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RANS modelling of some strongly swirling aerospace flows

Published online by Cambridge University Press:  05 August 2009

Timothy J. Craft ,
Hector Iacovides  and
Brian E. Launder
Timothy J. Craft
Affiliation:
School of MACE, University of Manchester, PO Box 88, Manchester M60 1QD, UK
Hector Iacovides
Affiliation:
School of MACE, University of Manchester, PO Box 88, Manchester M60 1QD, UK
Brian E. Launder
Affiliation:
School of MACE, University of Manchester, PO Box 88, Manchester M60 1QD, UK
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Abstract

Progress is reported on the modelling, via RANS closures, of two swirling turbulent flows important in aeronautics: the trailing wing-tip vortex and the flow in rotor-stator cavities. For the former the decay of the vortex is only well captured at second-moment level while, for the latter, an unsteady flow computation brings out large-scale organized structures, with the number of structures varying with cavity aspect ratio and Reynolds number, a result qualitatively in accord with experiment.

Keywords

ModellingRANSfluids dynamics unsteady flowslarge-scale organized structuresModélisationRANSécoulements instationnairesécoulements en rotationcouche d'Ekman
Type
Research Article
Information
Mechanics & Industry , Volume 10 , Issue 3-4: 19e Congrès français de mécanique (CFM 2009) , May 2009 , pp. 171 - 174
Copyright
© AFM, EDP Sciences, 2009

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References

Lien, F.-S., Leschziner, M.A., Upstream monotonic interpolation for scalar transport with application to complex turbulent flows, Int J. Num Meth. Fluids 19 (1994) 527–548 CrossRef
Craft, T.J., Gerasimov, A.V., Launder, B.E., Robinson, C.R., A computational study of the near-field generation and decay of wing-tip vortices, Int. J. Heat Fluid Flow 27 (2006) 684–695 CrossRef
J.S. Chow, G. Zilliac, P. Bradshaw, Turbulence measurements in the near field of ma wingtip vortex, NASA Tech Mem. (1997) 110418
Craft, T.J., Ince, N.Z., Launder, B.E., Recent developments in 2nd-moment closure for buoyancy-affected flows, Dynamics of Atmospheres & Oceans 25 (1996) 99–114 CrossRef
Craft, T.J., Iacovides, H., Launder, B.E., Zacharos, A., Some swirling flow challenges for turbulent CFD, Flow Turb. Comb. 80 (2008) 419–434 CrossRef
Czarny, O., Iacovides, H., Launder, B.E., Precessing vortex structures in turbulent flow within rotor-stator disc cavities, Flow, Turb. Comb. 69 (2002) 51–61 CrossRef
A. Zacharos, Ph.D. Thesis, School of Mechanical, Aerospace & Civil Eng'g, University of Manchester, 2009
H. Iacovides, B.E. Launder, A. Zacharos, Proc 6th Turbulence & Shear-Flow Phenomena Conferece, Seoul, Korea, June 2009
H. Iacovides, K.S. Nikas, M. Te Braak, 1996, Turbulent flow computations in rotating cavities using low-Reynolds-number models, Paper No ASME-96-GT-159, Int. Gas Turb & Aero Congress, Birmingham, UK