A parameter-free and monolithic approach for multiscale simulations of flow, transport, and chemical reactions in porous media

Z Ou, Q Xue, Y Wan, H Wei, C Chi… - Journal of Computational …, 2024 - Elsevier
Traditional approaches for transport in porous media rely on empirical hydrodynamic/
transport parameters to quantify the interfacial exchange terms between fluid and solid …

Flow field characterisation of gaseous flow in a packed bed by particle image velocimetry

C Velten, K Zähringer - Transport in Porous Media, 2023 - Springer
Packed beds with gaseous flow are used in many industrial processes with high energy and
resource consumption. This study provides velocity data of the gas flow through a model …

Ray tracing particle image velocimetry–Challenges in the application to a packed bed

C Velten, M Ebert, C Lessig, K Zähringer - Particuology, 2024 - Elsevier
Abstract Ray tracing Particle Image Velocimetry (RT-PIV) is an optical technique for high
resolution velocity measurements in challenging optical systems, such as transparent …

Experimental and numerical investigation to elucidate the fluid flow through packed beds with structured particle packings

S Patil, C Gorges, JL Bonilla, M Stelter, F Beyrau… - Particuology, 2024 - Elsevier
The present paper presents an experimental and numerical investigation of the dispersion of
the gaseous jet flow and co-flow for the simple unit cell (SUC) and body-centred cubic (BCC) …

[HTML][HTML] A reduced model for particle calcination for use in DEM/CFD simulations

L Mieg, T Bergold, EI Mahiques, V Scherer… - Particuology, 2024 - Elsevier
We treat the accurate simulation of the calcination reaction in particles, where the particles
are large and, thus, the inner-particle processes must be resolved. Because these …

Pyrolysis of Spherical Wood Particles in a Packed Bed–Comparison between Resolved and Unresolved Discrete Element Method/Computational Fluid Dynamics

B Jaeger, E Illana Mahiques, S Wirtz… - Chemical Engineering …, 2023 - Wiley Online Library
The combined discrete element method/computational fluid dynamics (DEM/CFD) approach
allows for the description of reacting granular assemblies passed by a gas flow. Especially …

A one-field fluid/meso-structure coupling approach for multiscale transport in heterogeneous porous media

Z Ou, Q Xue, Y Wan, H Wei, L Liu, F Gharibi… - Physics of …, 2024 - pubs.aip.org
Modeling transport phenomena within heterogeneous porous media poses considerable
challenges, particularly on account of the complexity of the involved geometries combined …

Heat transfer analysis in particle-laden flows using the immersed boundary method

AA Zaidi - Particuology, 2024 - Elsevier
This paper investigates an efficient immersed boundary method (IBM) for multiple-core CPU
machines with local grid refinement for the calculation of heat transfer between fluids and …

Particle-resolved simulations and measurements of the flow through a uniform packed bed

W Sadowski, M Sayyari, F di Mare, C Velten… - Physics of …, 2024 - pubs.aip.org
The present study focuses on the assessment of the performance of a finite volume method
based, particle-resolved simulation approach to predict the flow through a model packed …

Shape-changing particles for locally resolved particle geometry in DEM simulations

E Illana, K Qyteti, M Scharnowski, M Brömmer, S Wirtz… - Particuology, 2024 - Elsevier
Taking into account the complex shape of particles in discrete element method (DEM)
simulations of large-scale granular systems is computationally demanding due to the time …