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 |