The 1×1 is a facility located in the Engine Research Building (ERB) at NASA’s Glenn Research Center in Cleveland, Ohio. This facility is used to conduct fundamental research in supersonic and hypersonic fluid mechanics, supersonic-vehicle-focused research and detailed benchmark quality experiments for CFD code validation.
The tunnel can provide continuous operation at 10 discrete airspeeds from Mach 1.3 to 6.0 by using an appropriate fixed-area contoured nozzle block upstream of the test section.
A number of specialized support systems are available to meet the research customer’s needs such as auxiliary bleed, model hydraulics, and probe actuation systems. Machine shop equipment is also available to accommodate model build-up and changes. The 1×1 uses several different types of experimental research tools that are invaluable to fundamental studies.
The facility has qualitative and quantitative flow visualization capabilities such as Schlieren imaging system, particle image velocimetry (PIV), a sheet-laser system, blue Zyglo (Magnaflux) and black lights, two-component laser Doppler velocimetry (LDV), and trace gas detection.
The equipment in the 1×1 is complemented by staff experienced in supersonic test hardware and experimentation. With its capabilities, expert staff, and efficiency, the 1×1 offers the supersonic research community an excellent low-cost tool for fundamental small-scale research.
