| Numerical Study of Solid-Liquid Two-Phase Flow in Stirred Tanks with Rushton Impeller (Ⅰ) Formulation and Simulation of Flow Field |
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| 作者姓名： | 王峰 王卫京 毛在砂 |
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| 作者单位： | Institute of Process Engineering Chinese Academy of Sciences，Beijing 100080，China，Graduate School of the Chinese Academy of Sciences，Beijing 100039，China，Institute of Process Engineering Chinese Academy of Sciences，Beijing 100080，China Chemical Engineering Department Dalian University，Dalian 116622，China.，Institute of Process Engineering Chinese Academy of Sciences，Beijing 100080，China |
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| 基金项目： | theNationalNaturalScienceFoundationofChina(No.20006015andNo.20236050). |
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| 摘 要： | Three-dimensional solid-liquid flow is mathematically formulated by means of the "two-fluid" approach and the two-phase k-ε-Ap turbulence model. The turbulent fluctuation correlations appearing in the Reynolds time averaged governing equations are fully incorporated. The solid-liquid flow field and solid concentration distribution in baffled stirred tanks with a standard Rushton impeller are numerically simulated using an improved "inner-outer" iterative procedure. The flow pattern is identified via the velocity vector plots and a recirculation loop with higher solid concentration is observed in the central vicinity beneath the impeller. Comparison of
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