Mutschler D, Larabi MA, Mojtabi A. Theoretical models for the thermo-gravitational separation process in porous media filled by N-component mixtures.
THE EUROPEAN PHYSICAL JOURNAL. E, SOFT MATTER 2017;
40:49. [PMID:
28429180 DOI:
10.1140/epje/i2017-11538-0]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Accepted: 03/24/2017] [Indexed: 06/07/2023]
Abstract
The aim of this work is to present a theoretical analysis of the separation of an N-component mixture. In this study, two analytical models explaining the thermo-gravitational separation of components in N-component mixtures for vertical cavity filled by a porous medium are presented and assessed. The basic state and the separation are expressed in terms of the separation ratio, and the Lewis, cross-diffusion and Rayleigh numbers. Our computational analysis confirms that, for the given values of the mass fractions, thermodiffusion can be measured with a thermo-gravitational column, strongly supporting the experimentally determined transport coefficients.
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