A note on the modelling of lubrication forces in unresolved simulations

Nijssen, T.M.J.; Ottens, M.; Padding, J.T.

doi:10.1016/j.powtec.2022.118017

A note on the modelling of lubrication forces in unresolved simulations

Title

A note on the modelling of lubrication forces in unresolved simulations

Author

Nijssen, T.M.J. (TU Delft BT/Bioprocess Engineering)
Ottens, M. (TU Delft BT/Design and Engineering Education)
Padding, J.T. (TU Delft Complex Fluid Processing)

Date

2023

Abstract

Lubrication forces play a major role in the behaviour of fluid–solid systems, where they affect the collisions between particles. Current implementations of lubrication forces in unresolved simulations often suffer from shortcomings, such as neglecting parts of the physics or relying on arbitrarily defined parameters. In this short communication, we propose a novel implementation, rigorously defined based on physical and numerical factors. Both particle roughness and deformation are considered, and the model accuracy is demonstrated through comparison with experimental results.

Subject

CFD-DEM
Fluid–solid systems
Lubrication force
Multiphase modelling
Unresolved simulations

To reference this document use:

http://resolver.tudelft.nl/uuid:a67a6d68-3868-4ace-ae7f-358491f521f7

DOI

https://doi.org/10.1016/j.powtec.2022.118017

ISSN

0032-5910

Source

Powder Technology, 413

Part of collection

Institutional Repository