Experiments on the randomization in a two-dimensional wake

Autor:	Sato, Hiroshi, Saito, Hironosuke, Nakamura, Hiroshi
Jazyk:	japonština
Rok vydání:	2007
Předmět:	音波 velocity fluctuation hot-wire anemometer nonlinear interaction wake sound wave spectrum analysis 非線形干渉 randomization flow measurement 音速 風洞試験 熱船風速計 後流 流れの測定 乱雑化 音響励起 waveform スペクトル解析 acoustic velocity 波形 wind tunnel test 速度変動 acoustic excitation
Zdroj:	宇宙航空研究開発機構特別資料: 境界層遷移の解明と制御研究会講演論文集 第37回・第38回 = JAXA Special Publication: Proceedings of the 37th and 38th JAXA Workshops on Investigation and Control of Boundary-Layer Transition. :15-18
ISSN:	1349-113X
Popis:	A two-dimensional wake was formed behind a fine-mesh screens placed perpendicular to the uniform flow, The transition process in the wake was observed by a hot-wire anemometer. The starting period of the process is the linear growth of small-amplitude velocity fluctuations. The period is followed by the nonlinear interaction between various spectral components. The last and the most important stage is the randomization of periodical fluctuation. The quantitative description of the randomness was tried by the use of amplitude and wave length of randomized velocity fluctuations. 資料番号: AA0063156005 レポート番号: JAXA-SP-06-013
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=jairo_______::1a47512748535519638027540a6f4af3 http://id.nii.ac.jp/1696/00005918/ Zobrazit plný text záznamu