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Article Dans Une Revue Physical Review E : Statistical, Nonlinear, and Soft Matter Physics Année : 2012

Effects of surface morphology and anisotropy on the tangential momentum accommodation coefficient between Pt(100) and Ar

Résumé

In this paper, we study the influence of Platinum (100) surface morphology on the Tangential Momentum Accommodation Coefficient with Argon using Molecular Dynamics method (MD). The coefficient is computed directly by beaming Ar atoms into the surfaces and measuring the relative momentum changes. The wall is maintained at a constant temperature and its interaction with the gas atoms is governed by the Kulginov potential. To capture correctly the surface effect of the walls and atoms trajectory, the Quantum Sutton-Chen multi-body potential is employed between the Pt atoms. Effects of wall surface morphology, incident direction and temperature are considered in this work and provide full information of gas-wall interaction.
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Dates et versions

hal-00749278 , version 1 (07-11-2012)

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  • HAL Id : hal-00749278 , version 1

Citer

T. Tung Pham, Quy-Dong To, Guy Lauriat, Céline Léonard, V. H. Vo. Effects of surface morphology and anisotropy on the tangential momentum accommodation coefficient between Pt(100) and Ar. Physical Review E : Statistical, Nonlinear, and Soft Matter Physics, 2012, 86 (5), pp.051201. ⟨hal-00749278⟩
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