| 2DEM—二维欧拉多流体计算方法 |
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| 引用本文： | 龚静芳 张丕亭. 2DEM—二维欧拉多流体计算方法[J]. 空气动力学学报, 1991, 19(1): 88-93 |
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| 作者姓名： | 龚静芳 张丕亭 |
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| 作者单位： | 北京应用物理与计算数学研究所(龚静芳)，北京应用物理与计算数学研究所(张丕亭) |
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| 摘 要： | 本文计算采用欧拉坐标系,在物质界面两侧布不同的标志点来描述界面的位置。每一个时间步长分解为拉氏计算、物质输运及扩散三步来完成。文中给出对平板凹槽问题及冲出波绕角问题的计算结果。
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| 关 键 词： | 非定常流 多流体 标志点 2DEM法 |
2 DEM-TWO DIMENSIONAL EULERIAN MULTlFLUID CALCULATIONS |
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| Gong Jingfang Zhang Feting. 2 DEM-TWO DIMENSIONAL EULERIAN MULTlFLUID CALCULATIONS[J]. Acta Aerodynamica Sinica, 1991, 19(1): 88-93 |
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| Authors: | Gong Jingfang Zhang Feting |
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| Affiliation: | Institute of Applied Physics and Computational Mathematics .Beijing |
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| Abstract: | In this paper an Eulerian method for two-dimensional hydrodynamic is given. Marker particles of different kinds are used for distinguishing between materials. A multiphase process for each calculation cycle combines both Lagrangian and Eulerian viewpoints, and also contains a separate diffusion and dissipation phase, which improves the accuracy and stability of the method.We have performed a variety of calculations. The calculation results for the plate dent experiment and a plane shock passing through a steel wedge are illustrated, and are compared with the data listed in the references. |
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| Keywords: | Eulerian method multifluid marker particles. |
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