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Calculation of dispersion coefficients by means of moments
Author(s) -
Horn F. J. M.
Publication year - 1971
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690170325
Subject(s) - dispersion (optics) , equivalence (formal languages) , euclidean space , mathematics , perturbation (astronomy) , mathematical analysis , statistical physics , physics , quantum mechanics , discrete mathematics
The problem of evaluating the coefficient of dispersion in a general linear two‐component chromatographic system is equivalent to a steady state source problem in multidimensional Euclidean space. The equivalence of the two physical problems provides an intuitive insight into the contributions of different transport processes to dispersion. For a wide class of systems the dispersion coefficient can be expressed as the maximum of a functional. This can be utilized in the numerical evaluation of dispersion coefficients and in the application of perturbation techniques.