کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
519518 867670 2011 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A Monte Carlo model for determination of binary diffusion coefficients in gases
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
A Monte Carlo model for determination of binary diffusion coefficients in gases
چکیده انگلیسی

A Monte Carlo method has been developed for the calculation of binary diffusion coefficients in gas mixtures. The method is based on the stochastic solution of the linear Boltzmann equation obtained for the transport of one component in a thermal bath of the second one. Anisotropic scattering is included by calculating the classical deflection angle in binary collisions under isotropic potential. Model results are compared to accurate solutions of the Chapman–Enskog equation in the first and higher orders. We have selected two different cases, H2 in H2 and O in O2, assuming rigid spheres or using a model phenomenological potential. Diffusion coefficients, calculated in the proposed approach, are found in close agreement with Chapman–Enskog results in all the cases considered, the deviations being reduced using higher order approximations.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Computational Physics - Volume 230, Issue 14, 20 June 2011, Pages 5716–5721
نویسندگان
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