Interfacial area and nucleation site density in boiling systems
Interfacial area and nucleation site density in boiling systems
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DOI：
10.1016/s0017-9310(83)80069-6
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发表时间：
1983-09
影响因子：
5.2
通讯作者：
G. Kocamustafaogullari;M. Ishii
中科院分区：
文献类型：
--
作者：
G. Kocamustafaogullari;M. Ishii
数密度是影响泡状两相流系统中界面浓度的重要参数之一。从这个配方中，它变得明显，在加热通道表面上的活性成核位点密度是在预测的气泡数密度的关键参数。建立了池沸腾中活性核密度的本构关系，并将其推广到强制对流核态沸腾。由本构关系预测的活性成核位点密度与文献中的直接测量结果比较吻合。
The number density, which is one of the most important parameters affecting the interfacial area concentration in the bubbly two-phase flow system, is formulated in terms of the differential transport equation. From this formulation it becomes apparent that the active nucleation site density on a heated channel surface is the key parameter in the prediction of the bubble number density. A constitutive relation for active nucleation site density is developed in pool boiling and extended to forced convective nucleate boiling. The active nucleation site densities predicted by this constitutive relation are in relatively good agreement with direct measurements available in the literature.