[Soft-matter] Soft Matter and Complex Systems Seminar on 13 Oct 2023

[Maciej Lisicki]

Dear Soft Matter & Complex Systems Colleagues and Friends,

On Friday 13 October 2023 at 9:30 AM at the UW Faculty of Physics (Pasteura 5, Warsaw; room 1.40) we are hosting a seminar during which

Tomasz Szawełło (FUW)

will give a talk

How dissolution is altered by precipitation: a network model of a porous medium

Abstract
We consider a porous medium infiltrated by a reactive fluid that triggers coupled dissolution/precipitation reactions at pore surfaces. To study these processes, we model the porous medium as a system of interconnected pipes (Budek, 2012) with the diameter of each segment increasing in proportion to the local reactant consumption. We investigate different evolution regimes, analysing the feedback between dissolution and precipitation and considering different models of reactive area evolution, including passivation processes on mineral surfaces. We benchmark the model against the experimental results of Poonoosamy et al. (2020).

Budek, A., et al. (2012), Network models of dissolution of porous media. Phys. Rev. E, 86, 056318.
Poonoosamy, J., et al. (2020), Effects of solution supersaturation on barite precipitation in porous media and consequences on permeability: Experiments and modelling. Geochim. Cosmochim. Acta., 270: 43-60.

We warmly welcome everyone to attend the talk and the Soft Matter Coffee Break after the seminar, held in room 2.63 (2nd floor).

Maria Ekiel-Jeżewska
Maciej Lisicki
Piotr Szymczak
Panagiotis Theodorakis
Marek Trippenbach

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