Please use this identifier to cite or link to this item: http://repository.vnu.edu.vn/handle/VNU_123/25919
Title: Effects of surface morphology and anisotropy on the tangential-momentum accommodation coefficient between Pt(100) and Ar
Authors: Pham Thanh Tung
To Quy Dong
Guy Lauriat
C´ eline L´ eonard
Vo Van Hoang
Keywords: BOUNDARY-CONDITIONS;MOLECULAR-DYNAMICS;SLIP;SIMULATIONS;AR/PT(111);SCATTERING;SYSTEM;FLOWS
Issue Date: 2012
Publisher: AMER PHYSICAL SOC, ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
Citation: ISIKNOWLEDGE
Abstract: In this paper, we study the influence of platinum (100) surface morphology on the tangential-momentum accommodation coefficient with argon using a molecular dynamics method. The coefficient is computed directly by beaming Ar atoms onto 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 the atoms' trajectories, the quantum Sutton-Chen multibody potential is employed between the Pt atoms. The effects of wall surface morphology, incident direction, and temperature are considered in this work and provide full information on the gas-wall interaction.
Description: TNS06791; PHYSICAL REVIEW E Volume: 86 Issue: 5 Article Number: 051201 Part: 1 Published: NOV 26 2012
URI: http://repository.vnu.edu.vn/handle/VNU_123/25919
ISSN: 1539-3755
1550-2376
Appears in Collections:Bài báo của ĐHQGHN trong Web of Science

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