Transmission probability for Knudsen diffusion in a single chamber-throat pore

作者: Qian Zheng , Jian Xu , Bin Yang , Boming Yu

DOI: 10.1016/J.VACUUM.2011.03.008

关键词: Transmission (telecommunications)ThroatSingle chamberMechanicsChemistryStatistical physicsKnudsen diffusionMonte Carlo methodRadius

摘要: In this study the transmission probability for Knudsen diffusion through a single chamber-throat pore is simulated by test-particle Monte Carlo method. The effects of ratios length to throat radius and chamber on transport properties are investigated. mechanisms affecting revealed discussed in detail. It found that strongly depends ratio remarkably decreases with increasing radius. However, has little effect probability.

参考文章(34)
Ahlborn Wheeler, Reaction Rates and Selectivity in Catalyst Pores Advances in Catalysis. ,vol. 3, pp. 249- 327 ,(1951) , 10.1016/S0360-0564(08)60109-1
Graeme Austin Bird, Molecular gas dynamics ,(1976)
A. S. Berman, Free Molecule Transmission Probabilities Journal of Applied Physics. ,vol. 36, pp. 3356- 3356 ,(1965) , 10.1063/1.1702984
P. Levitz, Knudsen diffusion and excitation transfer in random porous media The Journal of Physical Chemistry. ,vol. 97, pp. 3813- 3818 ,(1993) , 10.1021/J100117A030
Abraham S. Berman, Free Molecule Flow in an Annulus Journal of Applied Physics. ,vol. 40, pp. 4991- 4992 ,(1969) , 10.1063/1.1657335
Saul Dushman, J. R. Pierce, Scientific foundations of vacuum technique ,(1949)
J. Gómez-Goñi, P. J. Lobo, Comparison between Monte Carlo and analytical calculation of the conductance of cylindrical and conical tubes Journal of Vacuum Science and Technology. ,vol. 21, pp. 1452- 1457 ,(2003) , 10.1116/1.1568746
N. Wakao, J.M. Smith, Diffusion in catalyst pellets Chemical Engineering Science. ,vol. 17, pp. 825- 834 ,(1962) , 10.1016/0009-2509(62)87015-8