竖直大圆管内两相流界面分布机理

doi:10.3969/j.issn.0438-1157.2012.12.011

化工学报 ›› 2012, Vol. 63 ›› Issue (12): 3812-3818.DOI: 10.3969/j.issn.0438-1157.2012.12.011

竖直大圆管内两相流界面分布机理

孙波, 孙立成, 幸奠川, 刘靖宇, 田道贵

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:2012-04-25 修回日期:2012-06-28 出版日期:2012-12-05 发布日期:2012-08-07
通讯作者: 孙波
作者简介:孙波(1987-),男,硕士研究生。
基金资助:
国家自然科学基金项目(51076034);重点实验室基金项目(HEUFN1102);中央高校科研专项基金项目(HEUCFZ1122)。

Mechanistic study on interfacial area concentration profile of vertical two-phase flow in large circular pipe

SUN Bo, SUN Licheng, XING Dianchuan, LIU Jingyu, TIAN Daogui

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

Received:2012-04-25 Revised:2012-06-28 Online:2012-12-05 Published:2012-08-07
Supported by:
supported by the National Natural Science Foundation of China(51076034),the Key Subject Laboratory Foundation(HEUFN1102)and the Research Foundation of Central University(HEUCFZ1122).

摘要/Abstract

摘要： 采用光纤探针测量方法对垂直上升管中空气-水两相泡状流界面分布特性进行了研究。实验选用的圆管直径为100 mm,气相、液相表观速度的范围分别为 0~0.1 m·s^-1和0~1.0 m·s^-1。获得了界面面积浓度(IAC)、截面含气率、气泡直径等分布规律。通过气泡的受力分析,发现升力和湍流扩散力的综合作用导致了气泡的径向运动,而且升力对径向IAC分布的影响占主导地位;当气泡直径超过临界尺寸(5.7 mm)后,升力系数变为负值,使得升力指向管中心,进而导致了IAC分布由壁峰型向核峰型分布的转变。

关键词: 界面面积浓度, 大管径, 升力

Abstract: Characteristics of interface distribution in air-water two-phase bubbly flow in a vertical pipe was experimentally investigated by using the measurement method of optical fiber probes.The inner diameter of the circular pipe was 100 mm,and superficial gas and liquid velocities ranged from 0 to 0.1 m穝^-1 and from 0 to 1.0 m穝^-1,respectively.Local distributions of the interfacial area concentration(IAC),void fraction and bubble diameter were obtained.By analyzing the forces on a bubble,it was found that lift force and turbulent dispersion force determined the radial motion of bubbles,and the former dominated the radial profile of IAC.When the bubble diameter exceeded the critical size of 5.7 mm,the distribution of IAC would change from wall peak to core peak resulting from the lift force pointing to the pipe center due to lift force coefficient changing from positive to negative.

Key words: interfacial area concentration, large diameter pipe, lift force

中图分类号:

TL334

孙波, 孙立成, 幸奠川, 刘靖宇, 田道贵. 竖直大圆管内两相流界面分布机理[J]. 化工学报, 2012, 63(12): 3812-3818.

SUN Bo, SUN Licheng, XING Dianchuan, LIU Jingyu, TIAN Daogui. Mechanistic study on interfacial area concentration profile of vertical two-phase flow in large circular pipe[J]. CIESC Journal, 2012, 63(12): 3812-3818.

