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1 IFPEN - IFP Energies nouvelles 2 CASTOR - Control, Analysis and Simulations for TOkamak Research CRISAM - Inria Sophia Antipolis - Méditerranée 3 JAD - Laboratoire Jean Alexandre Dieudonné

Abstract : Reservoir simulation involves to compute dynamic flow of different phases ina porous medium. The initial state of the reservoir is usually precomputed viageo-statistics methods, extrapolating measures of the terrain. so, the inputof reservoir simulation is given as a fine mesh containing heterogeneous dataIn this paper, we describe an agglomeration strategy, to dynamicallycoarsen this fine hex-dominant mesh. The adaptivitymay be driven by physics and-or geometric estimators. Ideally, the coars-ening should be applied locally in low gradient regions, whereas high gradientregions keep the fine mesh.

Keywords : Mesh Adaptation Hexaedral mesh Reservoir simulation

Autor: Pierre Cargemel - Youssef Mesri - Hervé Guillard -



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