Disturbance and phase speed measurements for shock tubes and hypersonic boundary-layer instability

J. S. Jewell, N. J. Parziale, K. Y. Lam, B. J. Hagen, R. L. Kimmel

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

36 Scopus citations

Abstract

Measurements and calculations of the phase speed of disturbances observed in a small shock tube are made, via cross-correlation of successive frames from focusing schlieren videography and double focused laser differential interferometry. The efficacy of the latter technique for measuring slender-body hypersonic boundary-layer instability wave-packets is also demonstrated. Shock tube experiments are performed to provide a known velocity input to both sensors for comparison, and measurements of phase velocity are made behind the reflected shock. Power spectral density curves from the FLDI and focusing schlieren from shock tube experiments at similar conditions are compared with each other and with pitot tube results, and reasonable agreement is found to the frequency limits of the sensors.

Original languageEnglish
Title of host publication32nd AIAA Aerodynamic Measurement Technology and Ground Testing Conference
Pages1-9
Number of pages9
DOIs
StatePublished - 2016
Event32nd AIAA Aerodynamic Measurement Technology and Ground Testing Conference, 2016 - Washington, United States
Duration: 13 Jun 201617 Jun 2016

Publication series

Name32nd AIAA Aerodynamic Measurement Technology and Ground Testing Conference

Conference

Conference32nd AIAA Aerodynamic Measurement Technology and Ground Testing Conference, 2016
Country/TerritoryUnited States
CityWashington
Period13/06/1617/06/16

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