| 三维抛物型流动问题的非错列网格计算方法 |
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| 引用本文： | 张辉 陈善年. 三维抛物型流动问题的非错列网格计算方法[J]. 东南大学学报(自然科学版), 1993, 23(5): 103-109 |
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| 作者姓名： | 张辉 陈善年 |
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| 作者单位： | 东南大学热能工程研究所，东南大学动力工程系，东南大学热能工程研究所 |
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| 摘 要： | 用控制容积有限差分法计算三维抛物型流动，通常要把三个速度分量分别定义在三套相互错列的网格上，以消除不皮形场对解的真空性所产生的影响。网格的错列使得计算过程和程度变得相当复杂，造成了应用上的困难。本文利用虚拟网格和插值技术，在网格不错列的的前提下，建立了三维抛物型流动的新的计算方法。对典型流动问题的计算结果与实验数据、近似分析解以及用错列网格方法计算的结果一致。这种方法对简化述化床悬浮空间内的气－…
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| 关 键 词： | 流体力学 抛物型流动 非错列网格 |
Numerical Procedure of Three-dimensional Parabolic Flow Problems on Nonstaggered Grids |
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| Zhang Hui. Numerical Procedure of Three-dimensional Parabolic Flow Problems on Nonstaggered Grids[J]. Journal of Southeast University(Natural Science Edition), 1993, 23(5): 103-109 |
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| Authors: | Zhang Hui |
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| Affiliation: | Zhang Hui (Thermoenergy Engineering Research Institute) Chen Shannian (Department of Power Engineering) Xu Yiqian (Thermoenergy Engineering Research Institute) |
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| Abstract: | Numerical computation of three-dimensional parabolic flow problems with finite difference scheme on staggered grids is very complicate because the three velocity components are defined on three different set of grids, respectively, which leads to additional transfer of variables among different grids. In this paper a new procedure for the numerical solution to three-dimensional parabolic flow problems is developed on non-staggered grids with virtual staggered grids and interpolation technique. Numertical results with the present method show good agreement with experimental data. analytical solution and numerical results obtained by staggered grid method. |
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| Keywords: | fluid mechanics finite difference method viscous flow discretization |
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