The Proceedings of the Thermal Engineering Conference
Online ISSN : 2424-290X
2003
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Effects of Nanoscale Structure on Energy Transfer from Fluid to Surface : Molecular Dynamics Study
Masahiko SHIBAHARATomoaki KUNUGIKatsumi MUKOMasashi KATSUKI
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CONFERENCE PROCEEDINGS FREE ACCESS

Pages 299-300

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Abstract
Energy transfer from fluid to surface was calculated by using the classical molecular dynamics method in order to investigate effects of surface structures from 0.1nm to 10nm on surface energy transfer numerically. Surface structures on a constant surface area were composed of several hundred atoms having the same thermal properties. Upper region in the calculation domain was controlled at a constant temperature and a solid atomic layer at lower region was controlled at a constant temperature so as to make a temperature gradient in a calculation system. Volume density of fluids were changed from 0.0192g/(cm)^3 to 1.23g/(cm)^3 in the present study. Energy transfer to the surface was much dependent on surface structures in nanometer scale and surface structures in nanometer scale affected the number of fluid molecules that could exchange their kinetic and potential energy to surface atoms in the vicinity of the surface.
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© 2003 The Japan Society of Mechanical Engineers
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