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[1]杨文灏,喻九阳*,吴艳阳,等.螺旋槽管脉冲流强化对流换热数值及场协同分析[J].武汉工程大学学报,2011,(09):46-48.
　YANG Wenhao,YU Jiuyang,WU Yanyang,et al.Numerical analysis on convection heat transfer inspirally fluted and field synergy analysis[J].Journal of Wuhan Institute of Technology,2011,(09):46-48.
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螺旋槽管脉冲流强化对流换热数值及场协同分析(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
期数:
2011年09期
页码:
46-48
栏目:
机电与信息工程
出版日期:
2011-09-30

文章信息/Info

Title:
Numerical analysis on convection heat transfer in
spirally fluted and field synergy analysis
文章编号:
16742869(2011)09004603
作者:
杨文灏; 喻九阳*; 吴艳阳; 高九阳; 刘利军; 刘倩; 林纬
武汉工程大学机电工程学院，湖北 武汉 430074
Author(s):
YANG Wenhao;  YU Jiuyang;  WU Yanyang;  GAO Jiuyang; LIU Lijun; LIU Qian; LIN Wei
Wuhan Institute of Technology,School of Mechanical and Electrical Engineering,Wuhan 430074,China
关键词:
螺旋槽管; 脉冲流; 场协同; 强化传热
Keywords:
 ; spirally fluted tubes;  pulsating flow;  field synergy;  enhanced heat transfer
分类号:
X703
DOI:
-
文献标志码:
AAdoi:10.3969/j.issn.16742869.2011.09.011
摘要:
通过数值模拟计算研究了在螺旋槽管内通入脉冲流后的强化换热机理.数值计算结果表明,脉冲流动能引起出口压力呈周期波动，波动幅度随脉冲流频率的增大而增大；脉冲流动能够使流体在螺旋槽管管壁附近产生漩涡，并出现周期性的生成、漂移和脱落；由于漩涡的作用，增强了流体的径向扰动和相对扰动；脉冲流动能够改善速度场与温度梯度场之间的协同程度，从而起到强化传热的效果.
Abstract:
By numerical simulation computation, enhanced heat transfer mechanism in spirally fluted tubes was researched under passing pulsating flow condition. Numerical result shows that pulsating flow can cause the outlet pressure to fluctuate cyclical and the extent of fluctuation increases with the pulsating flow frequency. The pulse flowing can make the fluid generate the whirlpool nearby the spirally fluted tubes and the phenomenon of periodic production, drift, and falloff appears. Because of the vortex, the fluid motion and relative motion are enhanced. The pulse flowing can improve the coordination level between velocity and temperature, which, therefore,  had strengthened the heat transfer effect.

参考文献/References:

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［2］Zimparov V D,Vulchanov N L, Delov L B. Heat transfer and friction characteristics of spirally corrugated tubes for power plant condensers［J］. Intenrational Journal of Heat and Mass Transfer,1991,34 (5):21872197.
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［4］Chattopadhyay H, Durst F, Ray S. Analysis of heat transfer in simulaneously developoing pulsating laminar flow in apipe with constant wall temperature［J］.International Communications in Heat and Mass Transfer,2006,33:475481.
［5］Mamayev V V, Nosov V S, Syromyatnikov N I. Investigation of heat transfer in pulsed flow of air in pips［J］.Heat Transfersoviet Research,1976,8(3):111116.［6］Zohir A E, Habib M A,Attya A M. An experimental investigation of heat transfer to pulsating pipe air flow with different amplitudes［J］.Heat and Mass Transfer,2006,42:625635.
［7］汪威,喻九阳,杨侠.波节管脉冲流强化对流换热数值分析［J］.武汉工程大学学报，2010,32(3):8991.
［8］刘玉华，喻九阳，郑小涛.气-气混合器的三维流场数值分析 ［J］.武汉工程大学学报，2008,30(2):108110.

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