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Comptes Rendus Physique
Volume 6, n° 4-5
pages 451-466 (mai-juin 2005)
Doi : 10.1016/j.crhy.2005.05.005
Predicting the near-field evolution of airplane trailing vortices
Prédiction de lʼévolution des tourbillons de sillage dʼavions dans le champ proche

Michael Czech a, Gregory Miller a, Jeffrey Crouch a, , Michail Strelets b
a Boeing Commercial Airplanes, Seattle, USA 
b Federal Scientific Center Applied Chemistry', St Petersburg, Russia 

Corresponding author.

The near-field (up to about 20 spans) development of trailing vortices is investigated experimentally and numerically. Computational Fluid Dynamics (CFD) results are based on the solution of quasi-3D Reynolds-averaged Navier-Stokes equations with a one-equation turbulence model. The inclusion of turbulence effects is found to be essential to capturing the correct near-field development. The CFD results are shown to be in very good agreement with experimental wake-survey results out to ten spans. Results show that wing loadings typical of commercial airplanes in a landing configuration can lead to multiple, or single vortex pairs, at distances of fifteen to twenty spans downstream. To cite this article: M. Czech et al., C. R. Physique 6 (2005).

The full text of this article is available in PDF format.

Le développement dʼun sillage tourbillonnaire dans le champ proche dʼun avion (jusquʼà 20 envergures) est étudié expérimentalement et numériquement. Lʼapproche numérique est basée sur la résolution des équations de Navier-Stokes moyennées au sens de Reynolds, auxquelles on adjoint un modèle de turbulence à une équation de transport. On montre ainsi que les effets de turbulence jouent un rôle primordial sur la dynamique du sillage dans le champ proche. Les résultats numériques sont en très bon accord avec les résultats expérimentaux, jusquʼà environ 10 envergures. Les résultats montrent que les lois de charge typiques dʼun avion commercial en configuration dʼatterrissage peuvent aboutir, à des distances de quinze à vingt envergures, à des configurations tourbillonnaires très diverses, comportant un seul ou plusieurs dipôles. Pour citer cet article : M. Czech et al., C. R. Physique 6 (2005).

The full text of this article is available in PDF format.

Keywords : CFD, RANS, Turbulence, Vortices, Vortex merger, Wake survey

Mots-clés : CFD, RANS, Turbulence, Tourbillons, Fusion de tourbillons, Mesures

© 2005  Académie des sciences@@#104156@@
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