Journal ArticleDOI
Dispersion in pulsed systems—I: Heterogenous reaction and reversible adsorption in capillary tubes
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In this article, the authors considered the dispersion of a pulse of solute in a capillary tube undergoing irreversible, heterogeneous reaction or reversible adsorption at the tube wall.About:
This article is published in Chemical Engineering Science.The article was published on 1983-01-01. It has received 111 citations till now. The article focuses on the topics: Dispersion (chemistry) & Dispersion relation.read more
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Journal ArticleDOI
A critical review of dispersion in packed beds
TL;DR: In this paper, the authors summarized and reviewed a great deal of information from the literature on dispersion in packed beds, and provided empirical correlations for the prediction of the dispersion coefficients (D T and D L) over the entire range of practical values of Sc and Pem.
Book ChapterDOI
One- and Two-Equation Models for Transient Diffusion Processes in Two-Phase Systems
Michel Quintard,Stephen Whitaker +1 more
TL;DR: In this paper, the authors examined the process of transient heat conduction for a two-phase system in terms of the method of volume averaging, and compared results from the two-equation model with results from a single-phase model.
Journal ArticleDOI
Flow and dispersion in porous media: Lattice‐Boltzmann and NMR studies
TL;DR: In this article, the results of lattice-Boltzmann simulations of the flow field through a random packing of spheres are compared with NMR velocimetry and propagator measurements.
Journal ArticleDOI
Convection, dispersion, and interfacial transport of contaminants: Homogeneous porous media
Michel Quintard,Stephen Whitaker +1 more
TL;DR: In this article, a macroscopic model for homogeneous porous media using the method of local volume averaging is developed for describing the transport of a contaminant in an aquifer containing a trapped non-aqueous-phase liquid.
Journal ArticleDOI
A Numerical Study of Thermal Dispersion in Porous Media
TL;DR: In this paper, thermal dispersion in convective flow in porous media has been numerically investigated using a two-dimensional periodic model of porous structure, where a macroscopically uniform flow is assumed to pass through a collection of square rods placed regularly in an infinite space.
References
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Journal ArticleDOI
Flow through Porous Media-the Ergun Equation Revisited
Journal ArticleDOI
Notes on the diffusion-type model for the longitudinal mixing of fluids in flow
Octave Levenspiel,W.K. Smith +1 more
TL;DR: In this paper, the Peclet number is used as the similarity criterion for longitudinal mixing of fluids in flow, which is analogous to and has the same units as the coefficient of molecular diffusion.
Journal ArticleDOI
A derivation of the equations for multi-phase transport
TL;DR: In this paper, a general form of the equations for multi-phase transport is derived and applied to the particular case of mass transport, with particular attention paid to the proper allocation of the transport mechanisms between convection and diffusion.
Journal ArticleDOI
Contribution to the theory of chromatography : Linear non-equilibrium elution chromatography
TL;DR: In this paper, the Hermite polynomials were used to solve the problem of elution chromatography and the first moment is of basic significance for the determination of retention time.
Journal ArticleDOI
Frontal solution program for unsymmetric matrices
TL;DR: A frontal solution program is presented which may be used for the solution of unsymmetric matrix equations arising in certain applications of the finite element method to boundary value problems based on the Gaussian elimination algorithm.