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Mixed Convection Heat Transfer of Water-Alumina Nanofluid in an Inclined and Baffled C-Shaped Enclosure | ||
| Journal of Heat and Mass Transfer Research | ||
| مقاله 49، دوره 5، شماره 2 - شماره پیاپی 10، بهمن 2018، صفحه 129-138 اصل مقاله (1.32 M) | ||
| نوع مقاله: Full Length Research Article | ||
| شناسه دیجیتال (DOI): 10.22075/jhmtr.2018.13390.1196 | ||
| نویسندگان | ||
| Morteza Bayareh* 1؛ Amin Kianfar2؛ Abbas Kasaeipoor3 | ||
| 1Mechanical Engineering, Shahrekord University, Shahrekord, Iran | ||
| 2Department of Mechanical Engineering, Lamerd Branch, Islamic Azad University, Lamerd, Iran | ||
| 3cDepartment of Mechanical Engineering, Faculty of Engineering, University of Isfahan, Isfahan 81746-73441, Iran. | ||
| تاریخ دریافت: 26 آذر 1396، تاریخ بازنگری: 29 اردیبهشت 1397، تاریخ پذیرش: 04 خرداد 1397 | ||
| چکیده | ||
| In this paper, mixed convection heat transfer of alumina-water nanofluid in an inclined and baffled c-shape enclosure is studied. It is assumed that the flow is laminar and steady. There is no energy production, energy storage and viscous heat dissipation. Also, the nanofluid is considered as a continuous, Newtonian and incompressible fluid. Governing equations are discretised by finite-difference method and solved by SIMPLE algorithm simultaneously. Reynolds number (10 < Re < 1000), rotation angle of enclosure ( < α < ), length of baffle (0.1 < Bf < 0.4), Richardson number (0.1 < Ri < 100) are changed. In addition, volume percent of nanoparticles are changed in the range of 0 < φ < 0.06. The results show that the Nusselt number increases with increase of Reynolds number. Adding nanoparticles always results in cooling enclosure. At high Reynolds number, increase of nanoparticles has less effect on the heat transfer rate. Furthermore, heat transfer increases with the Richardson number, the enclosure angle and the length of baffle. | ||
| کلیدواژه‌ها | ||
| Mixed convection؛ C-shaped enclosure؛ Nanofluid؛ Baffle | ||
| مراجع | ||
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