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首页> 外文期刊>International Journal of Heat and Mass Transfer >Bubble lift-off size in forced convective subcooled boiling flow
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Bubble lift-off size in forced convective subcooled boiling flow

机译：强制对流过冷沸腾流中的气泡上升尺寸

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Forced convective subcooled boiling flow experiments were conducted in a BWR-scaled vertical upward annular channel. Water was used as the testing fluid, and the tests were performed at atmospheric pressure. A high-speed digital video camera was applied to capture the dynamics of the bubble nucleation process. Bubble lift-off diameters were obtained from the images for a total of 91 test conditions. A force balance analysis of a growing bubble was performed to predict the bubble lift-off size. The dimensionless form of the bubble lift-off diameter was formulated to be a function of Jacob number and Prandtl number. The proposed model agreed well with the experimental data within the averaged relative deviation of ±35.2%.
机译：在BWR标度的垂直向上环形通道中进行强制对流过冷沸腾实验。使用水作为测试流体，并且测试在大气压下进行。高速数字摄像机被用于捕获气泡成核过程的动力学。从总共91个测试条件的图像中获得气泡剥离直径。对生长中的气泡进行力平衡分析，以预测气泡的脱离尺寸。气泡剥离直径的无量纲形式被公式化为雅各布数和普朗特数的函数。提出的模型与实验数据吻合良好，平均相对偏差为±35.2％。

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