CFD Simulation of Hydrodynamic Characteristics in Stirred Reactors Equipped with Standard Rushton or 45°-Upward PBT Impeller

Abstract

Abstract: The hydrodynamic characteristics generated by the standard Rushton or 45°-upward pitched-
blade-turbine (PBT) impellers in a baffled reactor are numerically simulated for different
off-bottom clearances (C = 1/3Hand 1/2H) and agitator speeds (100, 150, 200, 250 and
300r.min-1) by using FLUENT code (Version 5.4). Theresults are compared with the
experimental and simulated data in the published papers and good agreement isobserved. The
shapes of the profile of mean velocities seem independent to the speed of agitators under
theexperimental conditions (100-300 r.min-1).

Key words: computational fluid dynamics, hydrodynamics, stirred tank, sliding mesh method

摘要： The hydrodynamic characteristics generated by the standard Rushton or 45°-upward pitched-
blade-turbine (PBT) impellers in a baffled reactor are numerically simulated for different
off-bottom clearances (C = 1/3Hand 1/2H) and agitator speeds (100, 150, 200, 250 and
300r.min-1) by using FLUENT code (Version 5.4). Theresults are compared with the
experimental and simulated data in the published papers and good agreement isobserved. The
shapes of the profile of mean velocities seem independent to the speed of agitators under
theexperimental conditions (100-300 r.min-1).

关键词: computational fluid dynamics;hydrodynamics;stirred tank;sliding mesh method

WEI Zuojun, XU shimin, YUAN Yingjin, XU Songlin. CFD Simulation of Hydrodynamic Characteristics in Stirred Reactors Equipped with Standard
Rushton or 45°-Upward PBT Impeller[J]. .

未作君, 徐世民, 元英进, 许松林. 采用CFD模拟装备标准透平桨或45°-斜向上桨搅拌反应器内部流体力学特性[J]. CIESC Journal.

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CFD Simulation of Hydrodynamic Characteristics in Stirred Reactors Equipped with Standard
Rushton or 45°-Upward PBT Impeller

采用CFD模拟装备标准透平桨或45°-斜向上桨搅拌反应器内部流体力学特性

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