Flow over 50o Delta Wings with Different Leading-Edge Radii | Zendy

N.G. Verhaagen | Zendy

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Flow over 50o Delta Wings with Different Leading-Edge Radii

Author(s) -

N.G. Verhaagen

Publication year - 2011

Publication title -

50th aiaa aerospace sciences meeting including the new horizons forum and aerospace exposition

Language(s) - English

Resource type - Conference proceedings

DOI - 10.2514/6.2011-991

Subject(s) - delta wing , radius , reynolds number , vortex , particle image velocimetry , flow (mathematics) , flow visualization , leading edge , mechanics , enhanced data rates for gsm evolution , physics , geometry , mathematics , turbulence , engineering , computer science , telecommunications , computer security

The experimental study focuses on the effects of the leading-edge radius on the flow over 50º swept delta wing models. Three models were tested, one model has a sharp leading edge and two other have a semi-circular leading edge of different radius. The vortical flow on and off the surface of the models was investigated using an oil-flow visualization and a Stereo Particle Image Velocimetry (SPIV) technique. The leading-edge radius is shown to affect the location, size and strength of the vortices and also the vortex core breakdown location over the models. As a result of this, the forces and moment acting on a 50o delta wing are also affected. The study further shows that the structure of the flow over such a wing is weakly dependent on Reynolds number

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