-qiang,XU Xiao-ping,YUAN Xiao-jun.Effective Method for Two-dimension Unstructured Grid Euler Equation[J].Science Technology and Engineering,2008,8(1):124-128. |
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| Authors: | ZHAO Qing-he BAI Jun-qiang XU Xiao-ping YUAN Xiao-jun |
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| Abstract: | A multigrid algorithm has been developed to accelerate the convergence of the Euler equations to a steady state on unstructured triangular meshes. The coarse mesh is obtained by the agglomerated method. The coarse grid is polygon grid. Do some deals at the polygon grid face as the same value face, use the upwind scheme to simulate the field. The numerical solutions of flows around NACA0012 airfoil and RAE2822 airfoil are calculated with present method, compare the efficiency of explicit multigrid with implicit multigrid. |
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| Keywords: | multigrid implicit time advance upwind scheme unstructured grid |
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