Simple and inexpensive technique suppresses background noise generated by pores in wind tunnel wall lining and makes aerodynamic data more accurate and reliable. Porous walls are covered with wire-mesh screen. Screen offers smoother surface to airflow and damps vortexes and resonance caused by wall perforations; yet it provides enough open area for perforations to cancel shock waves generated by model.
Quiet wind tunnel
NASA Tech Briefs ; 2 , 4
1978-03-01
Miscellaneous
No indication
English
Quiet Supersonic Wind Tunnel Development
NTRS | 1994
|NASA Langley Mach 6 Quiet Wind-Tunnel Performance
AIAA | 1997
|Optimization of a Mach-6 Quiet Wind-Tunnel Nozzle
AIAA | 2017
|Performance of the NASA-Langley Mach 6 Quiet Wind Tunnel
AIAA | 1996
|