An experimental study of the nozzle lip thickness effect on supersonic jet screech tones

2006 ◽  
Vol 20 (4) ◽  
pp. 522-532 ◽  
Author(s):  
Toshiyuki Aoki ◽  
Yong-Hun Kweon ◽  
Yoshiaki Miyazato ◽  
Heuy-Dong Kim ◽  
Toshiaki Setoguchi
Keyword(s):  
Experimental Study ◽  
Supersonic Jet ◽  
Thickness Effect ◽  
Screech Tones

Thickness effect on spring-in of prepreg composite L-profiles – An experimental study

2019 ◽  
Vol 209 ◽  
pp. 499-507 ◽  
Author(s):  
Erik Hörberg ◽  
Tonny Nyman ◽  
Malin Åkermo ◽  
Stefan Hallström
Keyword(s):  
Experimental Study ◽  
Thickness Effect

Experimental Investigation on Supersonic Jet Screech Tones

2012 ◽  
Vol 232 ◽  
pp. 213-217
Author(s):  
Jia Ming Li ◽  
Chun Bo Hu ◽  
Jun Hua Bai
Keyword(s):  
Mach Number ◽  
Field Distribution ◽  
Experimental Measurement ◽  
Supersonic Jet ◽  
Jet Noise ◽  
Occurrence Frequency ◽  
Supersonic Jet Noise ◽  
Nozzle Size ◽  
Screech Tones ◽  
Peak Value

In order to investigate the characteristic of the supersonic jet screech tones, an experimental bench of the supersonic jet was designed and a free field noise signal acquisition system was established. Effects of the nozzle size and jet Mach number on jet noise sound field distribution was analyzed, through the result comparison of supersonic jet noise experimental measurement. Results indicate that the field distribution of supersonic jet screech tones is characterized with very strong directivity. Peak value of the screech tones decrease and occurrence frequency of the screech tones increase with the decreasing jet exit Mach number; occurrence frequency of the screech tones decrease with the increasing nozzle size, but the peak value change very less. The experimental measurement of supersonic jet noise provides mechanism research of sound production with data supports and references; and also provides the numerical modeling of supersonic jet noise with validation criteria.

0801 Experimental Study on the Velocity Distribution in the Supersonic Jet Shear Layer and the Acoustic Waves

2015 ◽  
Vol 2015 (0) ◽  
pp. _0801-1_-_0801-3_ ◽  
Author(s):  
Yuta Ozawa ◽  
Taku Nonomura ◽  
Kozo Fujii ◽  
Makoto Yamamoto ◽  
Yuya Mamori
Keyword(s):  
Experimental Study ◽  
Velocity Distribution ◽  
Shear Layer ◽  
Acoustic Waves ◽  
Supersonic Jet
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