Lagrangian-Eulerian approach to modeling multicomponent reactive transport

G. T. Yeh, J. P. Gwo

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations

Abstract

A Lagrangian-Eulerian (LE) approach is applied to solving reactive chemical transport problems of multi-component systems. The problem of negative concentrations is overcome with the LE approach. Two techniques of treating the Lagrangian step are included: one is to use the retarded velocity and the other is to adopt the pore velocity. The advantages and disadvantages of both techniques are compared and discussed. An attendant advantage of using the LE approach is that the resulting matrix equation is positive definite; thus one can use iteration methods, for example, the conjugate gradient method, to solve the matrix equation with convergency guaranteed.

Original languageEnglish
Title of host publicationComputational Methods in Subsurface Hydrology
EditorsG. Gambolati, A. Rinaldo, C.A. Brebbia, W.G. Gray, G.F. Pinder
PublisherPubl by Springer-Verlag Berlin
Pages419-427
Number of pages9
ISBN (Print)038752701X
StatePublished - 1990
EventProceedings of the 8th International Conference on Computational Methods in Water Resources - Venice, Italy
Duration: 11 Jun 199015 Jun 1990

Publication series

NameComputational Methods in Subsurface Hydrology

Conference

ConferenceProceedings of the 8th International Conference on Computational Methods in Water Resources
CityVenice, Italy
Period11/06/9015/06/90

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