MHD natural convection in a cavity partially heated having a wavy wall and filled with Al2O3-water nanofluid
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Date
2023-04-24
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Publisher
University of Eloued جامعة الوادي
Abstract
This study focuses on the coupling of MHD natural convection in a cavity filled with Al2O3-
water nanofluid. The cavity consists of vertical walls maintained at the temperature Tc, while
the horizontal ones are adiabatic. The source is fixed at a high temperature Th and one of
vertical walls is corrugated. Ansys Fluent software based on finite volume method was used to
solve different transport equations through the use of a monophasic model. Several pertinent
parameters were considered in the present study, such as Rayleigh number (
4 5 7.68.10 Ra 3.072.10 ), Hartmann number (0 Ha 75 ), and solid volume fractions (
0 0.05 ). The influence of these parameters on heat transfer and flow structure was
analyzed by examining streamlines, isotherms, velocity and temperature profiles, and Nusselt
numbers. Based on the results obtained, we notice that heat transfer enhancement rises with
both Rayleigh number and nanoparticle volume fraction, but it decreases when Hartmann
number increases. Also, we note that the conduction heat transfer becomes significant and that
by convection becomes limited and sometimes suppressed for high values of the Hartmann
Description
Article
Keywords
MHD, Natural convection, Wavy cavity, Nanofluid, Ansys Fluent
Citation
Rahmoune ,Imene. Bougoul,Saadi . MHD natural convection in a cavity partially heated having a wavy wall and filled with Al2O3-water nanofluid . Algerian Journal of Engineering and Technology. Vo08. No 01.24/04/2023.faculty of technology. university of el oued. [visited in ../../ .]. available from [copy the link here]