Seminario GHS: Nonlinear Dispersion in Multicomponent Reactive Transport with Species Specific Parameters
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GRUPO DE HIDROLOGÍA SUBTERRÁNEA
(Unidad asociada CSIC-UPC)
Fecha: Jueves 16 de Junio a las 15.00h
Ponente: Rodrigo Perez
Title:Nonlinear Dispersion in Multicomponent Reactive Transport with Species Specific Parameters
Abstract:
Experimental studies on solute transport have shown the influence of species specific properties on mechanical dispersion with a nonlinear
dependence on flow velocities, even in advection dominated scenarios. This is contrary to classical linear models where dispersivities act as
proportionality factor. This seminar discusses nonlinear formulations for mechanical dispersion and outlines some consequences for reactive
transport methods based on the assumption of same dispersion for all species. Substance specific dispersion leads to another set of nonlinear
transport equations, in this case, for chemical components. An overview of further transport processes for electrically charged substances with
different transport coefficients is also discussed. In this case, equations for all substances are coupled satisfying principles of electroneutrality
which increase the nonlinearity of the reactive transport problem.
Presentación del meet: link
