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The optimization of inlet and outlet port locations of a vented square cavity | ||
| Journal of Heat and Mass Transfer Research | ||
| مقاله 5، دوره 1، شماره 1، مرداد 2014، صفحه 35-45 اصل مقاله (910.33 K) | ||
| نوع مقاله: Full Length Research Article | ||
| شناسه دیجیتال (DOI): 10.22075/jhmtr.2014.152 | ||
| نویسندگان | ||
| Taher Armaghani* 1؛ Farhad Talebi2؛ Amir Houshang Mahmoudi2؛ M Farzaneh Gord3 | ||
| 1Islamic azad university Mahdishahr branch, Department of engineering, Mahdishahr, Iran. | ||
| 2Department of mechanical engineering, Semnan University, Semnan, Iran | ||
| 3Department of mechanical engineering, Shahrood University of Technology, Shahrood, Iran | ||
| تاریخ دریافت: 29 تیر 1392، تاریخ بازنگری: 30 دی 1392، تاریخ پذیرش: 11 اسفند 1392 | ||
| چکیده | ||
| In this study, mixed convection heat transfer and local and global entropy generation in a ventilated square cavity have been investigated numerically. The natural convection effect is achieved by a constant heat flux imposed at the bottom wall and cooled by injecting a cold follow. In order to investigate the effect of port location, four different placement configurations of the inlet and outlet ports are studied. In each case, external flow enters into the cavity through an inlet port in the left side of the cavity and exits from the opposite side. The other boundaries are assumed adiabatic. The cavity is subjected to laminar flow of water. The investigation has been carried out for the Re=1000, and the Richardson number with the range of 0.0001(Global Entropy Generation), Heat Transfer Irreversibility (HTI) and Fluid Friction Irreversibility (FFI) are calculated and compared. Then, the optimum inlet/outlet configuration has been selected based on the minimum GEG and the maximum heat transfer. | ||
| کلیدواژهها | ||
| Vented square cavity؛ Entropy Generation؛ Heat transfer؛ Irreversibility؛ Fluid friction irreversibility | ||
| مراجع | ||
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