通过对微胶囊相变悬浮液管内层流恒热流对流换热的数学建模和模拟计算,获得在恒热流加热边界条件下,不同参数匹配时相变糊状区的确切范围以及固液相变两条相界面的数值结果.利用该模型对影响悬浮型固液两相流传热特性的诸多参数进行了比较细致的定量分析,这些参数包括固相体积浓度、斯蒂芬(Ste)数、粒径比、无量纲相变温度区间宽度以及无量纲过冷度等.分析和模拟计算的结果显示微胶囊浓度和斯蒂芬数对管内层流传热具有最重要的影响.
参考文献
| [1] | Y Cao;A Faghri .A Numerical Analysis of Phase-Change problems Including Natural Convection[J].Journal of Heat Transfer,1990,112(03):812-816. |
| [2] | P Charunyakorn;S Sengupta;S K Roy .Forced Convection Heat Transfer in Microencapsulated Phase Change Material Slurries:Flow in Circular Ducts[J].International Journal of Heat and Mass Transfer,1991,34(03):819-832. |
| [3] | Y W Zhang;A Faghri .Analysis of Forced Convection Heat Transfer in Microencapsulated Phase Change material Suspensions[J].Journal of Thermophysics and Heat Transfer,1995,9(04):727-732. |
| [4] | Xianxu Hu;Yinping Zhang .Novel insight and numerical analysis of convective heat transfer enhancement with microencapsulated phase change material slurries: laminar flow in a circular tube with constant heat flux[J].International Journal of Heat and Mass Transfer,2002(15):3163-3172. |
| [5] | 郝睿 .微胶囊相变悬浮液的管内层流强化传热性能研究[D].天津大学,2004. |
| [6] | M Goel;S K Roy .Sengupta,Laminar Forced Convection Heat Transfer in Microencapsulated Phase Change Material Suspensions[J].International Journal of Heat and Mass Transfer,1994,37(04):593-604. |
| [7] | 赵镇南,郝睿,王利.固液两相流中微对流强化的机理分析与数值模拟[J].工程热物理学报,2005(04):656-658. |
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