CIESC Journal ›› 2015, Vol. 66 ›› Issue (12): 4758-4766.doi: 10.11949/j.issn.0438-1157.20150392

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Effects of temperature-dependent viscosity on turbulent flow and heat transfer in jackets with triangular helical ducts

WANG Cuihua1, ZHAO Baozeng1, GONG Bin1, KOU Liping1, WU Jianhua1,2   

  1. 1 School of Energy and Power Engineering, Shenyang University of Chemical Technology, Shenyang 110142, Liaoning, China;
    2 School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
  • Received:2015-03-27 Revised:2015-09-16 Online:2015-12-05 Published:2015-09-21
  • Supported by:

    supported by Special Program for Local Universities Development of Central Finance of China and the National Natural Science Foundation of China (51406125 ).


Considering fluid temperature-dependent viscosity, turbulent flow and heat transfer in the jackets with helical ducts were investigated numerically. Comparisons between experimental values and simulated values indicated that the simulation method was reliable. Based on the simulated results, the effects of temperature-dependent viscosity on the characteristics of turbulent flow and heat transfer were studied, variations of the mean flow resistance (fRem) and mean Nusselt number (Num) of cross section in the flow direction were analyzed, and the whole flow resistance and the whole Nusselt number of varied viscosity flow were compared with those of constant viscosity flow. The results show that temperature-dependent viscosity affects the features of fluid flow and heat transfer in the jackets to a certain extent. The development of fRem and Num along the axial direction is divided into the early, the middle and the later stages. The difference is obvious at the later developing stage between the trends with varied viscosity and constant viscosity. Under the same incoming flow and thermal boundary conditions, compared to those with constant viscosity, the local flow resistance with varied viscosity is lower, the local Nusselt number is larger, so that the whole flow resistance is lower and the whole Nusselt number is larger. Furthermore, with the decrease of the Reynolds number and the dimensionless curvature ratio, differences between the characteristics of flow and heat transfer for varied and constant viscosities are more obvious, so temperature-dependent viscosity is a greater contributing factor to fluid flow and heat transfer.

Key words: jackets with triangular helical ducts, viscosity, heat transfer, fluid flow

CLC Number: 

  • TQ021.1

[1] Park J, Ligrani P M. Numerical predictions of heat transfer and fluid flow characteristics for seven different dimpled surfaces in a channel [J]. Num. Heat Transfer A, 2005, 47(3): 209-232.
[2] Garvin J. Estimate heat transfer and friction in dimple jackets [J]. Chemical Engineering Progress, 2001, 97(4): 73-75.
[3] Fan Qi (范琦), Yin Xia (尹侠). Numerical simulation of flow and heat transfer and structural optimization of dimple jackets [J]. Chemical Industry and Engineering Progress (化工进展), 2009, 28(1): 31-36.
[4] Dhotre T, Murthy Z V P. Modeling and dynamic studies of heat transfer cooling of liquid in half-coil jackets [J]. Chem. Eng. J., 2006, 118(3): 183-188.
[5] Jayakumar N S, Farouq S M. The dynamics of liquid cooling in half-coil jackets [J]. Chemical Product and Process Modeling, 2008, 3(1): 1-16.
[6] Li Yaxia (李雅侠), Wang Hang (王航), Wu Jianhua (吴剑华). Fully developed laminar flow and heat transfer characteristics in half coil jackets [J]. CIESC Journal (化工学报), 2010, 61(11): 2796-2803.
[7] Li Yaxia (李雅侠), Hua Bo (华博), Wu Jianhua (吴剑华). Flow characteristics of turbulent fluid in the inner half-coil jackets of an autoclave [J]. The Chinese Journal of Process Engineering (过程工程学报), 2011, 11(6): 913-918.
[8] Li Yaxia, Wu Jianhua, Zhan Hongren, Wang Cuihua. Fluid flow and heat transfer characteristic of outer and inner half coil jackets [J]. Chinese Journal of Chemical Engineering, 2011, 19(2): 253-261.
[9] Li Yaxia, Wu Jianhua, Zhang Li, Kou Liping. Comparison of fluid flow and heat transfer behavior in outer and inner half coil jackets and field synergy analysis [J]. Applied Thermal Engineering, 2011, 31(14/15): 3078-3083.
[10] Wang Cuihua, Liu Shengju, Wu Jianhua, Li Yaxia. Laminar flow and heat transfer characteristics in jackets of triangular flow channels[J]. Chinese Journal of Chemical Engineering, 2013, 21(11): 1224-1231.
[11] Wang Cuihua, Wu Jianhua, Liu Shengju. Characteristic of turbulent flow in the jackets with triangular helical ducts// The 3rd SREE Conference on Chemical Engineering [C], 2013: 23-28.
[12] Wang Cuihua (王翠华), Wu Jianhua (吴剑华), Liu Shengju (刘胜举). Simulation on turbulent flow and heat transfer in the triangular helical jacket [J]. The Chinese Journal of Process Engineering (过程工程学报), 2013, 13(4): 580-585.
[13] Kumar V, Gupta P, Nigam K D P. Fluid flow and heat transfer in curved tubes with temperature-dependent properties [J]. Industrial and Engineering Chemistry Research, 2007, 46(10): 3226-3236.
[14] Andrade C R, Zaparoli E L. Effects of temperature-dependent viscosity on fully developed laminar forced convection in a curved duct [J]. Int. Communications in Heat and Mass Transfer, 2001, 28(2): 211-220.
[15] Shin S, Cho Y I, Gringrich W K. Numerical study of laminar heat transfer with temperature dependent fluid viscosity in a 2:1 rectangular duct [J]. International Journal of Heat and Mass Transfer, 1993, 36(18): 4365-4373.
[16] Chang H S, Chang J W. Laminar heat and fluid flow characteristic with a modified temperature-dependent viscosity model in a rectangular duct [J]. J. Mech. Sci. Tech., 2006, 20(3): 382-390.
[17] Germano M. The Dean equations extended to a helical pipe flow [J]. J. Fluid Mech., 1989, 203: 289-305.
[18] Bolinder C J, Sunden B. Flow visualization and LDV measurements of laminar flow in a helical square duct with finite pitch [J]. Exp. Therm. Fluid Sci., 1995, 11(4): 348-363.
[19] Gui Keting (归柯庭), Wang Jun (王军), Wang Qiuying (王秋颖). Engineering Fluid Mechanics (工程流体力学) [M]. Beijing: Science Press, 2003: 12-14.
[20] Bondy F, Lippa S. Heat-transfer in agitated vessels [J]. Chemical Engineering, 1983, 90(7): 62-71.
[21] Wang Fujun (王福军). Computational Fluid Dynamics Analysis (计算流体动力学分析) [M]. Beijing: Tsinghua University Press, 2004: 116-125.

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