Wave Concept in the Theory of Hydrodynamical Dispersion - a Maxwellian Type Approach

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Westerterp, K.R. and Kronberg, A.E. and Benneker, A.H. and Dil'man, V.V. (1996) Wave Concept in the Theory of Hydrodynamical Dispersion - a Maxwellian Type Approach. Transactions of the Institution of Chemical Engineers. Part A: Chemical engineering research and design, 74 (8). pp. 944-952. ISSN 0263-8762

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Abstract:A new approach to the modelling of chemical reactors and contactors is discussed. This approach argues that the dispersion should, under most circumstances, be based on Maxwell's, rather than Fick's diffusion law. As a pair of first-order partial differential equations of the hyperbolic type and requiring only inlet conditions, the wave model is more realistic physically, has a much wider range of validity and in many practical cases is simpler mathematically. Only mass transfer problems are considered, but the results apply equally well to the hydrodynamic dispersion of heat. It is explained why the standard dispersion model fails in many practical applications and why the new wave model gives much better results.
Item Type:Article
Copyright:© 1996 Elsevier
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Link to this item:http://purl.utwente.nl/publications/73347
Official URL:http://dx.doi.org/10.1205/026387696523111
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