水分の移動を伴う垂直平板の自然対流熱伝達

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タイトル別名
  • Heat Transfer by Laminar Free-Convection on a Vertical Flat Plate Being Accompanied by Vaper Transfer
  • スイブン ノ イドウ オ トモナウ スイチョク ヘイバン ノ シゼン タイリュウ ネツ デンタツ

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The problem of laminar free convection, being accompanied by vapour transfer, on a flat plate placed vertically in humid air is treated, on the assumption that all properties of fluid are independent of the temperature. By means of the successive method, the equations of motion, energy and diffusion are solved. As practical examples, calculation is carried out at the conditions where the Prandtl number is a constant, 0.72, and the Schmidt number takes three respective values, 0.5, 0.6 and 0.72. Both θ'(0) and M'(0) are approximately proportional to Cvs-Cvw/Cvs-Cvw· where θ'(0) and M'(0) are gradients of temperature and concentration at the wall, respective1y, Cw the density of humid air at the wall, Cvs, Cvw, the concentrations of vapour at an infinite distance and at the wall, respectively.

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