Features of boiling on an artificial surface — Bubble formation, wall temperature fluctuation and nucleation site interaction
Features of boiling on an artificial surface — Bubble formation, wall temperature fluctuation and nucleation site interaction
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人造表面沸腾的特征——气泡形成、壁温波动和成核位点相互作用
DOI：
10.1007/s11630-002-0059-4
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发表时间：
2002
影响因子：
2.5
通讯作者：
M. Yokota
中科院分区：
文献类型：
--
作者：
M. Shoji;R. Mosdorf;L. Zhang;Y. Takagi;K. Yasui;M. Yokota
应用人造表面来研究池沸腾特征，包括气泡行为、表面温度波动、传热特性和成核位点相互作用。通过三组实验研究了空腔形状、空腔尺寸、空腔间距对沸腾现象的影响。实验结果表明，圆柱腔和凹腔的冒泡总体上是稳定的。空腔直径对气泡行为和温度波动的影响似乎很弱，而空腔深度的影响则不容忽视。对于两种空腔条件，气泡行为根据无因次空腔间距而表现出不同的特征。三个重要因素（热相互作用、水力相互作用、气泡聚结）控制成核位点相互作用，这些因素的竞争和主导产生了四种相互作用机制。
The artificial surfaces are applied to study the pool boiling features, including the bubble behaviors, the surface temperature fluctuation, the heat transfer characteristics and nucleate site interaction. Three sets of experiments are carried out to investigate the influences of cavity shape, cavity size, cavity spacing on the boiling phenomena. Experimental results reveal that bubbling from the cylindrical as well as reentrant cavity is generally stable. The influence of cavity diameter on the bubble behaviors and the temperature fluctuation seems very weak while the effect of cavity depth cannot be neglected. As for the two cavity conditions, the bubble behaviors show the different features depending on the dimensionless cavity spacing. Three significant factors (thermal interaction, hydraulic interaction, bubble coalescence) control the nucleation site interaction, and the competition and dominance of the factors yield four interaction regimes.