The mass flux boundary condition at a moving fluid-fluid interface

Journal Article · Sun Oct 01 04:00:00 EDT 1995 · Industrial and Engineering Chemistry Research

DOI:https://doi.org/10.1021/ie00037a039· OSTI ID:183016

Quintard, M ^[1]; Whitaker, S ^[2]

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1. L.E.P.T.-ENSAM, Talence (France)
2. Univ. of California, Davis, CA (United States). Dept. of Chemical Engineering and Material Science

The dissolution of organic chemicals into ground water aquifers represents a mass transport process of considerable complexity. The rate of dissolution can depend on the manner in which the organic material is distributed, on the nature of the mechanical and chemical heterogeneities associated with a particular aquifer, and on the equilibrium relations for the individual chemical species. One aspect of this problem that has not been considered in detail is the flux boundary condition at the organic phase-aqueous phase interface, and it is the nature of this boundary condition that is explored in this paper. At a moving fluid-fluid interface, one must make use of the species mass jump condition for a singular surface, the appropriate form of the Stefan-Maxwell equations, and the mass average momentum equation in order to develop a general form of the mass flux boundary condition. In this paper the authors show an expression for the motor flux condition for species A at the {beta}-{gamma} interface.

• Sponsoring Organization: USDOE
• OSTI ID: 183016
• Journal Information: Industrial and Engineering Chemistry Research, Journal Name: Industrial and Engineering Chemistry Research Journal Issue: 10 Vol. 34; ISSN IECRED; ISSN 0888-5885
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
DISSOLUTION
ENVIRONMENTAL TRANSPORT
GROUND WATER
INTERFACES
MATHEMATICAL MODELS
ORGANIC COMPOUNDS
PHASE STUDIES
SOLVENT PROPERTIES