RT Journal Article
ID 1c290cc13897bb53
A1 Bahlaoui, Ahmed
A1 Raji, Abdelghani
A1 Hasnaoui, Mohammed
A1 Naimi, Mohamed
T1 MIXED CONVECTION IN A NANOFLUID-FILLED VENTED RECTANGULAR CAVITY: SUCTION AND INJECTION HEAT PERFORMANCE
JF Computational Thermal Sciences: An International Journal
JO CTS
YR 2014
FD 2014-06-18
VO 6
IS 2
SP 129
OP 142
K1 Mixed convection
K1 nanofluid
K1 suction
K1 injection
K1 vented cavity
K1 numerical study
AB In this paper, we examine mixed convection in a horizontal ventilated enclosure filled with water−Al2O3 nanofluid. The mixed convection effect is attained by heating the bottom wall at a constant hot temperature and cooling the cavity through an injected or sucked imposed flow. The flow enters the enclosure through an opening located in the lower part of the left vertical wall and leaves from the upper part of the right vertical wall. The remaining boundaries are considered adiabatic. The effects of some pertinent parameters such as the Reynolds number, 200 ≤ Re ≤ 5000, and the solid volume fraction of the nanoparticles, 0 ≤ φ ≤ 0.1, on flow and thermal fields and the resulting heat transfer are examined for the two ventilation modes (injection and suction). The obtained results show that the presence of nanoparticles contributes to enhancement of the heat transfer and an increase in the mean temperature within the cavity. In addition, the Reynolds number and the mode of imposed external flow affect the dynamical and thermal flow structures. Also, it was found that the fluid suction mode favors the heat transfer in comparison with the case of the fluid injection mode.
PB Begell House
LK https://www.dl.begellhouse.com/journals/648192910890cd0e,7fa55e471724fdbd,1c290cc13897bb53.html