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- Title
Accommodation coefficients for molecular hydrogen on a graphite surface.
- Authors
Kovalev, V.; Yakunchikov, A.
- Abstract
On the basis of the molecular dynamics simulation method the trajectories of hydrogen molecules reflected from a graphite surface are calculated with account for its structure and the thermal motion of carbon atoms. The velocity distribution after the reflection is obtained as a function of the velocity magnitude and direction of the incident molecules and the surface temperature. In the case of heat transfer between symmetric surfaces in the free-molecular regime, the energy accommodation coefficients are calculated for hydrogen on graphite as functions of the gas and wall temperatures. The results obtained are in agreement with experimental data.
- Subjects
ACCOMMODATION coefficient; MOLECULAR dynamics; HYDROGEN; GRAPHITE; SURFACES (Technology); MOMENTUM (Mechanics); HEAT transfer
- Publication
Fluid Dynamics, 2010, Vol 45, Issue 6, p975
- ISSN
0015-4628
- Publication type
Article
- DOI
10.1134/S0015462810060153