自然対流膜沸騰熱伝達に関する研究 : 第1報,長い蒸気膜を有する飽和膜沸騰

概要

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A simple heat transfer model is proposed for natural-convection film boiling on long inclined flat plates in saturated liquids. The vapor film along the plate is assumed to be divided into two-dimensional laminar vapor-film units lining up along the plate. To determine the pitch of the vapor-film unit, the Kelvin-Helmholtz instability is used. The predictions by the model agree well with experimental results regarding the effects of the following parameters on the heat transfer coefficient : fluid properties, surface superheat, surface height, and surface inclination. This model is then extended for film boiling around large horizontal cylinders in saturated liquids. The model fares well in this situation too. Finally, experimental results on the interfacial behavior of saturated nitrogen along a vertical plate are compared with results from the model.
一般社団法人日本機械学会の論文
1990-05-25