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Non-equilibrium thermodynamic analysis of micro-layer evaporation model
Author(s): 
Pages: 283-288
Year: Issue:  4
Journal: JOURNAL OF THERMAL SCIENCE AND TECHNOLOGY

Keyword:  相变换热微层蒸发模型非平衡热力学;
Abstract: 基于非平衡热力学理论,以水的沸腾换热时的微层蒸发模型为例,采用国际上流行的IFC公式,对微层蒸发模型的汽泡内部的蒸汽温度分布进行了数值计算.结果表明,要完成微层蒸发模型中的蒸发和凝结两个相变过程,汽泡内部的蒸汽温度并非均匀的,由于汽泡的半径很小,从而导致在汽泡垂直方向上存在有极大的温度梯度,这就使得微层蒸发模型的合理性值得商榷,有必要进一步发展新的模型.
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