Subsonic Analysis of 0.04-Scale F-16xl Models Using an Unstructured Euler Code

By National Aeronautics and Space Administration

The subsonic flow field about an F-16XL airplane model configuration was investigated with an inviscid unstructured grid technique. The computed surface pressures were compared to wind-tunnel test results at Mach 0.148 for a range of angles of attack from 0 deg to 20 deg. To evaluate the effect of grid dependency on the solution, a grid study was performed in which fine, medium, and coarse grid meshes were generated. The off-surface vortical flow field was locally adapted and showed improved correlation to the wind-tunnel data when compared to the nonadapted flow field. Computational results are also compared to experimental five-hole pressure probe data. A detailed analysis of the off-body computed pressure contours, velocity vectors, and particle traces are presented and discussed. Lessard, Wendy B. Langley Research Center...

• Format: Paperback
• Language: English
• ISBN: 1730946216
• ISBN13: 9781730946219
• Release Date: January 1
• Publisher: Independently Published
• Length: 82 Pages
• Weight: 0.47 lbs.
• Dimensions: 0.2" x 8.5" x 11.0"