| Direct simulation on two-phase flows with two-way coupling velocity model |
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| 作者姓名： | SHI Xing LIN Jianzhong LIN Jianzhong |
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| 作者单位： | State Kev Laboratory of Fluid Power and Control, Department of Mechanics, Zhejiang University, Hangzhou 310027, China,State Kev Laboratory of Fluid Power and Control, Department of Mechanics, Zhejiang University, Hangzhou 310027, China,Hangzhou Institute of Applied Engineering, Hangzhou 310012, China |
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| 基金项目： | Project supported bv the Research Fund for the Trans-century Training Program for Talents sponsored by the State Education Commission. |
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| 摘 要： | Based on the idea that not only the fluid mechanism but also the movement of the particles affects the character of the multiphase flow, a new two-way coupling model is developed. Then it is applied to the numerical simulation of the vortex pairing in a mixing layer and it is found that the particles impede the process of vortex pairing and reduce the Reynolds stress; the particle with relative small Stokes number moves with the flow and the particle with relative large Stokes number moves towards the edge, but the centrifugal tendency is delayed as compared with the one way coupling model.
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| 关 键 词： | two-way coupling two-phase flows mixing layer |
Direct simulation on two-phase flows with two-way coupling velocity model |
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| SHI Xing,LIN Jianzhong,LIN Jianzhong.Direct simulation on two-phase flows with two-way coupling velocity model[J].Progress in Natural Science,2001,11(2):149-155. |
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| Authors: | Shi Xing LIN Jianzhong |
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| Institution: | 1. State Kev Laboratory of Fluid Power and Control, Department of Mechanics, Zhejiang University, Hangzhou 310027, China
2. Hangzhou Institute of Applied Engineering, Hangzhou 310012, China;State Kev Laboratory of Fluid Power and Control, Department of Mechanics, Zhejiang University, Hangzhou 310027, China |
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| Abstract: | Based on the idea that not only the fluid mechanism but also the movement of the particles affects the character of the multiphase flow, a new two-way coupling model is developed. Then it is applied to the numerical simulation of the vortex pairing in a mixing layer and it is found that the particles impede the process of vortex pairing and reduce the Reynolds stress; the particle with relative small Stokes number moves with the flow and the particle with relative large Stokes number moves towards the edge, but the centrifugal tendency is delayed as compared with the one way coupling model. |
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| Keywords: | two-way coupling two-phase flows mixing layer |
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