NUMERICAL SIMULATION OF WHOLE THREE-DIMENSIONAL FLOW FIELD IN STIRRED TANK WITH ANISOTROPIC TURBULENCE MODEL

SUN Haiyan; WANG Weijing; MAO Zaisha

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NUMERICAL SIMULATION OF WHOLE THREE-DIMENSIONAL FLOW FIELD IN STIRRED TANK WITH ANISOTROPIC TURBULENCE MODEL

更新时间：2025-12-10

- NUMERICAL SIMULATION OF WHOLE THREE-DIMENSIONAL FLOW FIELD IN STIRRED TANK WITH ANISOTROPIC TURBULENCE MODEL
- CIESC Journal Issue 11, (2002)
- 作者机构：
  
  中国科学院过程工程研究所
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 November 2002，
  
  Published：25 November 2002
- 稿件说明：
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SUN Haiyan, WANG Weijing, MAO Zaisha. NUMERICAL SIMULATION OF WHOLE THREE-DIMENSIONAL FLOW FIELD IN STIRRED TANK WITH ANISOTROPIC TURBULENCE MODEL[J]. CIESC Journal, 2002, (11).
DOI：

SUN Haiyan, WANG Weijing, MAO Zaisha. NUMERICAL SIMULATION OF WHOLE THREE-DIMENSIONAL FLOW FIELD IN STIRRED TANK WITH ANISOTROPIC TURBULENCE MODEL[J]. CIESC Journal, 2002, (11). DOI：

摘要

根据搅拌槽内的流动呈各向异性的特点

引入适用于强旋转流场的各向异性k -ε湍流模型

用改进的内外迭代法对有挡板的Rushton桨搅拌槽进行了整体数值模拟 .利用文献中对搅拌槽内流场测定结果

给出了适用于Rushton桨搅拌槽的各向异性湍流黏度系数值 .模拟计算得到了搅拌槽内的流场分布和脉动速度分布

并同标准k -ε湍流模型计算结果及文献数据进行比较 .结果表明

各向异性k -ε湍流模型能成功反映Reynolds应力、湍流动能等湍流特征量

明显优于标准k -ε湍流模型 .

Abstract

In accordance with anisotropic feature of turbulent flow

an anisotropic k-ε turbulence model is used to predict the turbulent flow field and turbulent intensity generated by a Rushton disc turbine with the improved inner-outer iterative procedure considering the feature of flow swirl in the stirred tank.The predicted flow patterns are compared with experimental data and the simulation results with the standard k-ε turbulence model.The anisotropic k-ε turbulence model gives better prediction than the standard k-ε turbulence model.The predicted turbulent flow field is in agreement with to experimental data and the trend of the turbulence intensity can be effectively reflected in the simulation.

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