Multimode analysis of bubble growth in saturated film boiling

Multimode analysis of bubble growth in saturated film boiling
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饱和膜沸腾气泡生长的多模态分析

DOI：
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发表时间：
2008
期刊：
影响因子：
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通讯作者：
S. Welch
S. Welch
中科院分区：
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文献类型：
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作者：
G. Tomar;G. Biswas;A. Sharma;S. Welch

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薄膜沸腾中的气泡形成位点是液-汽界面处发生不稳定的节点。我们对依赖于时间的基态进行线性稳定性分析，考虑到蒸发导致的薄膜生长，以确定最主要的波长。选择 Berenson [ASME J. Heat Transfer83, 351 (1961)] 预测的波长五倍的域尺寸和具有波数谱的初始液-汽界面轮廓，我们进行数值模拟以解决波数衰减和增长对气泡间距的影响。使用耦合水平集和流体体积算法进行了数值模拟。
The bubble formation sites in film boiling are the nodes of the instability occurring at the liquid-vapor interface. We perform a linear stability analysis with a time dependent base state, accounting for the growth of the film due to evaporation, in order to identify the most dominant wavelength. Choosing a domain size of five times the wavelength predicted by Berenson [ASME J. Heat Transfer83, 351 (1961)] and an initial liquid-vapor interface profile having a spectrum of wave numbers, we perform numerical simulations to address the effects of decay and growth of the wave numbers on bubble spacing. Numerical simulations have been performed using a coupled level set and volume of fluid algorithm.