SFB 1313 co-investigator Sorin Iuliu Pop, professor at the Hasselt University (Belgium), will give a talk in the framework of the SIAM Geosciences Webinar Series:
Date: Thursday, 10 February 2022
Time: 6:00 pm CET / 12 am ET
Speaker: Prof. Dr. Sorin Iuliu Pop, Hasselt University
Lecture title: "Modelling, upscaling and simulation of dissolution and precipitation in a porous medium with an evolving pore-scale geometry"
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Abstract
Processes of the highest societal relevance, like soil salinization or the production of geothermal energy, involve precipitation and dissolution processes in porous media. Of particular interest is the situation when such processes lead to changes at the scale of pores, affecting Darcy scale properties like the medium porosity or its permeability. In this presentation, we discuss different approaches for modelling precipitation and dissolution in porous media. Starting with models defined at the scale of pores, we employ homogenization techniques to derive models that are valid at the Darcy scale, thus better suited for numerical simulations. Particular attention is paid to the case where the geometry of the pores is changing in time, due to dissolution and precipitation. After this, different aspects related to the (adaptive) multi-scale iterative scheme are discussed.
About Sorin Pop
Sorin holds a PhD degree from the “Babeş-Bolyai” University in Cluj Napoca, Romania. Before UHasselt, he worked at universities in Germany, The Netherlands and Norway. His research interest is in mathematical analysis, numerical simulation and upscaling of mathematical models for porous media processes. This includes nonequilibrium models for subsurface flows (like hysteresis, dynamic capillarity), or dissolution and precipitation in porous media. The topics addressed include the existence and uniqueness of solutions, travelling waves, homogenization, or the convergence analysis for various discretization and linearization schemes.