8th European Postgraduate Fluid Dynamics Conference

6th – 9th July 2016
Warsaw, Poland

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Modeling of heat and mass transfer in reacting porous media

Kamil Kwiatkowski1, Paweł Jan Żuk2
1Institute of Theoretical Physics, Faculty of Physics, University of Warsaw; Interdisciplinary Centre for Mathematical and Computational Modelling
2Institute of Theoretical Physics, Faculty of Physics, University of Warsaw
In thermal decomposition of wood a reacting porous material is evolving and its properties are changing in time.A complex evolution of porous structure of wood takes place while lignocellulose material is conversed into flammable gases, spectrum of liquids and charcoal. Evolution of porous medium in turn has an impact on the flow and heat transfer and possibly modifies whole process.

In this contribution we review the recent developments in modelling and simulations of reacting porous media in OpenFOAM and OpenFOAM-extended (foam) with an emphasis put on industrial processes of gasification. We discuss their advantages and stress their limitations, particularly to simulate biomass gasification.

In this work, we present a revised solver biomassGasificationFoam together with a complementary library biomassGasificationMedia. The solver is developed to simulate heat and mass flow inside reacting porous materials – with constantly evolving structure, composition and parameters.
Keywords: Applied fluid dynamics, Multiphase flows