| 关于平面空穴流动的截断误差减小方法(英文) |
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| 引用本文： | 夏健,刘超群.关于平面空穴流动的截断误差减小方法(英文)[J].南京航空航天大学学报(英文版),2001,18(2). |
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| 作者姓名： | 夏健 刘超群 |
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| 作者单位： | 美国德州大学数学系, |
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| 基金项目： | 美国空军基金 ( No.F 496 2 0 -97-1-0 0 33)资助项目~~ |
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| 摘 要： | 提出了一种新的截断误差减小方法。该方法是利用在粗网格 ( 2 h)上估算截断误差进而减小在原始网格( h)上的误差的迭代过程 ,最终目的是利用粗网格得出更精确的结果以及发展一种新的粗网格直接数值模拟方法
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| 关 键 词： | 截断误差 有限差分 多重网络 |
TRUNCATION ERROR REDUCTION METHOD FOR PLANAR CAVITY FLOW |
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| XIA Jian,Liu Chaoqun.TRUNCATION ERROR REDUCTION METHOD FOR PLANAR CAVITY FLOW[J].Transactions of Nanjing University of Aeronautics & Astronautics,2001,18(2). |
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| Authors: | XIA Jian Liu Chaoqun |
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| Institution: | Xia Jian Liu ChaoqunDepartment of Mathematics,University of Texas at Arlington,Arlington,TX 76019 0408,USA |
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| Abstract: | A new so called truncation error reduction method (TERM) is developed in this work. This is an iterative process which uses a coarse grid (2 h ) to estimate the truncation error and then reduces the error on the original grid ( h ). The purpose is to use coarse grids to get more accurate results and to develop a new method which could do coarse grid direct numerical simulation (DNS) for more accurate and acceptable DNS solutions. |
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| Keywords: | truncation error finite difference multigrid |
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