Numerical Investigation of Internal Turbulent Flow Generated by a Flat-Blade Turbine and a Pitched-Blade Turbine in a Vessel Tank

H. Kchaou(1), Z. Driss(2*), G. Bouzgarrou(3), W. Chtourou(4), M. S. Abid(5)

(1) National School of Engineers of Sfax, Department of Mechanical Engineering, Laboratory of Electromechanical Systems, ENIS, LASEM, Tunisia
(2) National School of Engineers of Sfax, Department of Mechanical Engineering, Laboratory of Electromechanical Systems, ENIS, LASEM, Tunisia
(3) National School of Engineers of Sfax, Department of Mechanical Engineering, Laboratory of Electromechanical Systems, ENIS, LASEM, Tunisia
(4) National School of Engineers of Sfax, Department of Mechanical Engineering, Laboratory of Electromechanical Systems, ENIS, LASEM, Tunisia
(5) National School of Engineers of Sfax, Department of Mechanical Engineering, Laboratory of Electromechanical Systems, ENIS, LASEM, Tunisia
(*) Corresponding author


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Abstract


The hydrodynamic behaviours induced by a flat-blade turbine and a pitched-blade turbine in a stirred vessel were numerically predicted by considering a computational fluid dynamic model. Solutions of the Naviers-Stokes equations in conjunction with the standard k–ε turbulence model were developed using a control volume discretization method. In this paper, the result obtained by our code, such as average velocity and turbulent flow characteristics, were presented in different vessel planes. The comparison of the flow pattern has been presented to be compared with ones found by other researchers. The good agreement between the numerical results and the experimental data of agitated tank validate our proposed model.
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Keywords


CFD; 3D Modelling; Turbulent; Flow; Flat-Blade; Pitched-Blade; Turbine

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References


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