标题: Multi-Species Fluxes for the Parallel Quiet Direct Simulation (QDS) Method
作者: Cave, H. M.
Lim, C. -W.
Jermy, M. C.
Krumdieck, S. P.
Smith, M. R.
Lin, Y. -J.
Wu, J. -S.
机械工程学系
Department of Mechanical Engineering
公开日期: 1-一月-2011
摘要: Fluxes of multiple species are implemented in the Quiet Direct Simulation (QDS) scheme for gas flows. Each molecular species streams independently. All species are brought to local equilibrium at the end of each time step. The multi species scheme is compared to DSMC simulation, on a test case of a Mach 20 flow of a xenon/helium mixture over a forward facing step. Depletion of the heavier species in the bow shock and the near-wall layer are seen. The multi-species QDS code is then used to model the flow in a pulsed-pressure chemical vapour deposition reactor set up for carbon film deposition. The injected gas is a mixture of methane and hydrogen. The temporal development of the spatial distribution of methane over the substrate is tracked.
URI: http://dx.doi.org/10.1063/1.3562756
http://hdl.handle.net/11536/146304
ISSN: 0094-243X
DOI: 10.1063/1.3562756
期刊: 27TH INTERNATIONAL SYMPOSIUM ON RAREFIED GAS DYNAMICS, 2010, PTS ONE AND TWO
Volume: 1333
起始页: 878
显示于类别:Conferences Paper