Prediction of Turbulent Reactive Flows by means of Numerical Simulations

The prediction of turbulent reactive flows with numeric simulations

Predicting turbulent flows with (bio)chemical reactions accurately is essential for development of technology and fundamental research in a wide range of applications. Biosystems, chemical reactors, internal combustion engines, furnaces and fires are all considered by the multidisciplinary consortium. The common feature in numerical simulations is turbulence with detailed (bio-)chemical kinetics, for which advanced models are applied, exchanged and further developed where necessary.

Anaerobic digestion is one of the most widespread technologies for sludge treatment, the by-product of wastewater treatment, in which a methane-rich biogas stream is produced. When scaled-up, transport phenomena become more important and the relation between full-scale flow patterns and biogas yield is still not well understood. Since the digester sludge behaves as a non-Newtonian fluid, ensuring homogeneous properties in the whole full-scale digester becomes a challenge and might not even be wanted. Computational Fluid Dynamics (CFD) modelling techniques allows us to develop a more in-depth understanding of full-scale systems by studying its flow field. Additionally, it enables for the first time to simultaneously study the interaction between (bio)chemical reactions and hydrodynamics. Within this project, special attention is paid to 1) Properly characterizing the digester fluid properties (density and viscosity) and, 2) Perform a CFD validation test to ensure the correct modelling of turbulence and its correct dissipation with these types of fluids.

The project will work with OpenFOAM®, an open-source CFD toolbox. The project repository on GitHub will allow the users to valorise code and take advantage of an inventorised code.

Project duration: 2016-01-01 - 2019-12-31

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Ingmar Nopens
Department of Applied Mathematics, Biometrics and Process Control
Coupure Links 653
9000 Gent
Tel: +32(0)92645939

Last update: 01 december 2008,

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