| Item type |
テクニカルレポート / Technical Report(1) |
| 公開日 |
2015-03-26 |
| タイトル |
|
|
タイトル |
ジェット騒音に関係したジェット混合領域における速度および圧力変動の測定 |
| 言語 |
|
|
言語 |
jpn |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_18gh |
|
資源タイプ |
technical report |
| その他のタイトル（英） |
|
|
その他のタイトル |
Measurements of Pressure and Velocity Fluctuations in Jet Mixing Region Related to Jet Noise |
| 著者 |
河野, 長正
菊地, 一雄
細井, 正吾
KAWANO, Nagamasa
KIKUCHI, Kazuo
HOSOI, Shogo
|
| 著者所属 |
|
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航空宇宙技術研究所空気力学第一部 |
| 著者所属 |
|
|
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航空宇宙技術研究所空気力学第一部 |
| 著者所属 |
|
|
|
航空宇宙技術研究所空気力学第一部 |
| 著者所属（英） |
|
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|
en |
|
|
First Aerodynamics Division, National Aerospace Laboratory(NAL) |
| 著者所属（英） |
|
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|
en |
|
|
First Aerodynamics Division, National Aerospace Laboratory(NAL) |
| 著者所属（英） |
|
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|
en |
|
|
First Aerodynamics Division, National Aerospace Laboratory(NAL) |
| 出版者 |
|
|
出版者 |
航空宇宙技術研究所 |
| 出版者（英） |
|
|
出版者 |
National Aerospace Laboratory(NAL) |
| 書誌情報 |
航空宇宙技術研究所報告
en : Technical Report of National Aerospace Laboratory TR-451
巻 451,
p. 23,
発行日 1976-05
|
| 抄録（英） |
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|
内容記述タイプ |
Other |
|
内容記述 |
Pressure and velocity fluctuations in the mixing region of jet flow issuing from a nozzle with a diameter of 30 mm were measured by employing probe tube microphones and hot wire anemometers, and large scale pressure fluctuations in the jet closely related to noise generation were examined. A special calibration test on the error due to the cross flow component of dynamic pressure fluctuations which the pressure probe detected was made in a jet flow generated by an inclined rotating nozzle and the allowable limit of the ratio of static pressure fluctuation to dynamic pressure fluctuation in a turbulent flow for which the probe can be applied was clarified. The measurements were mainly made traversing the flow at two diameters downstream from the nozzle exit at the exit velocity of 20m/sec. Intensity profiles were obtained for pressure and velocity fluctuation, and space-time correlation, power spectra, cross power spectra and coherence at a few selected locations for pressure-pressure, pressure-velocity and velocity-velocity fluctuation. In addition, the same measurements were made on the modified flow by applying wire screens and foil cylinders to the nozzle and the results were compared with those of the pure jet. |
| ISSN |
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|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
0389-4010 |
| 資料番号 |
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|
内容記述タイプ |
Other |
|
内容記述 |
資料番号: NALTR0451000 |
| レポート番号 |
|
|
内容記述タイプ |
Other |
|
内容記述 |
レポート番号: NAL TR-451 |
naltr00451.pdf (1.3 MB)
