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 …
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 …
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 …
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
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) …
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 …
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 …
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 …
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 …
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
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 …
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 …
simulations of large-scale granular systems is computationally demanding due to the time …