TY - JOUR
T1 - Free convection flow in a microchannel filled with porous material having temperature-dependent thermal conductivity
AU - Hamza, Muhammed Murtala
AU - Abubakar, Auwal Bala
AU - Panyanak, Bancha
AU - Pakkaranang, Nuttapol
N1 - Publisher Copyright:
© 2022 John Wiley & Sons, Ltd.
PY - 2022
Y1 - 2022
N2 - This paper investigates the impact of Darcy number and variable thermal conductivity on MHD free convective heat transfer in a microchannel. Approximate solution of the problem is obtained by using semi-analytical method. Most of the fluid physical properties associated with flow are displayed, analyzed, and discussed. From the results, it is found that Darcy number reduces fluid velocity in case of asymmetric heating of the microchannel at the lower plate while fluid velocity is enhanced at the upper plate. It is also observed that variable thermal conductivity enhances fluid velocity in case of both asymmetric and symmetric heating of the microchannel bounding walls. It is further seen that there is point of intersection around the center of the microchannel when both variable thermal conductivity and Darcy number are increased.
AB - This paper investigates the impact of Darcy number and variable thermal conductivity on MHD free convective heat transfer in a microchannel. Approximate solution of the problem is obtained by using semi-analytical method. Most of the fluid physical properties associated with flow are displayed, analyzed, and discussed. From the results, it is found that Darcy number reduces fluid velocity in case of asymmetric heating of the microchannel at the lower plate while fluid velocity is enhanced at the upper plate. It is also observed that variable thermal conductivity enhances fluid velocity in case of both asymmetric and symmetric heating of the microchannel bounding walls. It is further seen that there is point of intersection around the center of the microchannel when both variable thermal conductivity and Darcy number are increased.
KW - free convection flow
KW - microchannel
KW - porous material
KW - symmetric/asymmetric heating
KW - temperature-dependent thermal conductivity
UR - http://www.scopus.com/inward/record.url?scp=85125071125&partnerID=8YFLogxK
U2 - 10.1002/mma.8148
DO - 10.1002/mma.8148
M3 - Article
AN - SCOPUS:85125071125
SN - 0170-4214
JO - Mathematical Methods in the Applied Sciences
JF - Mathematical Methods in the Applied Sciences
ER -