限制热阻对珠状凝结换热的影响  

EFFECT OF CONSTRICTION RESISTANCE ON DROPWISE CONDENSATION HEAT TRANSFER

作　　者：吴玉庭[1] 杨春信[1] 袁修干[1] 王安良[1] 

机构地区：[1]北京航空航天大学飞行器设计与应用力学系,北京100083

出　　处：《化工学报》2001年第10期896-901,共6页CIESC Journal

基　　金：国家自然科学基金资助项目 (No .5 970 6 0 0 7)~~

摘　　要：应用作者提出的数值模拟模型 ,对不同材料表面珠状凝结换热进行了数值模拟 .计算结果表明The effect of the thermal conductivities of condenser materials on dropwise condensation heat transfer has not been resolved yet. Numerical simulation of dropwise condensation heat transfer of steam on copper, stainless steel, zinc, mild steel surfaces are performed by using a model of dropwise condensation heat transfer proposed by the present authors. The results indicate that dropwise condensation heat transfer coefficient is greatly dependent upon the surface thermal conductivity, and decreases with the decrease of surface thermal conductivity.

关 键 词：珠状凝结 换热 限制热阻 数值模拟 分形 数学物理模型 

分 类 号：TK124[动力工程及工程热物理—工程热物理]