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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

Power spectrum of high Schmidt number scalar in a turbulent jet at a moderate Reynolds number

http://hdl.handle.net/2237/0002002266
http://hdl.handle.net/2237/0002002266
dc7eb77a-cd51-40d1-8be2-cba494e11025
名前 / ファイル ライセンス アクション
final_2104213.pdf final_2104213.pdf (466 KB)
Item type itemtype_ver1(1)
公開日 2022-03-24
タイトル
タイトル Power spectrum of high Schmidt number scalar in a turbulent jet at a moderate Reynolds number
言語 en
著者 Iwano, Koji

× Iwano, Koji

en Iwano, Koji

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Hosoi, Jumpei

× Hosoi, Jumpei

en Hosoi, Jumpei

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Sakai, Yasuhiko

× Sakai, Yasuhiko

en Sakai, Yasuhiko

Search repository
Ito, Yasumasa

× Ito, Yasumasa

en Ito, Yasumasa

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 This version of the article has been accepted for publication, after peer review (when applicable) and is subject to Springer Nature’s AM terms of use, but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at: http://dx.doi.org/10.1007/s00348-021-03216-5
内容記述
内容記述 The power spectrum of concentration fluctuation of high Schmidt number dye (Sc≃2.9×10^3) was measured in a liquid-phase axisymmetric turbulent jet at the jet Reynolds number of 2.0×10^4. We used the optical fiber LIF probe which has a spatial resolution of 2.8 μm and a working distance of 140 μm. It is confirmed that the probe can achieve high signal-to-noise ratio by using high concentration dye, which enabled us to examine the spectral shape almost up to the Batchelor scale for the present experimental condition. The measured power spectrum captures the transition from the inertial–convective range to the viscous–convective range at around kηK=0.03 (ηK: Kolmogorov scale). The k^−1 scaling law for the power spectrum almost holds in the viscous–convective range. However, the spectrum does not perfectly follow the k^−1 scaling but has a small bump in the range. It is also shown that the small-scale concentration fluctuation largely contributes to the r.m.s value of concentration fluctuation.
言語 en
内容記述タイプ Abstract
出版者
言語 en
出版者 Springer
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/10.1007/s00348-021-03216-5
収録物識別子
収録物識別子タイプ PISSN
収録物識別子 0723-4864
書誌情報 en : Experiments in Fluids

巻 62, p. 129, 発行日 2021-05-25
ファイル公開日
日付 2022-05-25
日付タイプ Available
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