Abstract
Development of a laser Doppler velocimetry (LDV) system was undertaken for supersonic aeroacoustic laboratory measurements. Initial qualification of the system was undertaken by measuring subsonic jet exhaust flows. The mean velocity of the centerline of the jet was measured and compared to previous LDV studies. The axial turbulence intensity was also estimated and compared to previous LDV studies. The LDV system was then tested by measuring a near sonic and supersonic jet exhaust at over-expanded, under-expanded, and fully expanded conditions. The centerline mean jet velocity, axial turbulence intensity, probability density function, histograms, and power spectral density were all analyzed with comparisons made to previous studies. Similar measurements were made on the jet shear layer. The importance of proper seeding of both the core and entrainment flow was highlighted.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
