Structural development of the high-speed free jet test facility

Abstract The 2 m×2 m high-speed free jet test facility is a level intermittent blowdown-ejector ground facility, which has the ability of tri-sonic operation. closed section replaced with large chamber. In development process project, main focus uncertainty influences pressure pulsation action on functional realization step change Ma number by adjusting semi-flexible nozzle profile in wide operating range for etc. These difficulties have been solved various ways, such as theoretical analysis and calculation, adoption multidisciplinary optimization techniques, reasonable choice vibration suppression means, accumulation rich experience field wind tunnel design. At present, this built debugged, integrity structure verified.