Revisiting screech tones: Effects of temperature

Anjaneyulu Krothapalli, Paul J. Strykowski

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

The role of stagnation temperature on the determination of the screech frequency of an underexpanded jet is examined using experimental data and the theoretical analysis of Tarn. It is shown that the prediction formula developed by Tarn for the screech frequency agrees well with the experimental data at different nozzle pressure ratios and temperature ratios. The directivity of the screech tone at high temperatures reveals that the screech amplitude is most significant only in the forward arc. An inviscid stability analysis is carried out to identify the role of the temperature on the growth of two and three- dimensional disturbances in shear layers that are representative of screeching jets.

Original languageEnglish (US)
Title of host publication34th Aerospace Sciences Meeting and Exhibit
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
StatePublished - Jan 1 1996
Event34th Aerospace Sciences Meeting and Exhibit, 1996 - Reno, United States
Duration: Jan 15 1996Jan 18 1996

Other

Other34th Aerospace Sciences Meeting and Exhibit, 1996
CountryUnited States
CityReno
Period1/15/961/18/96

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