Evaluation of transition-sensitive eddy-viscosity turbulence models for separated flow in OpenFOAM

H. Fadhila, H. Medina, A. Beechook, S. Aleksandrova, S. Benjamin

Research output: Chapter in Book/Report/Conference proceedingConference proceeding

Abstract

A recently published transition-sensitive turbulence model, k-kL-ω-υ2 [1], is implemented in the open-source CFD package OpenFOAM, and its performance is evaluated in comparison with k-kL-ω [2] and υ2- f [3] models. On T3A and T3B flat plate cases, the k-kL-ω-υ2 model gives accurate transitional predictions. On a flapped NACA 23012 aerofoil, it is found to give only a small improvement over the k-kL-ω model (under 5% reduction in error for lift coefficient) compared with experimental results obtained at the Coventry University wind tunnel, showing limited effects of the extra transport equation which was added to sensitise the model to rotation and curvature effects. Assessment of fluctuating kinetic energy and the new wall-normal turbulent velocity scale shows overprediction near the wall compared to the υ2- f model which indicates a delayed prediction of separation.

Original languageEnglish
Title of host publicationInternational Conference of Numerical Analysis and Applied Mathematics, ICNAAM 2016
PublisherAmerican Institute of Physics Inc.
Volume1863
ISBN (Electronic)9780735415386
DOIs
Publication statusPublished - 21 Jul 2017
EventInternational Conference of Numerical Analysis and Applied Mathematics 2016 - Rhodes, Greece
Duration: 19 Sep 201625 Sep 2016

Publication series

NameAIP Conference Proceedings
PublisherAIP Publishing
Number1
Volume1863
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

ConferenceInternational Conference of Numerical Analysis and Applied Mathematics 2016
Abbreviated titleICNAAM 2016
CountryGreece
CityRhodes
Period19/09/1625/09/16

Keywords

  • boundary layers
  • eddy viscosity models
  • OpenFOAM
  • separated flows
  • transitional flows
  • Turbulence modeling

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Evaluation of transition-sensitive eddy-viscosity turbulence models for separated flow in OpenFOAM'. Together they form a unique fingerprint.

  • Cite this

    Fadhila, H., Medina, H., Beechook, A., Aleksandrova, S., & Benjamin, S. (2017). Evaluation of transition-sensitive eddy-viscosity turbulence models for separated flow in OpenFOAM. In International Conference of Numerical Analysis and Applied Mathematics, ICNAAM 2016 (Vol. 1863). [030034] (AIP Conference Proceedings; Vol. 1863, No. 1). American Institute of Physics Inc.. https://doi.org/10.1063/1.4992187