MOLECULAR DYNAMICAL STUDY ON THE NANOSCALE EFFECT OF PARTICLES ON THE THERMAL CONDUCTIVITY AND VISCOSITY IN NANOFLUIDS

摘要：

Molecular dynamics (MD) simulation method is used to simulate the thermophysical properties of nanofluids: thermal conductivity and viscosity. This paper reports a better agreement between present numerical results and experimental data. It shows MD to be an effective method to forecast some thermal properties of nanofluids. Many former experiments have shown that this new heat transfer fluids - nanofluids can greatly enhance the heat-transfer efficiency. This work further gives the effects of the volume fraction and the size of nanoparticles on the thermal conductivity and the viscosity of nanofluids. Numerical results show that, decreasing size of nanoparticle or increasing the volume fraction can increase thermal conductivity with increasing viscosity; for suitable volume fraction and size, increasing viscosity with improving heat transfer capability is acceptable.

关键词： nanofluid thermal conductivity viscosity MD

作者: Wen-Qiang Lu Qing-Mei Fan

作者单位: Division of Thermal Sciences, College of Physical Sciences Graduate University of Chinese Academy of Division of Thermal Sciences, College of Physical SciencesGraduate University of Chinese Academy of

会议类型: 国际会议

会议名称: 2007年微纳系统集成及其商业化应用国际学术会议(2007 International Conference & Exhibition on Integration and Commercialization of Micro and Nano-Systems)

会议地点: 海南三亚

会议语种:英文

在线出版日期: 2007-01-10（万方平台首次上网日期，不代表论文的发表时间）