Aerodays 2011 - Transport Research & Innovation Portal
Aerodays 2011 - Transport Research & Innovation Portal
Aerodays 2011 - Transport Research & Innovation Portal
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<strong>Aerodays</strong> <strong>2011</strong> - REMFI<br />
WP3<br />
Sting mounting arrangement investigation<br />
March <strong>2011</strong><br />
Twin y)<br />
sting<br />
boom<br />
location<br />
effect<br />
• CFD capable of reproducing interference effects (RANS<br />
necessary)<br />
• Wing downwash modified<br />
• Shock induced separation and turbulence effects (strong Re<br />
dependency)<br />
• Strong disturbance of supersonic flow around wing<br />
• High sensitivity to TSR geometry and location (strongest at<br />
innermost position)<br />
• Combination of advantages of experimental and numerical<br />
approaches delivers enhanced insight<br />
Standard Split Gap<br />
Labyrinth-type Split Gap<br />
Split<br />
fuselage<br />
gap<br />
effect<br />
• Smooth dependence of drag, lift and moment coefficients with M,<br />
Re and angle of attack<br />
• Fuselage flow field and gap flow field are quasi-independent for<br />
situations without deflection<br />
• Insertion of deflection angle in the rear end generates a high<br />
crossflow through the gap, with major effect on the boundary layer.<br />
• Internal gap recirculation<br />
• Irrelevant effect of gap location<br />
• Relevant suction effect with gap width due to recirculation<br />
• Labyrinth gap reduces gap pressure correction<br />
© AIRBUS Operations S.L. All rights reserved. Confidential and proprietary document.
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