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  1. B200 工学部/工学研究科
  2. B200a 雑誌掲載論文
  3. 学術雑誌

Effect of artificial large-scale structures on bursting phenomenon in turbulent boundary layer

http://hdl.handle.net/2237/0002004291
http://hdl.handle.net/2237/0002004291
558f770a-2192-4958-a85a-1bb8d4d1f03a
名前 / ファイル ライセンス アクション
ArticleFile.pdf ArticleFile.pdf (4.2 MB)
Item type itemtype_ver1(1)
公開日 2023-01-04
タイトル
タイトル Effect of artificial large-scale structures on bursting phenomenon in turbulent boundary layer
言語 en
著者 Chen, Xiaonan

× Chen, Xiaonan

en Chen, Xiaonan

zh-cn 陈晓楠

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岩野, 耕治

× 岩野, 耕治

en Iwano, Koji

ja 岩野, 耕治

Search repository
酒井, 康彦

× 酒井, 康彦

en Sakai, Yasuhiko

ja 酒井, 康彦

Search repository
伊藤, 靖仁

× 伊藤, 靖仁

en Ito, Yasumasa

ja 伊藤, 靖仁

Search repository
アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
権利
言語 en
権利情報 Copyright 2022 Author(s). Published under an exclusive license by AIP Publishing. This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in (Physics of Fluids, 34, 085128 (2022)) and may be found at (https://doi.org/10.1063/5.0102118).
内容記述
内容記述 In this study, the effect of artificial very-large-scale motions (AVLSMs) generated by a dielectric-barrier-discharge plasma actuator (DBD-PA) array on the bursting phenomenon in the near-wall region (𝑦+≤40 in the present study) was experimentally investigated. The DBD-PA array was embedded in the wall where the turbulent boundary layer (TBL) was fully developed. A hot-wire rake consisting of nine I-type probes was used to measure the streamwise fluctuation velocity throughout the TBL at two positions downstream from the DBD-PA array. At both measurement positions in the streamwise direction, it was observed that the negative artificial very-large-scale motions (nAVLSM) flanked on two sides by positive motions (pAVLSM) could extend to above 0.3δ height from the wall. The bursting phenomenon was detected using the variable-interval time-averaging technique. It was observed that the bursting phenomenon in pAVLSM was suppressed, whereas it was enhanced in nAVLSM. Further investigation showed that the bursting frequency normalized by the inner variables in nAVLSMs is the same as that of pAVLSMs only at the secondary measurement position, which is far from the DBD-PA array. These results suggest that the quasi-steady quasi-homogeneous theory only holds when the TBL is sufficiently developed.
言語 en
内容記述タイプ Abstract
出版者
言語 en
出版者 AIP Publishing
言語
言語 eng
資源タイプ
資源タイプresource http://purl.org/coar/resource_type/c_6501
タイプ journal article
出版タイプ
出版タイプ AM
出版タイプResource http://purl.org/coar/version/c_ab4af688f83e57aa
関連情報
関連タイプ isVersionOf
識別子タイプ DOI
関連識別子 https://doi.org/10.1063/5.0102118
収録物識別子
収録物識別子タイプ EISSN
収録物識別子 1089-7666
書誌情報 en : Physics of Fluids

巻 34, 号 8, p. 085128, 発行日 2022-08-17
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