倾斜窄矩形通道中气弹运动速度

doi:10.3969/j.issn.0438-1157.2013.11.016

化工学报 ›› 2013, Vol. 64 ›› Issue (11): 4001-4007.DOI: 10.3969/j.issn.0438-1157.2013.11.016

倾斜窄矩形通道中气弹运动速度

王洋, 阎昌琪, 孙立成, 闫超星, 幸奠川

哈尔滨工程大学核安全与仿真技术国防重点学科实验室, 黑龙江哈尔滨 150001

收稿日期:2013-04-04 修回日期:2013-05-09 出版日期:2013-11-05 发布日期:2013-11-05
通讯作者: 阎昌琪
作者简介:王洋(1988-),男,博士研究生。
基金资助:
国家自然科学基金项目(51076034,11175050);中央高校基本科研业务费专项资金项目(HEUCFZ1122)。

Slug velocity in inclined narrow rectangular channel

WANG Yang, YAN Changqi, SUN Licheng, YAN Chaoxing, XING Dianchuan

National Defense Key Subject Laboratory for Nuclear Safety and Simulation Technology, Harbin Engineering University, Harbin 150001, Heilongjiang, China

Received:2013-04-04 Revised:2013-05-09 Online:2013-11-05 Published:2013-11-05
Supported by:
supported by the National Natural Science Foundation of China(51076034,11175050)and the Fundamental Research Funds for the Central Universities(HEUCFZ1122).

摘要/Abstract

摘要： 利用高速摄像系统,对4种倾角下窄矩形通道(3.25 mm×40 mm)内弹状流进行了可视化研究。实验中发现,低流速时,倾斜条件下,由于浮力的影响,气弹头部偏离管道中心,头部变尖,因而气弹运动速度加快,系数C₀随倾角增加而减小,漂移速度V₀呈相反变化趋势;高流速时,流动趋于稳定,倾角对气弹速度影响不显著,对C₀和V₀影响较小。通过实验数据评价了竖直条件下4种气弹速度计算关联式。以Froude数3.5为界,分别提出了倾斜条件下C₀和V₀计算关联式。

关键词: 窄矩形通道, 气弹速度, 倾斜, 弹状流

Abstract: Visualized experiments were conducted by using a high speed video camera system to study slug flow in a narrow rectangular channel(3.25 mm×40 mm)with four inclination angles.For low two-phase superficial velocity,due to buoyancy slug nose deviated from the channel centerline and became sharper under inclined condition,resulting in the increase of slug velocity.The coefficient C₀ decreased with increasing inclination angle,while drift velocity V₀ varied inversely.For the case of high two-phase superficial velocity,the influence of inclination angle on slug velocity weakened with the flow tending to be stable,as was the same to C₀ and V₀.Four classical correlations for calculating slug velocity were evaluated against the experimental data.The correlations of C₀ and V₀ were given according to the threshold of 3.5 of Froude number.

Key words: narrow rectangular channel, slug velocity, inclination, slug flow

中图分类号:

TL334

王洋, 阎昌琪, 孙立成, 闫超星, 幸奠川. 倾斜窄矩形通道中气弹运动速度[J]. 化工学报, 2013, 64(11): 4001-4007.

WANG Yang, YAN Changqi, SUN Licheng, YAN Chaoxing, XING Dianchuan. Slug velocity in inclined narrow rectangular channel[J]. CIESC Journal, 2013, 64(11): 4001-4007.

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倾斜窄矩形通道中气弹运动速度

Slug velocity in inclined narrow rectangular channel

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