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Mesoscale models of flow and transport in porous media
=Alexandre Tartakovsky, Ph.D.= ===November 8, 2012=== "Mesoscale models of flow and transport in porous media" Reactive transport in porous media is a classic multiscale problem. Effective reactive transport models often do not provide accurate predictions of non-linear multiphase flow and reactive transport. Pore-scale models are based on fundamental conservation laws. These models are more accurate but computationally expensive. I will present several novel mesoscale methods, including a Langevin approach and a computational closure method. The purpose of these methods is to provide an accurate description of the system averages while retaining critical pore-scale information. The advantages, range of applicability and limitations of the mesoscale methods will be discussed. Bio of speaker Dr. Alexandre Tartakovsky is a scientist in the Computational Science and Mathematics Division at the Pacific Northwest National Laboratory. The main focus of Dr. Tartakovsky's research is multiscale modeling and uncertainty quantification with application to flow and reactive transport in porous media and other complex natural and engineering problems. Dr. Tartakovsky joined PNNL in 2004. He received his doctorate from the University of Arizona in 2002 and completed a two-year post-doctoral research program at Idaho National Laboratory before joining PNNL. Dr. Tartakovsky is a recipient of 2008 Presidential Early Career Award for Scientists and Engineers and 2010 DOE Early Career Research Program Award.
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