Simulation of Dissolution and Precipitation in a Porous Medium with an Evolving Pore-Scale Geometry скачать в хорошем качестве

Simulation of Dissolution and Precipitation in a Porous Medium with an Evolving Pore-Scale Geometry

SIAM Geosciences Webinar Series Title: Modelling, upscaling and simulation of dissolution and precipitation in a porous medium with an evolving pore-scale geometry Date and Time: Thursday, February 9, 2022, 12:00pm Eastern time zone Speaker: Iuliu Sorin Pop, Hasselt University 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. To learn more about SIAM, visit https://www.siam.org/membership/activ...