鉛直面上の体積力対流の波流および乱流膜状凝縮 : 局所熱伝達係数の整理式

概要

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The experimental study of body forced convection film condensation of pure vapor on a vertical surface (l=2980 mm) is presented. CFC 11, CFC 113 and HCFC 123 are used as the working fluids. The flow patterns of condensate film are classified into laminar flow, sine wave flow, harmonic wave flow and turbulent flow. The nondimensional correlations for predicting the local heat-transfer coefficients are obtained for sine wave flow, hamonic wave flow and turbulent flow. The transition point from laminar flow to sine wave flow, the transition point from sine wave flow to harmonic wave flow and the transition point from harmonic wave flow to turbulent flow are obtained. The nondimensional correlations for combined harmonic wave and turbulent flow are also obtained.
社団法人日本機械学会の論文
1994-09-25