QUANTIFYING THE THERMAL ACCOMMODATION COEFFICIENT FOR IRON SURFACES USING MOLECULAR DYNAMICS SIMULATIONS

被引：0

作者：

Sipkens, T. A. ^{[1
]}

Daun, K. J. ^{[1
]}

Titantah, J. T. ^{[2
]}

Karttunen, M. ^{[3
]}

机构：

[1] Univ Waterloo, Dept Mech & Mechatron Engn, Waterloo, ON, Canada

[2] Western Univ, London, ON, Canada

[3] Univ Waterloo, Dept Chem, Waterloo, ON, Canada

来源：

PROCEEDINGS OF THE ASME INTERNATIONAL MECHANICAL ENGINEERING CONGRESS AND EXPOSITION, 2015, VOL 8B | 2016年

关键词：

LASER-INDUCED INCANDESCENCE; GAS ATOMS; SCATTERING; CARBON; NANOPARTICLES; SENSORS; MODEL;

D O I：

暂无

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

With nanotechnology becoming an increasingly important field in contemporary science, there is a growing demand for a better understanding of energy exchange on the nanoscale. Techniques, such as time-resolved laser-induced incandescence, for example, require accurate models of gas-surface interaction to correctly predict nanoparticle characteristics. The present work uses molecular dynamics to define the thermal accommodation coefficient of various gases on iron surfaces. A more in depth analysis examines the scattering distributions from the surfaces and examines how well existing scattering kernels and classical theories can represent these distributions. The molecular dynamics-derived values are also compared to recent experimental time-resolved laser-induced incandescence studies aimed at evaluating the thermal accommodation coefficient across a range of surface-gas combinations.

引用

页数：10

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