| 预处理方法在含运动边界问题中的应用 |
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| 引用本文： | 孙文斌,杨基明.预处理方法在含运动边界问题中的应用[J].中国科学技术大学学报,2008,38(11). |
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| 作者姓名： | 孙文斌 杨基明 |
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| 作者单位： | 中国科学技术大学近代力学系,安徽合肥,230027 |
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| 摘 要： | 通过把预处理方法引入ALE(arbitrary Lagrangian Eulerian)控制方程的求解中,使得对含有动边界的从低速到高速的广泛流动问题可采用统一的数值算法.采用MUSCL格式在非结构网格上进行空间离散;采用隐式双时间推进,以提高计算效率并保持足够的时间精度.通过几个算例验证了该算法的计算能力.
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| 关 键 词： | 预处理 可压缩/不可压缩流动 |
Application of preconditioning method in moving boundary flow |
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| SUN Wen-bin,YANG Ji-ming.Application of preconditioning method in moving boundary flow[J].Journal of University of Science and Technology of China,2008,38(11). |
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| Authors: | SUN Wen-bin YANG Ji-ming |
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| Abstract: | Applying the preconditioning technique into the arbitrary Lagrangian Eulerian (ALE) method,a uniform way to simulate flows in both incompressible and compressible fields with moving boundaries was presented. MUSCL scheme was employed for spatial discretization of unstructured meshes,and implicit dual-time stepping was employed to improve the efficiency while keeping time accuracy. Several cases were computed to prove the capability of this algorithm. |
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| Keywords: | ALE |
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