湍流状态下超疏水微通道阻力特性仿真研究

doi:10.16182/j.issn1004731x.joss.17-0348

系统仿真学报 ›› 2019, Vol. 31 ›› Issue (10): 2138-2145.doi: 10.16182/j.issn1004731x.joss.17-0348

湍流状态下超疏水微通道阻力特性仿真研究

李春曦, 崔庆泽, 叶学民

电站设备状态监测与控制教育部重点实验室(华北电力大学),河北保定 071003

收稿日期:2017-07-24 修回日期:2017-09-10 出版日期:2019-10-10 发布日期:2019-12-12
作者简介:李春曦(1973-),女,唐山,博士,教授,研究方向为流体力学及流体工程等; 崔庆泽(1991-),男,菏泽,硕士生,研究方向为流动减阻; 叶学民(1973-),男,邢台,博士,教授,研究方向为流体工程。
基金资助:
河北省自然科学基金项目(A2015502058)

Simulation of the Resistance of Superhydrophobic Microchannel in Turbulent Regime

Li Chunxi, Cui Qingze, Ye Xuemin

Key Lab of Condition Monitoring and Control for Power Plant Equipment of Education Minstry (North China Electric Power University), Baoding 071003, China

Received:2017-07-24 Revised:2017-09-10 Online:2019-10-10 Published:2019-12-12

摘要/Abstract

摘要： 采用VOF模型和Realizable k-ε模型对具有纵向和横向微结构的超疏水微通道在湍流下的流场进行了三维数值仿真,分析结构参数对超疏水表面阻力特性的影响。研究表明：含纵向微槽的超疏水微通道具有显著的减阻作用;随自由剪切面积比和微通道宽度增加,压降比提高,平均摩擦因子降低,减阻效果显著;随微通道高度增加,压降比减小,平均摩擦因子增大;压降比和平均摩擦因子受微槽深度影响不明显;具有横向微槽的超疏水微通道则增阻,选取合适的微槽方向是控制微通道减阻效果的的重要方面。

关键词: 结构参数, 超疏水表面, 微通道, 湍流, 阻力特性

Abstract: VOF model and the Realizable k-ε turbulent model are used to simulate the three-dimensional flow field of superhydrophobic microchannels with longitudinal and transverse microstructures in turbulent regime, the effects of structural parameters on the resistance characteristics of superhydrophobic surface are analyzed. The results show that the superhydrophobic microchannels with longitudinal microgrooves exhibit significant reductions in drag; with the increase of the free shear area ratio and the width of the microchannel, the ratio of pressure drop increases, and the average friction factor decreases, as well as the drag reduction effect is highly significant; with the increase of microchannel height, the ratio of pressure drop decreases, and the average friction factor increases; the pressure drop reduction and the average friction factor are slightly dependent on the depth of microgroove. The superhydrophobic microchannel with transverse microgrooves exhibits increasing resistance, and selecting the appropriate microgroove direction of microchannel is important to control the effect of drag reduction.

Key words: structural parameters, superhydrophobic surface, microchannel, turbulent flow, resistance characteristics

中图分类号:

李春曦, 崔庆泽, 叶学民. 湍流状态下超疏水微通道阻力特性仿真研究[J]. 系统仿真学报, 2019, 31(10): 2138-2145.

Li Chunxi, Cui Qingze, Ye Xuemin. Simulation of the Resistance of Superhydrophobic Microchannel in Turbulent Regime[J]. Journal of System Simulation, 2019, 31(10): 2138-2145.

