Analysis of melting driven by friction and temperature difference under sliding plate

来源 :自然科学进展(英文版) | 被引量 : 0次 | 上传用户:bjzmht
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
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.
其他文献
One of many interesting research activities in biofluidmechanics is dedicated to investigations of locomotion in water. Some of propulsion mechanisms observed i
Generally there are three kinds of substances used as negative-ion generator in textiles, natural silicate minerals (ceramic/tourmaline), natural rare-earth m
Based on the mechanics of material, the bending stiffness and intensity of cylindrical bar and tube are analyzed. By comparing the cylindrical tube whose ratio
A modelling framework based on functional surface is presented to support conceptual design of mechanical products. The framework organizes product information
Combining the characteristics of the black pulping liquor that contains a lot of lignin and other biomass resources, the technology of comprehensive waste utili
A double-parameter oxygen lance used in a 300 t converter was designed to improve the metallurgical performance. A small-scale measurement of the jet behavior w
宇宙中恒星的演化始于巨星的形成,后者的质量是太阳系的数百倍,寿命估计为数百万年.重元素合成于巨星的内部.它们控制了巨星爆炸过程中( 超新星)形成的气态云和盘状物的冷凝
To reduce sending costs, a flexible wheel configuration is proposed. The wheel is made of titanium alloy (Ti-6Al-4V) in consideration of the planetary environme
The Sumatra-Andaman earthquake on December 26, 2004 is the first well recorded gigantic earthquake (moment magnitude MW 9.3) by modern broadband seismic and Glo
Partial agglomeration is a major problem in fluidized beds. A chaotic analytical method based on the phase-plane invariant of the pressure fluctuations in the f