2024-03-28T11:40:29Z
https://u-ryukyu.repo.nii.ac.jp/oai
oai:u-ryukyu.repo.nii.ac.jp:02003797
2022-10-31T01:44:15Z
1642837622505:1642837855274:1642837872220
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多孔スロートが遷音速ディフューザに及ぼす影響
Effects of Porous Throat on Transonic Diffuser
屋我, 実
永井, 實
富田, 教夫
芳賀, 剛
宮良, 透
Yaga, Minoru
Nagai, Minoru
Tomita, Norio
Haga, Tsuyoshi
Miyara, Tooru
Compressible flow
Shock wave
Boundary layer
Porous throat
Pressure fluctuation
The effects of the porous throat on a transonic diffuser were investigated experimentally by wall static pressure measurements and by schlieren optical observations. The porous throat consists of a wall with 126 holes and a cavity underneath it so that the flow around the shock wave can circulate through the porous wall. The results show that no shock wave was observed at 80% of the porous region from the throat and that the pressure fluctuations in the transonic diffuser were greatly reduced by the porous throat. According to the frequency analysis, the frequency range attenuated by the porous region is between about 700 Hz and 1kHz and the frequencies lower than 700 Hz have still remained.
紀要論文
http://purl.org/coar/resource_type/c_6501
琉球大学工学部
1995-09
VoR
http://hdl.handle.net/20.500.12000/5456
0389-102X
AN0025048X
琉球大学工学部紀要
50
25
17
jpn
open access