Calibration and performance characterization of a Mach 5 Ludwieg tube
Affiliation
Department of Aerospace and Mechanical Engineering, University of ArizonaIssue Date
2022
Metadata
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American Institute of Physics (AIP)Citation
Bearden, K. P., Padilla, V. E., Taubert, L., & Craig, S. A. (2022). Calibration and performance characterization of a Mach 5 Ludwieg tube. Review of Scientific Instruments, 93(8), 085104.Journal
Review of Scientific InstrumentsRights
© 2022 Author(s). Published under an exclusive license by AIP Publishing.Collection Information
This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.Abstract
Calibration, commissioning, and design features of a new Mach 5 Ludwieg Tube wind tunnel at the University of Arizona are discussed. Mach number uniformity and free-stream noise levels are measured using a Pitot rake at a range of unit Reynolds numbers and at multiple spanwise and streamwise positions. The wind tunnel is shown to have a free-stream Mach number of 4.82 with maximum variance less than 0.8% (and less than 0.5% at most streamwise positions). The average free-stream acoustic noise level in the core (based on Pitot pressure) is shown to be less than 1.2% at an intermediate Reynolds number with some regions dropping locally below 1.0%. The core flow region is measured to be 282.4 mm (11.1 in.) in diameter at the nozzle exit.Note
12 month embargo; published online: 10 August 2022ISSN
0034-6748Version
Final published versionSponsors
Office of Naval ResearchAdditional Links
https://aip.scitation.org/doi/full/10.1063/5.0093052ae974a485f413a2113503eed53cd6c53
10.1063/5.0093052