气泡初始尺寸对泡-弹状流型转换的影响

工程热物理学报 , 2005, 26(5): 793-795.

1.中国科学院力学研究所国家微重力实验室,北京,100080

基金项目: 中国科学院资助项目(10202025;10432060) 中国科学院知识创新工程项目(KJCX2-SW-L05)

INFLUENCE OF BUBBLE INITIAL SIZE ON BUBBLE-TO-SLUG TRANSITION

本文对气液两相泡状流向弹状流转换的机制进行了分析,认为气泡合并是影响该流型转换的主要机制,并据此用随机数值模拟方法,对气泡初始尺寸对泡状流向弹状流转换的影响进行了研究.计算结果表明,无量纲气泡碰撞率是一条通用曲线,根据该曲线可以确定气泡初始尺寸产生影响的区域及其大小,与实验结果的比较令人满意.

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