Double-Diffusive Mixed Convection in a Porous Open Cavity Filled with a Nanofluid Using Buongiorno’s Model

Abstract

This work examines the steady double-diffusive mixed convection flow in a porous open cavity filled with a nanofluid using mathematical nanofluid model proposed by Buongiorno. The analysis uses a two-dimensional square cavity of size L with an inlet of size 0.2 · L in the bottom part of the left vertical wall and an outlet of the same size in the upper part of the right vertical wall. The mathematical problem is represented by non-dimensional governing equations along with the corresponding boundary conditions, which are solved numerically using a second-order accurate finite difference method. The developed algorithm has been validated by direct comparisons with previously published papers, and the results have been found to be in good agreement. Particular efforts have been focused on the effects of the key parameters on the fluid flow, heat and mass transfer characteristics. In addition, numerical results for the average Nusselt and Sherwood numbers are presented in tabular forms for various parametric conditions and discussed.

Nanofluid Transport in Porous Media: A Review

“…The results were presented for the specific case of copper nanoparticles. Sheremet et al (2015c) numerically studied the double-diffusive mixed convection in a porous cavity with one isothermal vertical wall filled with a nanofluid. Particular efforts were focused on the effects of the Rayleigh, Reynolds and usual Lewis numbers, Brownian motion, and thermophoresis parameters on flow field, temperature, contaminant, and nanoparticles volume fraction distributions, and average Nusselt and Sherwood numbers.…”

Impacts of Heat-Conducting Solid Wall and Heat-Generating Element on Free Convection of Al2O3/H2O Nanofluid in a Cavity with Open Border

“…The detailed verification of the developed computational code was conduced earlier in refs. [17][18][19][20][21].…”

“…They found that the thermal transmission combined with entropy production are enhanced with the growth of Re, Ri and nanoparticles concentration, and changed with region AR and nanoparticle types. Sheremet et al [17] analyzed mixed convective heat and mass transport inside a porous nanoliquid domain with open border under the impacts Energies 2018, 11, 3434 3 of 17 of thermophoresis and Brownian diffusion. They revealed that the average Nusselt parameter is a growing mapping of Ra and Re and a reduced mapping of Le.…”

Effects of the Caputo fractional derivatives on convective flow in wavy vented enclosures filled with a porous medium using Al2O3‐Cu hybrid nanofluids

“…The results of the present study were in very good agreement with previously published results. Sheremet et al 11 studied steady double‐diffusive mixed convection flow in a porous open cavity filled with a nanofluid using a mathematical nanofluid model proposed by Buongiorno. Also, Sheremet et al 12 studied the effect of the dimensionless time, thermal dispersion parameter, and solid volume fraction parameter of nanoparticles on fluid flow and heat transfer characteristics in a porous wavy‐walled cavity filled with a nanofluid.…”