Numerical investigation on the heat transfer characteristics of liquid-liquid plug-train in microchannels

被引：1

作者：

Xu, Bin ^{[1
]}

Wong, Teck Neng ^{[2
]}

Zhang, Desheng ^{[1
]}

Shen, Xi ^{[1
]}

Xu, Rongjun ^{[3
]}

机构：

[1] Jiangsu Univ, Res Ctr Fluid Machinery Engn & Technol, 301 Xuefu Rd, Zhenjiang 212013, Jiangsu, Peoples R China

[2] Nanyang Technol Univ, Sch Mech & Aerosp Engn, 50 Nanyang Ave, Singapore 639798, Singapore

[3] Nanjing Lanshen Pump Corp Ltd, Nanjing 211500, Jiangsu, Peoples R China

来源：

CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION | 2019年 / 143卷

关键词：

Heat transfer; Plug-train; Vortices; Multiphase microfluidics; FLOW; SIMULATION; EQUATIONS; DROPLET; VOLUME;

D O I：

10.1016/j.cep.2019.107592

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Liquid-liquid plug-train is of great importance due to its wide applications in the heat transfer enhancement and the richness of underlying physics. This paper presented a theoretical and numerical study of the liquid-liquid plug-train in a microchannel. Based on the analytical model of flow field, the heat transfer process in liquid-liquid plug-train was investigated. The constant surface temperature boundary condition was considered. Nusselt number (Nu) and heat transfer index (eta) were employed to evaluate the heat transfer characteristics of liquid-liquid plug-train in the microchannel. Three stages of the heat transfer process in liquid-liquid plug-train were identified: (i) development of thermal boundary layer (TBL); (ii) advection of heated/fresh fluid in the liquid-liquid plug train; and (iii) thermally fully developed flow. The effects of the thermal conductivity ratio and the plug length ratio were investigated. A low plug length ratio was found to be effective in heat transfer enhancement in the microchannel.

引用

页数：10

共 41 条

[21] Simulation on the coalescence of the moving liquid column and droplet in a hydrophilic microchannel by volume of fluid method [J].

Li, Shu-Zhe ;

Chen, Rong ;

Wang, Hong ;

Liao, Qiang ;

Zhu, Xun ;

Wang, Zhi-Bin .

APPLIED THERMAL ENGINEERING, 2014, 64 (1-2) :129-138

[22] Laminar thermal performance of microchannel heat sinks with constructal vertical Y-shaped bifurcation plates [J].

Li, Yanlong ;

Zhang, Fengli ;

Sunden, Bengt ;

Xie, Gongnan .

APPLIED THERMAL ENGINEERING, 2014, 73 (01) :185-195

[23] Confocal micro-PIV measurements of three-dimensional profiles of cell suspension flow in a square microchannel [J].

Lima, Rui ;

Wada, Shigeo ;

Tsubota, Ken-ichi ;

Yamaguchi, Takami .

MEASUREMENT SCIENCE AND TECHNOLOGY, 2006, 17 (04) :797-808

[24] Passive mixing in a three-dimensional serpentine microchannel [J].

Liu, RH ;

Stremler, MA ;

Sharp, KV ;

Olsen, MG ;

Santiago, JG ;

Adrian, RJ ;

Aref, H ;

Beebe, DJ .

JOURNAL OF MICROELECTROMECHANICAL SYSTEMS, 2000, 9 (02) :190-197

[25] THE STAGGER-GRID: A GRID OF 3D STELLAR ATMOSPHERE MODELS [J].

Magic, Z. ;

Collet, R. ;

Asplund, M. .

NEW ADVANCES IN STELLAR PHYSICS: FROM MICROSCOPIC TO MACROSCOPIC PROCESSES, 2013, 63 :367-371

[26] HEAT TRANSFER ENHANCEMENT IN MICROCHANNELS USING AN ELASTIC VORTEX GENERATOR [J].

Mirzaee, H. ;

Dadvand, A. ;

Mirzaee, I. ;

Shabani, R. .

JOURNAL OF ENHANCED HEAT TRANSFER, 2012, 19 (03) :199-211

[27] Heat Transfer Enhancement Using Laminar Gas-Liquid Segmented Plug Flows [J].

Muzychka, Y. S. ;

Walsh, E. J. ;

Walsh, P. .

JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME, 2011, 133 (04)

[28]

Nguyen N.-T., 2006, MICRO NANOTECHNOLOGY

[29] Improved serpentine laminating micromixer with enhanced local advection [J].

Park, Jang Min ;

Kim, Dong Sung ;

Kang, Tae Gon ;

Kwon, Tai Hun .

MICROFLUIDICS AND NANOFLUIDICS, 2008, 4 (06) :513-523

[30] Experimental Study of Single Phase Heat Transfer and Pressure Loss in a Spiraling Radial Inflow Microchannel Heat Sink [J].

Ruiz, Maritza ;

Carey, Van P. .

JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME, 2015, 137 (07)

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