Direct numerical simulations of flow around non-spherical particles

Sathish Krishnan Pacha Sanjeevi

Research output: ThesisDissertation (TU Delft)

80 Downloads (Pure)

Abstract

This work focuses on creating a recipe for parametrizing flow around assemblies of non-spherical particles. A multi-relaxation time lattice Boltzmann method (MRT-LBM) is used to simulate the flow. The research focuses on 3 different developments. First, different boundary conditions available in the literature for LBM are tested to identify the best for the flow problem. The second part of the thesis focuses on developing more widely applicable scaling laws for drag and lift of various isolated non-spherical particles. In the third part, a recipe to describe hydrodynamic forces on assemblies of axisymmetric, non-spherical particles is proposed. With the described parameters, drag, lift and torque correlations are proposed accordingly. This research is funded by the European Research Council under its consolidator grant scheme, contract no. 615096 (NonSphereFlow).
Original languageEnglish
QualificationDoctor of Philosophy
Awarding Institution
  • Delft University of Technology
Supervisors/Advisors
  • Padding, J.T., Supervisor
  • Breugem, W.P., Supervisor
Thesis sponsors
Award date2 Jul 2019
Print ISBNs978-94-6375-435-4
DOIs
Publication statusPublished - 2019

Keywords

  • Direct numerical simulations
  • Particulate flows
  • Non-spherical particles
  • Lattice Boltzmann method

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