Dissolution of Multicomponent Bubbles
Dissolution of Multicomponent Bubbles
复制标题
多组分气泡的溶解
DOI：
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发表时间：
1980
期刊：
影响因子：
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通讯作者：
R. Subramanian
中科院分区：
文献类型：
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作者：
M. Weinberg;R. Subramanian
本文研究了玻璃熔体中孤立的、静止的、多组分气泡的行为。相关的质量传输方程制定和计算的情况下，两个扩散气体使用准静态模型和精确的质量传输方程的数值解进行。从这两种方法得到的结果进行了比较。控制气泡溶解或增长的因素，其起源是热力学和动力学的。气泡长时间增长或收缩的趋势由偏离整体平衡控制，而短时间气泡动力学可能由动力学效应主导。由于这些双重影响的存在，气泡半径对时间的函数依赖性出现最大值和/或最小值。
The behavior of an isolated, stationary, multicomponent gas bubble in a glassmelt containing several dissolved gases is considered. The relevant mass-transport equations are formulated and calculations are performed for the case of two diffusing gases using a quasi-stationary model and a numerical solution of the exact mass-transfer equations. The results obtained from these two approaches are compared. The factors which govern the dissolution or growth of a bubble are thermodynamic and kinetic in origin. The tendency of a bubble to grow or shrink at long times is controlled by departure from overall equilibrium, whereas the short-time bubble dynamics may be dominated by kinetic effects. As a result of the existence of these dual influences, maxima and/or minima occur in the functional dependence of the bubble radius on time.