## THERMAL SCIENCE

International Scientific Journal

### Thermal Science - Online First

online first only
### NUMERICAL STUDY OF FLOW AND HEAT TRANSFER IN DIFFERENTIALLY HEATED ENCLOSURES

**ABSTRACT**

Two-dimensional laminar natural convection is studied numerically for differentially heated air-filled rectangular enclosures with adiabatic side walls and aspect ratios of 1, 2, 4 and 8. The inclination angle of the enclosure was varied from 0° to 180°, and the effect of inclination on flow field and heat transfer was investigated over the range 103 ≤ Ra ≤ 106. Correlations of average Nusselt number based on the present results are presented for horizontal and vertical cases. Large discrepancies were found among published results.

**KEYWORDS**

PAPER SUBMITTED: 2011-06-26

PAPER REVISED: 2012-01-09

PAPER ACCEPTED: 2012-01-09

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