参考文献 17

[1]	Akita K,Yoshida F.Bubble size,interfacial area and liquid-phase mass transfer coefficient in bubble columns[J].Industrial and Engineering Chemistry Process Design and Development,1974,13(1):84-91
[2]	Viswanathan K.Flow patterns in bubble[J].Encyclopedia of Fluid Mechanics,1985,3(1):1180-1215
[3]	Delhaye J M,Bricard P.Interfacial area in bubbly flow:experimental data and correlations[J].Nuclear Engineering and Design,1994,151(1):65-77
[4]	Hibiki T,Ishii M.Interfacial area concentration in steady fully-developed bubbly flow[J].International Journal of Heat and Mass Transfer,2001,44(18):3443-3461
[5]	Hibiki T,Ishii M.Interfacial area concentration of bubbly flow systems[J].Chemical Engineering Science,2002,57(18):3967-3977
[6]	Smith T R,Schlegel J P,Hibiki T,Ishii M.Two-phase flow structure in large diameter pipes[J].International Journal of Heat and Fluid Flow,2012,33(1):156-167
[7]	Kataoka I,Ishii M.Drift-flux model for large diameter pipe and new correlation for pool void fraction[J].International Journal of Heat and Mass Transfer,1987,30(9):1927-1939
[8]	Nierhaus T,Vanden A D,Deconinck H.Direct numerical simulation of bubbly flow in the turbulent boundary layer of a horizontal parallel plate electrochemical reactor[J].International Journal of Heat and Fluid Flow,2007,28(4):542-551
[9]	Shen X,Saito Y,Mishima K,et al.Methodological improvement of an intrusive four-sensor probe for the multi-dimensional two-phase flow measurement[J].International Journal of Multiphase Flow,2005,31(5):593-617
[10]	Revankar S T,Ishii M.Local interfacial area measurement in bubbly flow[J].International Journal of Heat and Mass Transfer,1992,35(4):913-925
[11]	Sun Bo(孙波),Sun Licheng(孙立成),Xing Dianchuan(幸奠川),et al.Distribution profile of interfacial area concentration in vertical and large circular tubes[J].CIESC Journal(化工学报),2012,63(6):1810-1815
[12]	Lucas D,Krepper E,Prasser H M.Use of models for lift,wall and turbulent dispersion forces acting on bubbles for poly-disperse flows[J].Chemical Engineering Science,2007,62(15):4146-4157
[13]	Shawkat M E,Ching C Y,Shoukri M.Bubble and liquid turbulence characteristics of bubbly flow in a large diameter vertical pipe[J].International Journal of Multiphase Flow,2008,34(8):767-785
[14]	Hibiki T,Ishii M.Lift force in bubbly flow systems[J].Chemical Engineering Science,2007,62(22):6457-6474
[15]	Legendre D,Magnaudet J.Lift force on a spherical bubble in a viscous linear shear flow[J].Journal of Fluid Mechanics,1998,368(10):81-126
[16]	Sato Y,Sekoguchi K,Sadatomi M.Momentum and heat transfer in two-phase bubble flow(Ⅰ):Theory[J].International Journal of Multiphase Flow,1981,7(2):167-177
[17]	Lopez de bertodano M.Two fluid model for two-phase turbulent jets[J].Nuclear Engineering and Design,1998,179(1):65-74

竖直大圆管内两相流界面分布机理

Mechanistic study on interfacial area concentration profile of vertical two-phase flow in large circular pipe

PDF (PC)

可视化

被引次数

摘要/Abstract

引用本文

使用本文

参考文献 17

相关文章 11

编辑推荐

Metrics

本文评价

[1]	洪瑞, 袁宝强, 杜文静. 垂直上升管内超临界二氧化碳传热恶化机理分析[J]. 化工学报, 2023, 74(8): 3309-3319.
[2]	许婉婷, 许波, 王鑫, 陈振乾. 方形微通道内超临界CO₂流动换热特性研究[J]. 化工学报, 2022, 73(4): 1534-1545.
[3]	李永帅, 郑毅, 李岚, 李新爽, 赵馨怡, 潘慧, 凌昊. 聚乙烯流化床反应器气-液-固流场中升力模型的影响研究[J]. 化工学报, 2022, 73(12): 5355-5366.
[4]	王彦红, 陆英楠, 李素芬, 东明. 周向非均匀加热水平圆管内超临界正癸烷换热特性[J]. 化工学报, 2021, 72(3): 1342-1353.
[5]	颜建国, 朱凤岭, 郭鹏程, 罗兴锜. 高热流低流速条件下超临界CO₂在小圆管内的对流传热特性[J]. 化工学报, 2019, 70(5): 1779-1787.
[6]	白万金, 徐肖肖, 吴杨杨. 低质量流速下超临界CO₂在管内冷却换热特性[J]. 化工学报, 2016, 67(4): 1244-1250.
[7]	王淑香, 张伟, 牛志愿, 徐进良. 超临界压力下CO₂在螺旋管内的混合对流换热[J]. CIESC Journal, 2013, 64(11): 3917-3926.
[8]	孙波，孙立成，幸奠川,田道贵，刘靖宇. 竖直大圆管内界面面积浓度分布特性[J]. 化工学报, 2012, 63(6): 1810-1815.
[9]	王勤辉，杨秋辉，吴学成，骆仲泱，岑可法. 多相流中颗粒旋转运动特性的研究进展 [J]. CIESC Journal, 2011, 62(9): 2381-2390.
[10]	段欣悦, 张孜博, 厉彦忠, 屠基元. 群体平衡模型对复杂气液泡状流数值模拟 [J]. 化工学报, 2011, 62(4): 928-933.
[11]	王树众, 昝元峰, 李慧君, 林宗虎. 水平油气两相流中液滴分布的衰减系数 [J]. 化工学报, 2004, 55(3): 481-484.