Modeling the Pathways of Nonconservative Substances in Estuaries

by Tamara M. Wood, Oregon Graduate Inst, Beaverton, United States,
António M. Baptista, Oregon Graduate Inst, Beaverton, United States,

Document Type: Proceeding Paper

Part of: Estuarine and Coastal Modeling


ELAmet is a model for nonconservative chemical transport which solves the advection/dispersion/transformation equation using a modification of Eulerian-Lagrangian methods. In this paper we isolate the chemical transformation portion of the problem, present the equations that represent nonconservative chemical behavior in their general form, and discuss the method of solution. ELAmet decouples the time step used for solving diffusion from that used for solving the chemical transformations; some implications of this decoupling are discussed, with examples in a 1-dimensional domain.

Subject Headings: Estuaries | Chemical properties | Coupling | Sediment transport | Fluid flow | Water supply systems | Chemicals | Advection

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