RT Journal Article
ID 00d89e717192ca3e
A1 Ali, Nasir
A1 Nazeer, Mubbashar
A1 Javed, Tariq
A1 Siddiqui, M. A.
T1 BUOYANCY-DRIVEN CAVITY FLOW OF A MICROPOLAR FLUID WITH VARIABLY HEATED BOTTOM WALL
JF Heat Transfer Research
JO HTR
YR 2018
FD 2018-03-23
VO 49
IS 5
SP 457
OP 481
K1 micropolar fluid
K1 two-dimensional cavity
K1 heat transfer
K1 finite element scheme
AB This article explores the buoyancy-driven flow of a micropolar fluid in a square conduit. The flow is assumed to be steady, incompressible, and fully developed. The coupling between the energy and momentum equations is achieved using the Boussinesq approximation. A finite element scheme based on penalty formulation is implemented to simulate the governing equations. The simulations are carried out for both cases of constant and variable heating of the bottom wall. The contours of the temperature field and stream function are plotted for several values of involved physical parameters, namely, the Rayleigh number, Prandtl number, and micropolar parameters. The effects of these pertinent parameters on the average and local Nusselt numbers are also quantified. The study shows that the strength of recirculating zones decreases with increase in the micropolar parameter. Moreover, the expansion of isotherms toward the top boundary surface of an enclosure is noted
for greater values of the micropolar parameter. The local and average Nusselt numbers decrease with change in the behavior of the fluid from Newtonian to micropolar.
PB Begell House
LK http://dl.begellhouse.com/journals/46784ef93dddff27,0e046ef070ca09b9,00d89e717192ca3e.html