| Analysis of melting driven by friction and temperature difference under sliding plate |
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| 引用本文： | CHEN Wenzhen,ZHAO Yuansong,SUN Fengrui,ZHU Bo,GONG Miao. Analysis of melting driven by friction and temperature difference under sliding plate[J]. 自然科学进展, 2007, 17(3): 366-370 |
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| 作者姓名： | CHEN Wenzhen ZHAO Yuansong SUN Fengrui ZHU Bo GONG Miao |
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| 作者单位： | College of Power and Shipping, Naval University of Engineering, Wuhan 430033， China |
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| 基金项目： | Supported by National Natural Science Foundation of China (Grant No. 50376074) |
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| 摘 要： | The contact melting processes of phase change material (PCM) under a sliding plate, which is driven by the friction and temperature difference ΔT, are studied. By using film theory, the fundamental equations for the melting process are derived. The thickness of boundary layer, the pressure distribution inside boundary layer and the mass melting rate of PCM are also obtained with the numerical method. It is found that (1) the larger the temperature difference is, the larger the thickness of boundary layer and the mass melting rate are, and the more asymmetric the pressure distribution is; (2) the quicker the sliding velocity is, the larger the mass melting rate is, the flatter the thickness of boundary layer is, and the more symmetric the pressure distribution is; (3) the results of the contact melting driven together by the friction and temperature difference cannot be obtained by the addition of those driven respectively by the friction and temperature difference.
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Analysis of melting driven by friction and temperature difference under sliding plate |
| |
| CHEN Wenzhen,ZHAO Yuansong,SUN Fengrui,ZHU Bo,GONG Miao. Analysis of melting driven by friction and temperature difference under sliding plate[J]. , 2007, 17(3): 366-370 |
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| Authors: | CHEN Wenzhen ZHAO Yuansong SUN Fengrui ZHU Bo GONG Miao |
| |
| Abstract: | The contact melting processes of phase change material (PCM) under a sliding plate, which is driven by the friction and temperature difference AT, are studied. By using film theory, the fundamental equations for the melting process are derived. The thickness of boundary layer, the pressure distribution inside boundary layer and the mass melting rate of PCM are also obtained with the numerical method. It is found that (1) the larger the temperature difference is, the larger the thickness of boundary layer and the mass melting rate are, and the more asymmetric the pressure distribution is; (2) the quicker the sliding velocity is, the larger the mass melting rate is, the flatter the thickness of boundary layer is, and the more symmetric the pressure distribution is; (3) the results of the contact melting driven together by the friction and temperature difference cannot be obtained by the addition of those driven respectively by the friction and temperature difference. |
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| Keywords: | friction contact melting sliding plate |
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