Sedimentation of arbitrary shaped particles

In this project the sedimentation behaviour of arbitrary shaped particles which cannot be described by simple analytical equations is investigated. Considered are dilute as well as concentrated suspensions. For the simulations a new developed homogenised Lattice Boltzmann method is applied. The influence of the particles' shapes on the behaviour of the whole suspension is studied, aiming at the development of new models to improve the prediction of sedimentation processes.

Related Publications:

  • Krause, M. J., Klemens, F., Henn, T., Trunk, R., & Nirschl, H. (2017). Particle flow simulations with homogenised lattice Boltzmann methods. Particuology, 34, 1–13.
  • Trunk, R., Marquardt, J., Thäter, G., Nirschl, H., & Krause, M. J. (2018). Towards the simulation of arbitrarily shaped 3D particles using a homogenised lattice Boltzmann method. Computers & Fluids, 172, 621–631.
  • Bretl, C., Trunk, R., Nirschl, H., Thäter, G., Dorn, M., & Krause, M. J. (2021). Preliminary Study of Particle Settling Behaviour by Shape Parameters via Lattice Boltzmann Simulations. In W. Nagel, D. Kröner, & M. Resch (Eds.), High Performance Computing in Science and Engineering ’20 (pp. 245–259). Springer.
  • Trunk, R., Bretl, C., Thäter, G., Nirschl, H., Dorn, M., & Krause, M. J. (2021). A Study on Shape-Dependent Settling of Single Particles with Equal Volume Using Surface Resolved Simulations. Computation, 9(4), 40.

Sedimentation of arbitrary-shaped particles (2D) KIT
Figure 1: Sedimentation of arbitrary-shaped particles (2D).
Sedimentation of arbitrary-shaped particles (3D) KIT
Figure 2: Sedimentation of arbitrary-shaped particles (3D).