Seminar
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| Location: | SLMath: Eisenbud Auditorium, Online/Virtual |
A Model of Gas-Surface Interaction
In the kinetic theory of gases it is important to understand how gas molecules interact with the surface of solids immersed in the gas flow, or with the wall of a container. Various phenomenological models have been proposed to address this issue, the best known being the Maxwell accommodation condition (1879) and perhaps the Cercignani-Lampis model (1972). The purpose of this talk is to propose a condition based on a first principle description of the interaction between gas molecules and a solid surface involving (1) physisorption, and (2) the simplest imaginable model describing the collisions between gas molecules and phonons created by the vibrations of the crystalline structure of the solid. This is joint work with K. Aoki, V. Giovangigli and S. Kosuge.
Ref:
1. K. Aoki, V. Giovangigli, F. Golse, S. Kosuge: J. Stat. Phys. 191:53 (2024)
2. S. Kosuge, K. Aoki, V. Giovangigli, F. Golse: Phys. Fluids 10:053401 (2025)
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