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EFFECT OF CONSTRICTION RESISTANCE ON DROPWISE CONDENSATION HEAT TRANSFER

WU Yuting;YANG Chunxin;YUAN Xiugan;WANG Anliang   

  • Online:2001-10-25 Published:2001-10-25

限制热阻对珠状凝结换热的影响

吴玉庭; 杨春信; 袁修干; 王安良   

  1. 北京航空航天大学飞行器设计与应用力学系

Abstract: 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 in this paper 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 decreasing surface thermal conductivity.

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 :珠状凝结换热系数随冷凝壁材料导热系数的降低而降低