円管内気液成層流の凍結熱伝達

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This paper describes the experimental results of the characteristics of the freezing heat transfer of layered air-water flow in a circular tube, in which cooled air and water co-flow. The experiments were carried out under a variety of conditions of water velocity, water temperature, tube-wall temperature, and air temperature. Special attention was focused on photographic visual observations of the developing ice layer along the tube wall. Two different regions characterizing the ice formation were observed, one of which was the freeze-off region, and the other was the steady-state region. It was found that the criterion between the regions was obtained by the equation θ_c = 0.192Re^<0.35>_w. The onset of freeze-off was also found to be predicted by the equation F_o = 0.743Re^<0.14>_wRe^<^-0.03>_aθ^<-1.01>_c.
一般社団法人日本機械学会の論文
1988-03-25