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초록·키워드
The effect of inclination on the steady, two-dimensional, laminar natural convection in rectangular enclosures with localized heating from below has been investigated numerically.
The enclosure was uniformly heated with a partial heat source at the center of the bottom wall and cooled from the upper wall while the other walls were insulated. The governing equations were solved numerically by using the ADI finite difference method with the SOR method. The computations were carrid out with air, Pr=0.733, in the Grashof number range, l×10⁴~3×10⁴, for the inclination of the enclosures was varied from 0° to 90°.
The effects of Grashof number and aspect ratio on the inclination for the transition of the flow pattern in enclosures were determined. From the results, it was found that the transition angles of the flow in the enclosures were greater in localized heating than in unifrom heating from below, and that the inclination was to strongly effect on the heat transfer and the flow pattern within the enclosure.
The enclosure was uniformly heated with a partial heat source at the center of the bottom wall and cooled from the upper wall while the other walls were insulated. The governing equations were solved numerically by using the ADI finite difference method with the SOR method. The computations were carrid out with air, Pr=0.733, in the Grashof number range, l×10⁴~3×10⁴, for the inclination of the enclosures was varied from 0° to 90°.
The effects of Grashof number and aspect ratio on the inclination for the transition of the flow pattern in enclosures were determined. From the results, it was found that the transition angles of the flow in the enclosures were greater in localized heating than in unifrom heating from below, and that the inclination was to strongly effect on the heat transfer and the flow pattern within the enclosure.
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UCI(KEPA) : I410-ECN-0101-2009-553-015262347
