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