Iterative Brinkman penalization for simulation of impulsively started flow past a sphere and a circular disc

Henrik Juul Spietz, Mads Mølholm Hejlesen, Jens Honore Walther

Research output: Contribution to journalJournal articleResearchpeer-review

180 Downloads (Pure)

Abstract

We present a Brinkman penalization method for three-dimensional (3D) flows using particle vortex methods, improving the existing technique by means of an iterative process. We perform simulations to study the impulsively started flow past a sphere at Re=1000and normal to a circular disc at Re=500. The simulation results obtained for the flow past a sphere are found in qualitative good agreement with previously published results obtained using respectively a 3D vortex penalization method and a 3D vortex method combined with an accurate boundary element method. From the results obtained for the flow normal to a circular disc it is found that the iterative method enables the use of atime step that is one order of magnitude larger than required by the standard non-iterative Brinkman penalization method.
Original languageEnglish
JournalJournal of Computational Physics
Volume336
Pages (from-to)261–274
ISSN0021-9991
DOIs
Publication statusPublished - 2017

Keywords

  • Vortex method
  • Brinkman penalization
  • 3D flow
  • Sphere
  • Disc

Fingerprint Dive into the research topics of 'Iterative Brinkman penalization for simulation of impulsively started flow past a sphere and a circular disc'. Together they form a unique fingerprint.

Cite this