Effect of drag models on the accumulation of heavy particles in a circular bounded vortex flow

Xiaoke Ku, T. Lovas, M. van Sint Annaland, Rob Hagmeijer

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

1 Citation (Scopus)

Abstract

In this paper, a combination scheme of a discrete element method and an immersed boundary method has been developed and used to investigate the effect of three well-known drag models (Gidaspow, Di Felice and EHKL) on the accumulation of heavy particles in a circular bounded vortex flow. The inter-particle collisions are resolved by a hard-sphere model. For a single particle, results show that the particle will spiral into an accumulation point located near the stagnation point of the flow field for all the drag models. The rate at which a particle approaches towards the accumulation point is fastest for EHKL model and slowest for Di Felice model. However, for a group of particles, there no exists a stable accumulation point owing to the strong inter-phase interactions. Instead most particles are expelled from the circular domain and accumulate on the confining wall for all the drag models. The percentage of accumulated particles on the wall is largest for Di Felice model.
Original languageEnglish
Title of host publicationProceedings of the International Conference on Numerical Analysis and Applied Mathematics 2014 (ICNAAM-2014)
EditorsT.E. Simons, Ch. Tsitouras
PublisherAIP Publishing LLC
Pages030022-
ISBN (Print)9780735412783
DOIs
Publication statusPublished - 22 Sep 2015
Event12th International Conference of Numerical Analysis and Applied Mathematics 2014 - Rodos Palace Hotel, Rhodes, Greece
Duration: 22 Sep 201428 Sep 2014
Conference number: 12
http://history.icnaam.org/icnaam_2014/index.htm

Publication series

Name
PublisherAIP Publishing LLC
Volume1648
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference12th International Conference of Numerical Analysis and Applied Mathematics 2014
Abbreviated titleICNAAM 2014
CountryGreece
CityRhodes
Period22/09/1428/09/14
Internet address

Keywords

  • METIS-315347
  • IR-99147

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