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4 Result(s)

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  1. No Access

    Article

    Grid convergence for numerical solutions of stochastic moment equations of groundwater flow

    We provide qualitative and quantitative assessment of the results of a grid convergence study in terms of (a) the rate/order of convergence and (b) the grid convergence index, GCI, associated with the numerica...

    Chuan-An **a, Alberto Guadagnini, Bill X. Hu… in Stochastic Environmental Research and Risk… (2019)

  2. No Access

    Article

    An Efficient Implementation of the Method of Lines for Multicomponent Reactive Transport Equations

    Modeling reactive transport with chemical equilibrium reactions requires solution of coupled partial differential and algebraic equations. In this work, two formulations are developed to combine the method of ...

    Marwan Fahs, Anis Younes, Philippe Ackerer in Water, Air, & Soil Pollution (2011)

  3. No Access

    Article

    On the Efficiency of the Direct Substitution Approach for Reactive Transport Problems in Porous Media

    Nonlinear reactive transport problems can be solved using the Operator Splitting (OS) approach, where transport and reaction processes are separated or the Direct Substitution Approach (DSA) where chemical and...

    Marwan Fahs, Jérôme Carrayrou, Anis Younes… in Water, Air, and Soil Pollution (2008)

  4. No Access

    Chapter and Conference Paper

    The Hierarchical Organization of Experiments, a Leading Approach in Engineering Science

    Many complex phenomena influence the flow of fluids and the transport of contaminants in the subsurface environment.

    Lothaire Zilliox, Gerhard Schäfer… in Groundwater and Subsurface Remediation (1996)