| アイテムタイプ |
itemtype_ver1(1) |
| 公開日 |
2024-10-16 |
| タイトル |
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|
タイトル |
Characterization of heated volume generation by nanosecond pulsed plasma actuator with various pressure environments |
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言語 |
en |
| 著者 |
Matsunaga, Tomohiro
Iwamoto, Masaaki
Miki, Yuma
Kinefuchi, Kiyoshi
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| アクセス権 |
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アクセス権 |
open access |
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アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 権利 |
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|
権利情報 |
This is the Accepted Manuscript version of an article accepted for publication in [Journal of Physics D: Applied Physics]. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at [https://doi.org/10.1088/1361-6463/ad5699] |
|
言語 |
en |
| 権利 |
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|
権利情報 |
“This Accepted Manuscript is available for reuse under a CC BY-NC-ND licence after the 12 month embargo period provided that all the terms of the licence are adhered to” |
|
言語 |
en |
| 内容記述 |
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|
内容記述タイプ |
Abstract |
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内容記述 |
Nanosecond dielectric barrier discharge (NS-DBD) has emerged as a promising technique for controlling high-speed flows, generating a heated volume that generates strong density and viscosity gradients, thereby perturbing flow dynamics. Since its potential application in low-pressure, high-speed flows, understanding how the size and growth of the heated volume correlate with surrounding pressure is crucial. In this study, we employed typical schlieren and background-oriented schlieren (BOS) techniques to investigate the heated volume's sensitivity to surrounding pressure in quiescent air. The observed heated volume's size variations with surrounding pressure likely stemmed from the increase in thermal diffusivity at lower pressures. BOS findings unveiled a nearly linear decrease in heated volume's core density with energy input. Meanwhile, the heated volume's size augmented with energy input but exhibited gradual saturation, attributable possibly to shear stresses impeding volume expansion as temperature and viscosity rose, or to consumption of energy in vibration excitation and other reactions. In the cases of 100 and 50 kPa, the sensitivity of the heated volume's size to the reduced electric field appeared to be similar. However, at 10 kPa, where the reduced electric field is higher compared to that of the 100 and 50 kPa cases due to the lower air density, the size sensitivity drastically decreased. This suggested a transition in discharge mode from filamentary to diffusive behavior at lower pressures. |
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言語 |
en |
| 出版者 |
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出版者 |
IOP publishing |
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言語 |
en |
| 言語 |
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|
言語 |
eng |
| 資源タイプ |
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資源タイプresource |
http://purl.org/coar/resource_type/c_6501 |
|
タイプ |
journal article |
| 出版タイプ |
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出版タイプ |
AM |
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出版タイプResource |
http://purl.org/coar/version/c_ab4af688f83e57aa |
| 関連情報 |
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|
関連タイプ |
isVersionOf |
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|
識別子タイプ |
DOI |
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関連識別子 |
https://doi.org/10.1088/1361-6463/ad5699 |
| 収録物識別子 |
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収録物識別子タイプ |
PISSN |
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収録物識別子 |
0022-3727 |
| 書誌情報 |
en : Journal of Physics D: Applied Physics
巻 57,
号 37,
p. 375203,
発行日 2024-09-20
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| ファイル公開日 |
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|
日付 |
2025-09-20 |
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日付タイプ |
Available |
paper_J_Phys_D_Appl_Phys_Rev2-2zZ_clean.pdf (12.8 MB)
