Molecular dynamics simulation of heat transfer with effects of fluid-lattice interactions

Qibin Li; Chao Liu

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Molecular dynamics simulation of heat transfer with effects of fluid-lattice interactions

机译：液-晶相互作用对传热的分子动力学模拟

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The nonequilibrium molecular dynamics simulation is employed to investigate the thermal properties of fluid confined in different FCC nanochannels. The results show that fluid in different lattice channels appears diverse wetting characteristics at low temperature. Based on wall parameters, a ratio is defined to describe the fluid-lattice interaction. Wall attraction, number of absorbed particles and thermal conductivity are increased as the increase of this ratio as well as the location of particles get closer to the wall. Thermal resistance exists along with the fluid-wall interface and loses the dominant of heat transport as the system temperature gets raised. At the same time, the thermal conductivity of nanoscale experiences unconventional increase. The fluid thermal properties are influenced both by wall-fluid interaction and temperature.

机译：非平衡分子动力学模拟用于研究限制在不同FCC纳米通道中的流体的热性能。结果表明，不同晶格通道中的流体在低温下表现出不同的润湿特性。基于壁参数，定义比率以描述流体-晶格相互作用。随着该比例的增加以及颗粒位置越来越靠近壁，壁的吸引力，吸收的颗粒数和热导率也随之增加。随着系统温度的升高，热阻与流体-壁界面同时存在，并失去了热传递的主导地位。同时，纳米级的导热率非常规地增加。流体的热特性受壁-流体相互作用和温度的影响。

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来源
《International Journal of Heat and Mass Transfer》 |2012年第26期|p.8088-8092|共5页
作者
Qibin Li; Chao Liu;
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作者单位

Key Laboratory of Low Grade Energy Utilization Technology and System of Ministry of Education, College of Power Engineering, Chongqing University, Chongqing 400030, China;

Key Laboratory of Low Grade Energy Utilization Technology and System of Ministry of Education, College of Power Engineering, Chongqing University, Chongqing 400030, China;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类
关键词
heat transfer; nanochannei; fluid-lattice interaction; molecular dynamics simulation;

机译：传播热量;纳奈液-晶格相互作用分子动力学模拟;

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Molecular dynamics simulation of heat transfer with effects of fluid-lattice interactions

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