An ELLAM Approximation for Advective-Dispersive Transport with Nonlinear Sorption

Abstract

We consider an Eulerian-Lagrangian localized adjoint method (ELLAM) applied to nonlinear model equations governing solute transport and sorption in porous media. Solute transport in the aqueous phase is modeled by standard advection and hydrodynamic dispersion processes, while sorption is modeled with a nonlinear local equilibrium model. We present our implementation of finite volume ELLAM (FV-ELLAM) and finite element (FE-ELLAM) discretizations to the reactive transport model and evaluate their performance for several test problems containing self-sharpening fronts.

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Document Details

Document Type
Technical Report
Publication Date
Feb 28, 2005
Accession Number
ADA444261

Entities

People

  • Cass T. Miller
  • Christopher E Kees
  • Matthew W. Farthing
  • Thomas F. Russell

Organizations

  • University of North Carolina at Chapel Hill

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Boltzmann Equation
  • Boundaries
  • Cauchy Problem
  • Chemical Reactions
  • Differential Equations
  • Ecology
  • Environmental Health
  • Equations
  • Failure Mode And Effect Analysis
  • Nonlinear Systems
  • Numerical Integration
  • Payload
  • Smoothing (Mathematics)
  • Solid Phases
  • Sorption
  • Transport Ships
  • Traveling Waves

Readers

  • Agricultural Chemistry/Soil Science
  • Computational Fluid Dynamics (CFD)