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6 Result(s)

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  1. No Access

    Article

    A low-dimensional subsurface model for saturated and unsaturated flow processes: ability to address heterogeneity

    A low-dimensional model that describes both saturated and unsaturated flow processes in a single equation is presented. Subsurface flow processes in the groundwater, the vadose zone, and the capillary fringe a...

    Sylvain Weill, Frederick Delay, Yi Pan, Philippe Ackerer in Computational Geosciences (2017)

  2. No Access

    Article

    Accuracy and efficiency of time integration methods for 1D diffusive wave equation

    The diffusive wave approximation of the Saint-Venant equations is commonly used in hydrological models to describe surface flow processes. Numerous numerical approaches can be used to solve this highly nonline...

    Sylvain Weill, Raphael di Chiara-Roupert, Philippe Ackerer in Computational Geosciences (2014)

  3. 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)

  4. Article

    Preface

    Philippe Ackerer in Computational Geosciences (2010)

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  5. 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)

  6. 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)