Open Access

ARTICLE

Mixed Convection of Bingham Fluid in a Two Sided Lid-Driven Cavity Heated From Below

by Toufik Benmalek¹, Ferhat Souidi¹, Mourad Moderres², Bilal Yassad¹, Said Abboudi³

1 Laboratoire de mécanique des fluides théorique et appliqué, USTHB, B.P.32, El-Alia, Bab-Ezzouar, 16111 Alger, Algérie.
2 Laboratory of Industrial Fluids, Measurements and Applications (FIMA), UDBKM, 44225, Ain Defla, Algeria.
3 Laboratoire M3MUTBM, 90010 Belfort Cedex, France.

* Corresponding Author: Mourad Moderres. Email: .

Fluid Dynamics & Materials Processing 2019, 15(2), 107-123. https://doi.org/10.32604/fdmp.2019.04496

Abstract

This study aims to analyze mixed convection in a square cavity with two moving vertical walls by finite volume method. The cavity filled with Non-Newtonian fluid of Bingham model is heated from below and cooled by the other walls. This study has been conducted for certain parameters of Reynolds number (Re=1-100), Richardson number (Ri=1-20), Prandtl number (Pr=1-500), and Bingham number has been studied from 0 to 10. The results indicate that the increase in yield stress drops the heat transfer and the flow become flatter, while increasing Reynolds number augments it. The convective transport is dominant when increasing Richardson number which leads to enhance heat transfer in the cavity for both Newtonian and Non-Newtonian fluid. A correlation of Nusselt number is given in function of different parameters.

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Keywords

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