Time-resolved laser-induced incandescence demands precise knowledge of the thermal accommodation coefficient, but little is known about the gas-surface scattering physics underlying this parameter. This paper presents a molecular dynamics simulation that shows how the thermal accommodation coefficient is influenced by gas molecular mass and the gas temperature. The MD results also define scattering kernels that form boundary conditions in DSMC simulations of heat and momentum transfer between soot aggregates and surrounding gas molecules.
- Heat Transfer Division
Molecular Dynamics Simulations of Translational Thermal Accommodation Coefficients for Time-Resolved LII
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Daun, KJ, Liu, F, & Smallwood, GJ. "Molecular Dynamics Simulations of Translational Thermal Accommodation Coefficients for Time-Resolved LII." Proceedings of the ASME 2008 Heat Transfer Summer Conference collocated with the Fluids Engineering, Energy Sustainability, and 3rd Energy Nanotechnology Conferences. Heat Transfer: Volume 1. Jacksonville, Florida, USA. August 10–14, 2008. pp. 333-342. ASME. https://doi.org/10.1115/HT2008-56043
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