参考文献

[1] 王鹏伟, 刘明杰, 江雷. 仿生多尺度超浸润界面材料[J]. 物理学报, 2016, 65(18): 56-78.
Wang Pengwei, Liu Mingjie, Jiang Lei.Bioinspired multiscale interfacial materials with superwettability[J]. Acta Physica Sinica, 2016, 65(18): 56-78.
[2] Feng L, Li S, Li Y, et al.Superhydrophobic surfaces: from natural to artificial[J]. Advanced Materials (S0935-9648), 2002, 14(24): 1857-1860.
[3] 宋保维, 任峰, 胡海豹, 等. 表面张力对疏水微结构表面减阻的影响[J]. 物理学报, 2014, 63(5): 0547081-0547089.
Song Baowei, Ren Feng, Hu Haibao, et al.Drag reduction on micro-structured hydrophobic surfaces due to surface tension effect[J]. Acta Physica Sinica, 2014, 63(5): 0547081-0547089.
[4] Nakajima A, Hashimoto K, Watanabe T.Recent studies on super-hydrophobic films[J]. Monatshefte für Chemie/ Chemical Monthly (S1434-4475), 2001, 132(1): 31-41.
[5] Feng L, Yang Z, Zhai J, et al.Superhydrophobicity of nanostructured carbon films in a wide range of pH values[J]. Angewandte Chemie International Edition (S1433-7851), 2003, 42(35): 4217-4220.
[6] Lauga E, Stone H A.Effective slip in pressure-driven stokes flow[J]. Journal of Fluid Mechanics (S0022-1120), 2003, 489: 55-77.
[7] Ou J, Perot B, Rothstein J P.Laminar drag reduction in microchannels using ultrahydrophobic surfaces[J]. Physics of Fluids (S1070-6631), 2004, 16(12): 4635-4643.
[8] Ou J, Rothstein J P.Direct velocity measurements of the flow past drag-reducing ultrahydrophobic surfaces[J]. Physics of Fluids (S1070-6631), 2005, 17(10): 103606.
[9] Davies J, Maynes D, Webb B W, et al.Laminar flow in a microchannel with superhydrophobic walls exhibiting transverse ribs[J]. Physics of Fluids (S1070-6631), 2006, 18(8): 087110.
[10] Gogte S, Vorobieff P, Truesdell R, et al.Effective slip on textured superhydrophobic surfaces[J]. Physics of fluids (S1070-6631), 2005, 17(5): 051701.
[11] Woolford B, Prince J, Maynes D, et al.Particle image velocimetry characterization of turbulent channel flow with rib patterned superhydrophobic walls[J]. Physics of Fluids (S1070-6631), 2009, 21(8): 085106.
[12] Daniello R J, Waterhouse N E, Rothstein J P.Drag reduction in turbulent flows over superhydrophobic surfaces[J]. Physics of Fluids (S1070-6631), 2009, 21(8): 085103.
[13] 成璐. 微纳二级结构超疏水表面湍流减阻机理的TRPIV实验研究[D]. 天津: 天津大学, 2014.
Cheng Lu.TRPIV Experimental investigation on mechanism of turbulence drag reduction by micronano structural superhydrophobic surface[D]. Tianjin: Tianjin University, 2014.
[14] Min T, Kim J.Effects of hydrophobic surface on skin-friction drag[J]. Physics of Fluids (S1070-6631), 2004, 16(7): 55-58.
[15] Fukagata K, Kasagi N, Koumoutsakos P.A theoretical prediction of friction drag reduction in turbulent flow by superhydrophobic surfaces[J]. Physics of fluids (S1070-6631), 2006, 18(5): 051703.
[16] 吕田, 陈晓玲. 超疏水性圆管湍流减阻的数值模拟[J]. 上海交通大学学报, 2009, 43(8): 1280-1283.
Lü Tian, Chen Xiaoling.Numerical simulation of drag reduction of circular pipe with superhydrophobic wall in turbulent flow[J]. Journal of Shanghai Jiaotong University, 2009, 43(8): 1280-1283.
[17] Park H, Park H, Kim J.A numerical study of the effects of superhydrophobic surface on skin-friction drag in turbulent channel flow[J]. Physics of Fluids (S1070-6631), 2013, 25(11): 110815.
[18] Lee J, Jelly T, Zaki T.Effect of Reynolds number on turbulent drag reduction by superhydrophobic surface textures[J]. Flow Turbul. Combust (S1386-6184), 2015, 95(2/3): 277-300.
[19] 宋保维, 郭云鹤, 胡海豹, 等. 微结构超疏水表面减阻特性数值研究[J]. 计算物理, 2013, 30(1): 70-74.
Song Baowei, Guo Yunhe, Hu Haibao, et al.Drag reduction on micro-structured superhydrophobic surfaces[J]. Chinese Journal of Computational Physics, 2013, 30(1): 70-74.
[20] 黄桥高, 潘光, 宋保维, 等. 超疏水表面流场特性及减阻规律的数值仿真研究[J]. 船舶力学, 2014, 18(1): 1-11.
Huang Qiaogao, Pan Guang, Song Baowei, et al.Numerical simulation of superhydrophobic surface’s flow field characteristic and drag reduction rule[J]. Journal of Ship Mechanics, 2014, 18(1): 1-11.
[21] Watanabe S, Mamori H, Fukagata K.Drag-reducing performance of obliquely aligned superhydrophobic surface in turbulent channel flow[J]. Fluid Dynamics Research (S0169-5983), 2017, 49(2): 025501.
[22] 李春曦, 张硕, 叶学民. 界面曲率对超疏水微通道减阻的影响[J]. 系统仿真学报, 2018,30(10):3903-3913.
Li Chunxi, Zhang Shuo, Ye Xuemin.Effect of interface curvature on drag reduction of superhydrophobic microchannels[J]. Journal of System Simulation, 2018, 30(10): 3903-3913.
[23] 朱红钧. FLUENT流体分析及仿真实用教程[M]. 北京: 人民邮电出版社, 2010.
Zhu Hongjun.FLUENT fluid analysis and simulation practical tutorial[M]. Beijing: Posts & Telecom Press, 2010.
[24] White F M, Corfield I.Viscous fluid flow[M]. New York: McGraw-Hill, 2006.

湍流状态下超疏水微通道阻力特性仿真研究

Simulation of the Resistance of Superhydrophobic Microchannel in Turbulent Regime

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 5

编辑推荐

Metrics

本文评价

[1]	陈纯毅, 杨华民, 任斌, 蒋振刚. 激光大气湍流传输数值实验建模与计算机模拟[J]. 系统仿真学报, 2018, 30(6): 2133-2143.
[2]	李春曦, 张硕, 叶学民. 界面曲率对超疏水微通道减阻的影响[J]. 系统仿真学报, 2018, 30(6): 2405-2413.
[3]	王纪森, 贾倩, 陈晨, 张亚平, 杜疆. 液压管路油液流动的湍流模型参数修正研究[J]. 系统仿真学报, 2018, 30(5): 1665-1671.
[4]	韩传军, 余成, 段行知, 李琦. 管道清管器收球装置流场分析[J]. 系统仿真学报, 2018, 30(4): 1407-1414.
[5]	任斌, 陈纯毅, 杨华民. 大气湍流光波传输数值仿真技术研究综述[J]. 系统仿真学报, 2017, 29(8): 1631-1640.