波纹壁面上流动液膜涡的生成特性

doi:10.11949/j.issn.0438-1157.20160571

化工学报 ›› 2016, Vol. 67 ›› Issue (10): 4135-4145.DOI: 10.11949/j.issn.0438-1157.20160571

波纹壁面上流动液膜涡的生成特性

刘梅^1,2, 刘秋升¹, 吴正人¹, 王松岭¹, 宋朝匣¹

1 华北电力大学能源动力与机械工程学院, 河北保定 071003;
2 华北电力大学经济管理系, 河北保定 071003

收稿日期:2016-04-29 修回日期:2016-07-08 出版日期:2016-10-05 发布日期:2016-10-05
通讯作者: 吴正人
基金资助:
高等学校博士学科点专项科研基金项目（20110036110009）；河北省自然科学基金项目（E2016502088）。

Vortex formation characteristics of flow liquid film on corrugated plate

LIU Mei^1,2, LIU Qiusheng¹, WU Zhengren¹, WANG Songling¹, SONG Zhaoxia¹

1 School of Energy Power and Mechanical Engineering, North China Electric Power University, Baoding 071003, Hebei, China;
2 Department of Economic Management, North China Electric Power University, Baoding 071003, Hebei, China

Received:2016-04-29 Revised:2016-07-08 Online:2016-10-05 Published:2016-10-05
Supported by:
supported by the Specialized Research Fund for the Doctoral Program of Higher Education of China (20110036110009) and the Natural Science Foundation of Hebei Province (E2016502088).

摘要/Abstract

摘要：

针对液膜在非平整壁面上流动过程中生成涡的现象，基于VOF方法，采用FLUENT软件模拟了三维波纹壁面上的液膜流动。研究了波纹结构内涡结构的演化过程，分析入口Reynolds数、波纹结构、壁面倾角、流体黏度和表面张力对波纹结构内涡结构的影响。结果表明：随着时间的演化，涡的大小和形状不断变化，最终达到稳定。且涡结构变化对自由液面的波动影响显著。较低Re和波形度时，波纹结构内不易形成涡，随着Re和波形度增大，产生涡且涡呈增大趋势，涡的形态也随之改变，自由液面位置升高，其相位滞后于波纹壁面。当壁面倾角改变时，波纹结构内的涡特性变化较大，液膜厚度略有增加，而自由液面相位不明显。表面张力对涡结构有显著影响，液膜流动过程中不容忽视。流体黏性改变时，波纹结构内涡的大小和形状无明显的变化。黏度变小和忽略表面张力时，液膜厚度均变薄。以上结果为工业设备生产、运行和设计提供了一定参考依据。

关键词: 气液两相流, 波纹壁面, 涡结构, 数值模拟, 影响因素, 计算流体力学

Abstract:

The liquid film flow on the corrugated plate is common in the industrial field. But the characteristics of liquid film flow on the corrugated plate are pretty complicated. Thus, based on the VOF method, the vortex characteristics of the three-dimensional liquid film flow on the inclined corrugated plate are simulated by using FLUENT software. The evolution of vortex structure with time is studied, and the influence of inlet Reynolds number, waviness, wall inclined angle, fluid viscosity and surface tension on the vortex structure in corrugated plate structure is investigated. The results show that the size and shape of vortex are constantly changing with the time evolution and ultimately achieve stability. The change of vortex structure has significant influence on the fluctuation of free surface. With smaller Re and waviness, the vortex is not easy to form in the corrugated structure. With the increase of Re and waviness, the vortex is produced and its size is increasing, and the morphology of the vortex is changed. Meanwhile, the position of the free surface is increased and there is a phase lag compared with the wave wall. When the wall inclination angle is altered, the vortex characteristics in the corrugated structure change greatly. But the phase of the free surface and the thickness of the liquid film vary slightly. Surface tension has a significant effect on the vortex structure, and it cannot be ignored in the numerical simulation of liquid film flow. Nevertheless, when the fluid viscosity is changed, there is no significant change in the size and shape of the vortex in the corrugated structure. But if the viscosity is small and the surface tension is neglected, the thickness of the liquid film becomes thin. These conclusions are very important to predict and understand the characteristics of liquid film flow in industrial field.

Key words: gas-liquid flow, corrugated plate, vortex structure, numerical simulation, influence factors, CFD

中图分类号:

TQ021.1

刘梅, 刘秋升, 吴正人, 王松岭, 宋朝匣. 波纹壁面上流动液膜涡的生成特性[J]. 化工学报, 2016, 67(10): 4135-4145.

LIU Mei, LIU Qiusheng, WU Zhengren, WANG Songling, SONG Zhaoxia. Vortex formation characteristics of flow liquid film on corrugated plate[J]. CIESC Journal, 2016, 67(10): 4135-4145.

