N. Romijn’s research while affiliated with Eindhoven University of Technology and other places

... Besides these, for the area of multiphase flow CFD simulations, the development of PRCFD has provided an excellent modeling tool for detailed simulations of hydrodynamics in the structure of packed packing [23][24][25][26]. In addition, as a precise modeling tool for PRCFD simulations of packed bed hydrodynamics, it has been utilized for comparative analyses with other methods and measurement techniques, such as pore network modeling [27], Magnetic Resonance Imaging (MRI) [28], and Particle Image Velocimetry (PIV) regarding packed bed hydrodynamics [29]. Furthermore, CFD can be used to analyze the uneven flow within fixed-bed chromatography devices [30]. ...

Reference:

Particle-resolved computational fluid dynamics simulation of the heat transfer in fixed-bed reactors for heterogeneous catalysis: A review

... This phenomenon, known as wall channeling, becomes more pronounced as the column-to-particle diameter ratio decreases. The work was extended to particles with flat surfaces [19] and spherocylinders [20]. The comparison of the PNM results with PR-CD and Magnetic Resonance Imaging (MRI) showed that PNM is able to capture the obtained flow maldistribution for these more intrinsic particles as well. ...

Reference:

Mechanical Solute Dispersion in slender packed bed reactors: Comparing Pore Network Modeling and Particle-Resolved CFD

... This method effectively separated particles even when they were in close contact, i.e. 'touching' particles. The reconstruction error, calculated on bases of a synthetic packing containing 100 particles and considering the adopted image resolution, was approximately 0.03 mm for particle position [46]. ...

Reference:

Multi-scale Pore Network Modeling of a reactive packed bed