Numerical Simulation of the Whole Three-Dimensional Flow in a Stirred Tank with Anisotropic  Algebraic Stress Model

Abstract

Abstract: In accordance to the anisotropic feature of turbulent flow, an anisotropic algebraic stress
model is adopted to predict the turbulent flow field and turbulent characteristics
generated by a Rushton disc turbine with the improved inner-outer iterative procedure. The
predicted turbulent flow is compared with experimental data and the simulation by the
standard κ-ε turbulence model. The anisotropic algebraic stress model is found to give
better prediction than the standard κ-e turbulence model. The predicted turbulent flow
field is in accordance to experimental data and the trend of the turbulence intensity can
be effectively reflected in the simulation. The distribution of turbulent shear rate in the
stirred tanks was simulated with the established numerical procedure.

Key words: agitated vessel, anisotropic algebraic stress model, numerical simulation, inner-outer iteration, Rushton turbine

摘要： In accordance to the anisotropic feature of turbulent flow, an anisotropic algebraic stress
model is adopted to predict the turbulent flow field and turbulent characteristics
generated by a Rushton disc turbine with the improved inner-outer iterative procedure. The
predicted turbulent flow is compared with experimental data and the simulation by the
standard κ-ε turbulence model. The anisotropic algebraic stress model is found to give
better prediction than the standard κ-e turbulence model. The predicted turbulent flow
field is in accordance to experimental data and the trend of the turbulence intensity can
be effectively reflected in the simulation. The distribution of turbulent shear rate in the
stirred tanks was simulated with the established numerical procedure.

关键词: agitated vessel;anisotropic algebraic stress model;numerical simulation;inner-outer iteration;Rushton turbine

SUN Haiyan, WANG Weijing, MAO Zaisha. Numerical Simulation of the Whole Three-Dimensional Flow in a Stirred Tank with Anisotropic
Algebraic Stress Model[J]. .

孙海燕, 王卫京, 毛在砂. 用各向异性代数应力模型数值模拟搅拌槽中的三维全流场[J]. CIESC Journal.

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Numerical Simulation of the Whole Three-Dimensional Flow in a Stirred Tank with Anisotropic
Algebraic Stress Model

用各向异性代数应力模型数值模拟搅拌槽中的三维全流场

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