Mixed Convection of Bingham Fluid in a Two Sided Lid-Driven Cavity Heated From Below
Author(s) -
Toufik Benmalek,
Ferhat Souidi,
Mourad Moderres,
Bilal Yassad,
Saïd Abboudi
Publication year - 2019
Publication title -
fluid dynamics and materials processing
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.32
H-Index - 16
eISSN - 1555-2578
pISSN - 1555-256X
DOI - 10.32604/fdmp.2019.04496
Subject(s) - bingham plastic , combined forced and natural convection , non newtonian fluid , mechanics , convection , newtonian fluid , square (algebra) , finite volume method , natural convection , materials science , geology , physics , thermodynamics , mathematics , geometry , rheology
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 enhanced 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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