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

doi:10.1016/j.jcp.2017.01.064

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 journal › Journal article › Research › peer-review

356 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 language	English
Journal	Journal of Computational Physics
Volume	336
Pages (from-to)	261–274
ISSN	0021-9991
DOIs	https://doi.org/10.1016/j.jcp.2017.01.064
Publication status	Published - 2017

Keywords

Vortex method
Brinkman penalization
3D flow
Sphere
Disc

Access to Document

10.1016/j.jcp.2017.01.064

PreprintAccepted author manuscript, 3.96 MBLicence: CC BY-NC-ND

OpenUrl availability

Full text

Cite this

@article{1ebd4873ae08436a813cf894cbdadb2c,

title = "Iterative Brinkman penalization for simulation of impulsively started flow past a sphere and a circular disc",

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.",

keywords = "Vortex method, Brinkman penalization, 3D flow, Sphere, Disc",

author = "Spietz, {Henrik Juul} and Hejlesen, {Mads M{\o}lholm} and Walther, {Jens Honore}",

year = "2017",

doi = "10.1016/j.jcp.2017.01.064",

language = "English",

volume = "336",

pages = "261–274",

journal = "Journal of Computational Physics",

issn = "0021-9991",

publisher = "Academic Press",

}

TY - JOUR

T1 - Iterative Brinkman penalization for simulation of impulsively started flow past a sphere and a circular disc

AU - Spietz, Henrik Juul

AU - Hejlesen, Mads Mølholm

AU - Walther, Jens Honore

PY - 2017

Y1 - 2017

N2 - 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.

AB - 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.

KW - Vortex method

KW - Brinkman penalization

KW - 3D flow

KW - Sphere

KW - Disc

U2 - 10.1016/j.jcp.2017.01.064

DO - 10.1016/j.jcp.2017.01.064

M3 - Journal article

SN - 0021-9991

VL - 336

SP - 261

EP - 274

JO - Journal of Computational Physics

JF - Journal of Computational Physics

ER -

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

Abstract

Keywords

Access to Document

OpenUrl availability

Fingerprint

Cite this