水平仕切板を設置した垂直伝熱面の自然対流熱伝達について

概要

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Natural convective heat transfer from a vertical plate with a horizontal partition plate has been investigated experimentally. The expemiments were carried out with water, for modified Rayleigh numbers ranging from 6.0×10^7 to 10^11, and for various heights of partition plates in the range of 0-70 mm. The flow and temperature fields are visualized. The results show that the three dimensional flow appears behind the plate when the height of the partition plate, H, exceeds a certain value. The transition to turbulence is found to occur at higher values of H. The local heat transfer coefficients are measured to examine the effect of the partition plate. It is revealed that the heat transfer rates decrease in the upstream region of the partition plate when compared with those for the no partition plate. On the other hand, the heat transfer rates behind the partition plate increase significantly at high values of H.
一般社団法人日本機械学会の論文
1988-08-25