RT Journal Article
ID 217db04803113064
A1 Niazmand, Hamid
A1 Rahimi, Behnam 
T1 MIXED CONVECTIVE RAREFIED FLOWS WITH SYMMETRIC AND ASYMMETRIC HEATED WALLS
JF Computational Thermal Sciences: An International Journal
JO CTS
YR 2013
FD 2013-05-03
VO 5
IS 4
SP 261
OP 272
K1 microchannel
K1 mixed convection
K1 numerical simulation
K1 slip/jump
K1 buoyancy force
AB Mixed convection gaseous slip flows in an open-ended vertical parallel-plate channel with symmetric and asymmetric wall temperatures are numerically investigated. Buoyancy effects on developing and fully developed solutions are studied by solving the Navier-Stokes and energy equations using a control volume technique and SIMPLE algorithm. The velocity and temperature fields are examined for different values of Knudsen number, mixed convection parameter, and temperature ratio. It is found that decreasing temperature ratio leads to higher velocity slip along this wall. Moreover, the friction coefficient increases with increasing mixed convection parameter on the hot wall, whereas it decreases on the cold wall. It is also noticed that with an increase in mixed convection parameter, the net heat absorbed by the fluid becomes higher and the Nusselt number increases. Furthermore, the centerline pressure drops in the early sections of the channel due to the dominance of the viscous effects; however, it builds up later along the channel, when the buoyancy forces gain weight and play the dominant role.
PB Begell House
LK https://www.dl.begellhouse.com/journals/648192910890cd0e,3c7f7b6d7708cf39,217db04803113064.html