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 language | English |
|---|---|
| Journal | Journal of Computational Physics |
| Volume | 336 |
| Pages (from-to) | 261–274 |
| ISSN | 0021-9991 |
| DOIs | |
| Publication status | Published - 2017 |
Keywords
- Vortex method
- Brinkman penalization
- 3D flow
- Sphere
- Disc
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