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含相变微粒流体热对流启动的Galerkin解 被引量：1

THE GALERKIN SOLUTION OF THE ONSET OF NATURAL CONVECTION IN PHASE-CHANGING-MATERIAL SLURRY
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摘要 采用Bubnov-Galerkin方法对有恒壁温条件下,两平板间夹有含相变颗粒流体的自然对流热启动瑞利数进行了近似解析求解,求出了临界瑞利数Ra_(cr)和波频数k_(cr)随相变物质浓度,以及在相变温度范围内随加热表面温度的解析关系表达式。从而,为实现该类功能性潜热流体的自然对流传热强化,及其优化控制蓄热过程有理论指导意义. The Rayleigh-Bénard natural convection in a horizontal liquid layer with PCM particles between two planes has been studied using a Bubnov-Galerki approximation method.The surface of the two planes is maintained at constant temperatures.The analytical solution to the critical Rayleigh number with the variation of the concentration of the PCM materials and the temperature of the heating plane is obtained.The result is useful for the implement of the heat transfer enhancement in natural convection in such kind of fluids and the optimization in the heat/cold storage process.
作者 杨路彪 戴传山
机构地区 天津大学机械学院热能系
出处 《工程热物理学报》 EI CAS CSCD 北大核心 2007年第z2期121-123,共3页 Journal of Engineering Thermophysics
基金 国家自然科学基金(No.50576065)
关键词 相变流体 热对流启动 解析解 phase-change-material slurry onset of the thermal convection analytical solution
分类号 TK124 [动力工程及工程热物理—工程热物理]
  • 相关文献

参考文献5

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  • 4[4]Inaba H,Dai C,Horibe A.Natural Convection Heat Transfer of Microemulsion Phase-Change-Material Slurry in Rectangular Cavities Heated from Below and Cooled from Above.Int.Journal of Heat and Mass Transfer,2003,46(23):4427-4438
  • 5戴传山,司士荣.含相变颗粒流体的Rayleigh-Bénard对流热启动[J].化工学报,2004,55(5):824-827. 被引量：2

二级参考文献10

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共引文献1

同被引文献30

  • 1樊耀峰,张兴祥,王学晨,牛建津,蔡利海.相变材料纳米胶囊的制备与性能[J].高分子材料科学与工程,2005,21(1):288-292. 被引量：35
  • 2戴传山,张永发,孙平乐.含相变物质流体的自然对流强度评价[J].化工学报,2006,57(2):246-250. 被引量：1
  • 3庄秋虹,张正国,方晓明.微/纳米胶囊相变材料的制备及应用进展[J].化工进展,2006,25(4):388-391. 被引量：48
  • 4戴传山,张永发.含相变微粒流体层蓄热过程的传热机理研究[J].太阳能学报,2006,27(9):929-933. 被引量：4
  • 5Kim E Y, Kim H D. Preparation and properties of microencapsulated octadecane with waterborne polyurethane[J]. Journal of Applied Polymer Science, 2005, 96: 1596-1604.
  • 6Inaba H. New challenge in advanced thermal energy transportation using functionally thermal fluids [J]. Int. J. Thermal Sciences, 2000, 39(9-11): 991-1003.
  • 7Charunyakorn P, Sengupta S, Roy S K. Forced convection heat transfer in microencapsulated phase change material slurries., flow in circular ducts [J]. Int. J. Heat Mass Transfer, 1991, 34 (3): 819-833.
  • 8Choi E S, Cho Y I, Harold G L. Forced convection heat transfer with phase-change-material slurries: Turbulent flow in a circular tube [J]. Int. J. Heat Mass Transfer, 1994, 37: 207-215.
  • 9Inaba H, Kim M J, Horibe A. Melting heat transfer characteristics of microencapsulated phase change material slurries with plural microcapsules having different diameters [J]. ASME J. Heat Transfer, 2004, 126(4): 558-565.
  • 10Katz L. Natural convection heat transfer with fluids using suspended particles while undergoing phase change [D]. Massachusetts: Department of Mechanical Engineering, Massachusetts Institute of Technology, 1976.

引证文献1

工程热物理学报
2007年 第z2期

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