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《Journal of the Graduate School of the Chinese Academy of Science》 2004-01
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Molecular Dynamic Study of Dropwise Condensation on the Metal Surface Coated by a Monolayer Polymer Network

LIANG Shi-Qiang XU Jing-Zhong (Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100080,China)  
By complexing a kind of polymer network onto the copper surface, a new model of dropwise condensation for water vapor is proposed. It is contended that the monolayer spread film can be tightly attached to the metal surface by a number of coordination bonds and can be self-repairable, so that longer duration and higher heat transfer efficiency may be anticipated. A criterion of dropwise or filmwise condensation was introduced and MD simulations were carried out to calculate the cohesive energy of water and adsorptive energy of surface. The results indicate that dropwise condensation can occur on the polymer network surface, and the particle configurations indicate that the big rings of the network may play the role of nucleation center sites.
【CateGory Index】: TK124
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