Time-independent Onsager-type equations are written for a gas diffusing in a slab of porous medium subjected to temperature and pressure gradients. They are solved to obtain temperature, density and pressure profiles inside the slab. Density distribution of gas molecules inside the slab is seen to depend strongly on both temperature and pressure gradients, with a close interplay between the two. Dimensionless particle current and heat flow are computed as a function of diffusion coefficients and boundary conditions.
V. Molinari, D. Mostacci (2006). Onsager Equation Approach to Gas Flow through Porous Media. s.l : WSEAS.
Onsager Equation Approach to Gas Flow through Porous Media
MOSTACCI, DOMIZIANO
2006
Abstract
Time-independent Onsager-type equations are written for a gas diffusing in a slab of porous medium subjected to temperature and pressure gradients. They are solved to obtain temperature, density and pressure profiles inside the slab. Density distribution of gas molecules inside the slab is seen to depend strongly on both temperature and pressure gradients, with a close interplay between the two. Dimensionless particle current and heat flow are computed as a function of diffusion coefficients and boundary conditions.File in questo prodotto:
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