参考文献 20

[1]	朴明日, 胡国辉. 壁面结构对非定常薄膜流动表面波特性的影响[J]. 计算物理, 2011, 28(6):843-852. PAK M I, HU G H. Influences of wall topography on unsteady free surface waves in film flow[J]. Chinese Journal of Computational Physics, 2011, 28(6):843-852.
[2]	MIYARA A. Numerical simulation of wavy liquid film flowing down on a vertical wall and an inclined wall[J]. Int. J. Therm. Sci., 2000, 39(9):1015-1027.
[3]	吴正人. 非平整底部上非线性波的生成演化规律研究[D]. 保定:华北电力大学, 2007. WU Z R. Study on the generation and evolution of the nonlinear wave on uneven bottoms[D]. Baoding:North China Electric Power University, 2007.
[4]	PRASHANT V, OMAR K M, GEOFFREY F H, et al. Thin film flow over structured packings at moderate Reynolds numbers[J]. Chemical Engineering Science, 2005, 60(7):1965-1975.
[5]	ZHAO L, CERRO R.Experimental characterization of viscous films flows over complex surface[J]. International Journal of Multiphase Flow, 1992, 18(14):495-516.
[6]	WIERSCHEM A, SCHOLLE M, AKSEL N. Vortices in film flow over strongly undulated bottom profiles at low Reynolds numbers[J]. Physics of Fluids, 2003, 15(2):426-435.
[7]	WIERSCHEM A, AKSEL N. Influence of inertia on eddies created in films creeping over strongly undulated substrates[J]. Physics of Fluids, 2004, 16(12):4566-4574.
[8]	WIERSCHEM A, POLLAK T, HEINING C, et al. Suppression of eddies in films over topography[J]. Physics of Fluids, 2010, 22(11):687-704.
[9]	ARGYRIADI K, VLACHOGIANNIS M, BONTOZOGLOU V. Experimental study of inclined film flow along periodic corrugations:the effect of wall steepness[J]. Physics of Fluids, 2006, 18(1):302-309.
[10]	吴正人, 刘梅, 刘秋升, 等. 倾斜波动壁面上液膜表面波演化特性的影响[J]. 物理学报, 2015, 64(24):244701. WU Z R, LIU M, LIU Q S, et al. Influence of the inclined waving wall on the surface wave evolution of liquid film[J]. Acta Physica Sinica, 2015, 64(24):244701.
[11]	刘梅, 王松岭, 吴正人. 非平整基底上受热液膜流动稳定性研究[J]. 物理学报, 2014, 63(15):154702. LIU M, WANG S L, WU Z R. Stability of heated liquid film on an uneven substrate[J]. Acta Physica Sinica, 2014, 63(15):154702.
[12]	PAK M I, HU G H. Numerical investigations on vortical structures of viscous film flows along periodic rectangular corrugations[J]. International Journal of Multiphase Flow, 2011, 37(4):369-379.
[13]	SCHOLLE M, HAAS A, AKSEL N, et al. Competing geometric and inertial effects on local flow structure in thick gravity-driven fluid films[J]. Physics of Fluids, 2008, 20(12):397-408.
[14]	TONG Z Y, HONG W R, MAREK A, et al. Effect of triangular corrugations on dynamic characteristics of film flow[J]. Procedia Engineering, 2012, 42:540-554.
[15]	TONG Z Y, MAREK A, HONG W R, et al. Experimental and numerical investigation on gravity-driven film flow over triangular corrugations[J]. Industrial & Engineering Chemistry Research, 2013, 52(45):15946-15958.
[16]	LI J, GUO Y Q, TONG Z Y, et al. Comparative study on the characteristics of film flow with different corrugation plates[J]. Microgravity Science and Technology, 2015, 27(3):171-179.
[17]	HAROUN Y, RAYNAL L, LEGENDRE D. Mass transfer and liquid hold-up determination in structured packing by CFD[J]. Chemical Engineering Science, 2012, 75(25):342-348.
[18]	李相鹏, 陈冰冰, 高增梁. 规整填料表面液膜流动特性的数值模拟[J]. 化工学报, 2013, 64(6):1925-1933. LI X P, CHEN B B, GAO Z L. Numerical simulation on hydraulic characteristics of liquid film on structured packing surface[J]. CIESC Journal, 2013, 64(6):1925-1933.
[19]	SHETTY S, CERRO R L. Flow of a thin film over a periodic surface[J]. International Journal of Multiphase Flow, 1993, 19(6):1013-1027.
[20]	谷芳, 刘春江, 袁希钢, 等. 倾斜波纹板上液膜流动的CFD研究[J]. 化工学报, 2005, 56(3):462-467. GU F, LIU C J, YUAN X G, et al. CFD simulation of liquid film flow on inclined wavy plates surface[J]. Journal of Chemical Industry and Engineering (China), 2005, 56(3):462-467.

波纹壁面上流动液膜涡的生成特性

Vortex formation characteristics of flow liquid film on corrugated plate

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