Abstract
Planar laser-induced fluorescence visualisation is used to investigate nonuniformities in the flow of a hypersonic conical nozzle. Possible causes for the nonuniformity are outlined and investigated, and the problem is shown to be due to a small step at the nozzle throat. Entrainment of cold boundary layer gas is postulated as the cause of the signal nonuniformity.
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Communicated by R. R. Boyce
PACS 47.80.Jk, 47.40.Ki, 47.60.+i
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O’Byrne, S., Danehy, P.M. & Houwing, A.F.P. Investigation of hypersonic nozzle flow uniformity using NO fluorescence. Shock Waves 15, 81–87 (2006). https://doi.org/10.1007/s00193-006-0013-6
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DOI: https://doi.org/10.1007/s00193-006-0013-6