Shehadi, Fadi Hassan CFDTP - National Engineering School of Sfax, Tunisia , Mseddi, Mohamed CFDTP - National Engineering School of Sfax, Tunisia , Baccar, Mounir CFDTP - National Engineering School of Sfax, Tunisia

Numerical simulation of heat transfer and fluid flow in a salt gradient pond

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In this paper, transfer phenomena generated in a rectangular Salt Gradient Pond (SGP) are numerically predicted by means of CFD. The purpose of this study is to give a good knowledge of the hydrodynamic and thermal characteristics, and to optimize and control different parameters or techniques in the construction of the ponds. The pond is filled with water and salt to constitute three zones with different salinity, and heated by the bottom. The Navier-Stokes, energy and concentration equations are discretized using finite volume method, and a two-dimensional analysis of the hydrodynamic and thermal characteristics of the flow in the pond are performed. The mathematical modelling has allowed us to predict the performances of ponds by developing parametrical studies which are of paramount importance such as the NCZ zone dimension and the buoyancy ratio influences. The great impact of the salinity in the preservation of the high temperature in the bottom of the pond, and the important reduction of the phenomenon of thermal transfer by convection in the non convective zone, are also shown.

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finite volume method , heat and mass transfer , numerical simulation , salt gradient pond

Lebanese Science Journal

134