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CFD study of vortex separation phenomena on blunt diamond wing
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering.
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering.
2015 (English)In: 53rd AIAA Aerospace Sciences Meeting, American Institute of Aeronautics and Astronautics, 2015Conference paper (Refereed)
Abstract [en]

The details of how a vortex lifts off a blunt swept leading edge are not so well understood, and this paper undertakes a comprehensive CFD study of the phenomena. Current day experience shows that the location for the start of the vortex depends on the grid resolution of the numerical solution and the physical modeling used to account for the turbulence in the flow. In this work multiple levels of grid refinement, together with ap- propriate adaptation of the grids, are carried out to the extent that stabilizes the location of the separation. Various turbulence models are also used in combination with the grid sequencing showing a strong effect on vortex separation position due to chosen turbulence model.

Place, publisher, year, edition, pages
American Institute of Aeronautics and Astronautics, 2015.
Keyword [en]
Aerospace engineering, Computational fluid dynamics, Superconducting films, Turbulence models, Grid refinement, Grid resolution, Multiple levels, Numerical solution, Physical model, Vortex lift, Vortex separation, Vortex flow
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-194679DOI: 10.2514/6.2015-0291ScopusID: 2-s2.0-84980351311ISBN: 9781624103438 (print)OAI: oai:DiVA.org:kth-194679DiVA: diva2:1050448
Conference
53rd AIAA Aerospace Sciences Meeting, 2015, 5 January 2015 through 9 January 2015
Note

QC 20161129

Available from: 2016-11-29 Created: 2016-10-31 Last updated: 2016-11-29Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
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Language
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  • nn-NB
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Output format
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