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竖直管静止与流动液体中弹状气泡运动特性分析

发表时间:2009-06-30  浏览量:1814  下载量:817
全部作者: 王鸿雁,阎昌琪,曹夏昕,王文博
作者单位: 哈尔滨工程大学核科学与技术学院;哈尔滨市动力区创业中心
摘 要: 对静止液体中弹状气泡的运动规律与压差波动曲线的关系进行解释说明,分析了入口压力变化对弹状气泡上升速度的影响;在流动状态下,分析了液体流量和气体流量对弹状气泡上升速度的影响。结果表明:在静止液体中,弹状气泡的上升速度不受入口压力大小的影响;在湍流流动状态下,弹状气泡上升速度随气液两相混合流速的增加而增大。在此基础上,给出湍流流动状态下弹状气泡上升速度关系式,并与传统经验公式进行了对比,发现二者拟合较好。
关 键 词: 核动力工程;竖直管;弹状流;静止流体;流动流体;运动特性
Title: Analysis of flow characteristics of slug bubble in stagnant and �flowing liquid in vertical tube
Author: WANG Hongyan, YAN Changqi, CAO Xiaxin, WANG Wenbo
Organization: College of Nuclear Science and Technology, Harbin Engineering University;Business Start-up Center of Dynamic Area of Harbin City
Abstract: The relation between the slug flow and the general trend of pressure signal cure in stagnant liquid was explained, and the impact of the entrance pressure on the slug bubble rise velocity was analyzed. Besides, the effect of different water and gas flow rates on slug bubble rise velocity under the flowing condition was analyzed. It was found that the different entrance pressures did not affect the slug bubble speed under the stagnant condition, and the increase of slug bubble rise velocity mainly depended on the increase of the gas-liquid two-phase mixture velocity in the turbulent state. Moreover, the slug bubble rise velocity expression was given in the turbulent flow state, which fit the empirical formula well by contrasting.�
Key words: nuclear power engineering; vertical tube; slug flow; stagnant liquid; flowing liquid; flow characteristics
发表期数: 2009年6月第12期
引用格式: 王鸿雁,阎昌琪,曹夏昕,等. 竖直管静止与流动液体中弹状气泡运动特性分析[J]. 中国科技论文在线精品论文,2009,2(12):1284-1288.
 
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