油冷却管の熱交換の実験

概要

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Our object is to perform an exact experiment, in accordance with my own similarity, on oil-cooling of laminar flow in the circular pipe with constant temperature. Here, the similarity is that the mean temperature θ_m of passed flow oil depends not only on G_z=Wc/kL but also on s'=(t_i-t_w)/(t_i-t_∞) and K=ω/R (t_i-t_∞), and these are dimensionless quantities. We have carried out a series of experement on θ_m to G_z under the condition that s' and K have been kept at constant values. And we have varied the values of s' and K at each series of experiment by changing oil or temperature ranges. As the result of our experiments we have made sure that curves of θ_m to G_z are distinguished from the Nusselt's curve and separates with one another by the values of s' or K, and so it can be recognized that my similarity is right.
社団法人日本機械学会の論文
1958-12-25