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A two-scale second-order moment two-phase turbulence model for simulating dense gas-particle flows 被引量：4

A two-scale second-order moment two-phase turbulence model for simulating dense gas-particle flows
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摘要 A two-scale second-order moment two-phase turbulence model accounting for inter-particle collision is developed, based on the concepts of particle large-scale fluctuation due to turbulence and particle small-scale fluctuation due to collision and through a unified treatment of these two kinds of fluctuations. The proposed model is used to simulate gas-particle flows in a channel and in a downer. Simulation results are in agreement with the experimental results reported in references and are near the results obtained using the sin- gle-scale second-order moment two-phase turbulence model superposed with a particle collision model （USM-θ model） in most regions. A two-scale second-order moment two-phase turbulence model accounting for inter-particle collision is developed, based on the concepts of particle large-scale fluctuation due to turbulence and particle small-scale fluctuation due to collision and through a unified treatment of these two kinds of fluctuations. The proposed model is used to simulate gas-particle flows in a channel and in a downer. Simulation results are in agreement with the experimental results reported in references and are near the results obtained using the sin- gle-scale second-order moment two-phase turbulence model superposed with a particle collision model （USM-θ model） in most regions.
作者 Zhuoxiong Zeng Lixing Zhou Jian Zhang
机构地区 Department of Engineering Mechanics Department of Mechanical Engineering
出处 《Acta Mechanica Sinica》 SCIE EI CAS CSCD 2005年第5期425-429,共5页 力学学报（英文版）
基金 The project supported by the Special Funds for Major State Basic Research,China(G-1999-0222-08) the Postdoctoral Science Foundation(2004036239)
关键词 Gas-particle flows .Second-order moment model . Two-scale fluctuation Gas-particle flows .Second-order moment model . Two-scale fluctuation
分类号 O357.5 [理学—流体力学]
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参考文献14

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Acta Mechanica Sinica
2005年 第5期

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