| 速度、压力耦合方程组的块隐式解 |
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| 引用本文： | 吴美娟,M.A.Letchziner.速度、压力耦合方程组的块隐式解[J].华东理工大学学报(自然科学版),1988(2). |
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| 作者姓名： | 吴美娟 M.A.Letchziner |
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| 作者单位： | 华东化工学院化学工程研究所，曼彻斯特理工学院 英国 |
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| 摘 要： | 提出了求解回流中速度、压力耦合方程组的两组块交替方向隐式迭代的算法。以存在解析解的无粘射流为算例,进行了数值模拟;同时还就计算时间与所需迭代次数将此法与SIMPLE法作了比较。结果表明,使用此法可节省计算机时、提高收敛速率,所得数值解与解析解也相当吻合。讨论了迭代过程中的最佳松弛因子。
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| 关 键 词： | 守恒方程 耦合度 块交替方向隐式迭代 数值精度 局部线化 松弛因子 回流 |
Block-implicit solution of pressure-linked equations |
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| Wu Meijuan.Block-implicit solution of pressure-linked equations[J].Journal of East China University of Science and Technology,1988(2). |
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| Authors: | Wu Meijuan |
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| Abstract: | Two alternative solution strategies of Block ADI method were proposed. An irrotational corner flow, for which an analytic solution is available, was chosen as a modelproblem. The numerical results agree with the analytic one quite well. A comparison of computational time and iteration number between Block ADI and SIMPLE has been made. It has been shown that convergence could be sped up by using Block ADI. The optimum relaxation factors during iteration were also investigated. |
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| Keywords: | calculation solution of equation conservation equation degree of coupling block alternating direction implicit numerical accuracy locally linearization relaxation factor recirculating flow |
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