多孔介质模型在板翅式换热器数值模拟中的应用Application of Porous Media and Distributed Resistance Model in Numerical Simulation of Plate-fin Heat Exchanges
朱冬生,毛玮,蓝少健,张鸿声
ZHU Dong-sheng1,2,MAO Wei1,LAN Shao-jian1
摘要(Abstract):
利用FLUENT软件中的多孔介质模型,对板翅式燃气热水器换热器芯体内流体的流动与传热进行三维数值模拟。计算分析了不同操作参数条件下,换热器芯体的流场分布特点,计算结果与热水器样机测试实验结果吻合,表明该模型的应用是切实可行的。
It was discussed that the application of porous media and distributed resistance model in numerical simulation of plate-fin heat exchanger which was used in the gas-fired water heater.The flow field distribution in the core body of the heat exchanger were analyzed under different operating parameters,and good agreement is obtained between the computed results and the experiments of the water heater,demonstrating the feasibility of the porous media and distributed resistance model.
关键词(KeyWords):
板翅式;芯体;多孔介质;数值模拟
plate-fin;core body;porous media;numerical simulation
基金项目(Foundation): 广东省经贸委项目:家电产业升级技术改造-节能环保型燃气热水器燃烧换热系统生产技术改造(2009440002030252)
作者(Author):
朱冬生,毛玮,蓝少健,张鸿声
ZHU Dong-sheng1,2,MAO Wei1,LAN Shao-jian1
参考文献(References):
- [1]钟振兴,朱冬生,刘清明,等.板式蒸发式冷凝器传热性能试验研究[J].流体机械,2011,39(2):65-68,46.
- [2]朱冬生,徐婷,杨硕,等.管翅式热泵相变储能器的数值模拟[J].流体机械,2011,39(6):62-67.
- [3]宋虎堂,李培宁.蜂窝紧凑结构螺旋板换热器[J].压力容器,2010,38(4):17-19,8.
- [4]Prithiviraj M,Andrews M J.Three Dimensional Nu-merical Simulations of Shell-and-Tube Heat Exchang-ers[J].Part I:Heat Transfer.Numerical HeatTransfer,1998,Part.A.33(B):817-828.
- [5]Patankar S V,Spalding D B.Heat Exchanger DesignTheory Source Book[M].New York:McGRAW-HillBook Company,1974.155-176.
- [6]Sha W T,Yang C I,Kao T T,Cho S M.Multidimen-sional Numerical Modeling of Heat Exchangers[J].Journal of Heat Transfer,1982,104(2):417-425.
- [7]Karaannis N,Markatos N C G.Mathmatical Modelingof Heat Exchangers[C].Brighton,UK:Proceedingsof the Tenth International Heat Conference,The indus-trial Sessions Papers,1994.13-18.
- [8]Huang L Y,Wen J X,Karaynannis T G,et al.CFDModeling of Fluid Flow and Heat Transfer in a Shell-and-Tube Heat Exchanger[J].Phoenics J.CFD Ap-pl,1996,9(2):189-206.
- [9]Prithiviraj M,Andrews M J.Three Dimensional Nu-merical Simulations of Shell-and-Tube Heat Exchang-ers[J].Part II:Heat Transfer.Numerical HeatTransfer,Part A,1998,33(8):829-831.
- [10]熊智强,喻九阳.管壳式换热器流场数值模拟方法[J].武汉工程职业技术学院学报,2006,18(3):45-49.
- [11]Fluent Incorporated.FLUENT 6.0 Tutorial GuideVolumes,1998.