Side-Force Alleviation on Slender, Pointed Forebodies at High Angles of Attack

By: Nasa, National Aeronautics and Space Adm

A new device was proposed for alleviating high angle-of-attack side force on slender, pointed forebodies. A symmetrical pair of separation strips in the form of helical ridges are applied to the forebody to disrupt the primary lee-side vortices and thereby avoid the instability that produces vortex asymmetry. Preliminary wind tunnel tests at Mach 0.3 and Reynolds no. 5,250,000 on a variety of forebody configurations and on a wing-body combination at angles of attack up to 56 degrees, demonstrated the effectiveness of the device. Rao, D. M. Unspecified Center NASA-CR-145361 NSG-1315; RTOP 505-11-13-03

• Format: Paperback
• Language: English
• ISBN: 1720211833
• ISBN13: 9781720211839
• Release Date: January 1
• Publisher: Independently Published
• Length: 28 Pages
• Weight: 0.20 lbs.
• Dimensions: 0.1" x 8.5" x 11.0"