| 二维翼型绕流计算中预处理和多重网格方法的应用 |
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| 引用本文： | 梁子轩,丁珏,翁培奋.二维翼型绕流计算中预处理和多重网格方法的应用[J].上海大学学报(自然科学版),2011,17(2):158-163. |
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| 作者姓名： | 梁子轩 丁珏 翁培奋 |
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| 作者单位： | 上海大学,上海市应用数学和力学研究所,上海,200072 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 结合Turkel矩阵预处理方法和多重网格方法,发展一种适合低速粘性流动计算的高效数值方法,通过对Navier-Stokes方程的时间导数项实施Turkel矩阵预处理,使得可压缩Navier-Stokes方程在低速情况下的系统刚性得到改善,为进一步加速收敛,提高计算效率,采用多重网格的3层V循环方式,对RAE2822超临...
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| 关 键 词： | 低速流动 多重网格 预处理 隐式求解 |
Application of Preconditioning and Multi-grid Technique to Two-Dimensional Flow Calculation |
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| HANG Zi-xuan,DING Jue,WENG Pei-fen.Application of Preconditioning and Multi-grid Technique to Two-Dimensional Flow Calculation[J].Journal of Shanghai University(Natural Science),2011,17(2):158-163. |
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| Authors: | HANG Zi-xuan DING Jue WENG Pei-fen |
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| Institution: | LIANG Zi-xuan,DING Jue,WENG Pei-fen(Shanghai Institute of Applied Mathematics and Mechanics,Shanghai University,Shanghai 200072,China) |
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| Abstract: | Turkel preconditioning matrix and multi-grid technique are combined to develop an efficient method suitable for numerical computation of low-speed viscous flow.Rigidity of the system of compressible Navier-Stokes equations is improved using the Turkel preconditioning matrix,thus the compressible range of Mach of two-dimensional flow is extended for low-speed flows.By using the LU-SGS(lower-upper symmetric Gauss-Seidel) implicit method and introducing preconditioning methods together with a multigrid scheme,... |
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| Keywords: | low speed flow multi-grid preconditioning method implicit method |
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