| アイテムタイプ |
itemtype_ver1(1) |
| 公開日 |
2025-12-23 |
| タイトル |
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タイトル |
Attenuation of Weak Spherical Shock Waves in an Accelerating Flow |
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言語 |
en |
| 著者 |
Watanabe, Tomoaki
Haneda, Moeki
Sugino, Yuki
Nagata, Koji
Inokuma, Kento
Sasoh, Akihiro
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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 |
Copyright 2025 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.The following article appeared in (Physics of Fluids 37, 086180 (2025)) and may be found at (https://doi.org/10.1063/5.0279418). |
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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 |
This study reports experimental investigations of a weak spherical shock wave propagating into an accelerating flow induced by a fan. Pressure measurements are conducted for shock waves propagating in both a static fluid and an accelerating flow, and comparisons reveal the influence of the accelerating flow on shock wave properties. The pressure jump of the shock wave is reduced after propagation in the accelerating flow, indicating attenuation of the shock wave. Greater attenuation is observed with increasing longitudinal velocity gradient in the shock propagation direction, corresponding to higher acceleration. When the velocity gradient becomes sufficiently large, the pressure jump is no longer identifiable, implying the disappearance of the shock wave. This attenuation is consistent with the one-dimensional model of a shock wave crossing a surface with an infinitely large velocity gradient, as the experimental conditions approach those of the model with increasing gradient. The attenuation does not affect the fluctuating behavior of the pressure jump. Additionally, the histogram of pressure jumps suggests that attenuation occurs for all shock waves propagating in the accelerating flow. The present experimental results support the shock wave attenuation predicted by the one-dimensional model, offering new insights into shock wave propagation in non-uniform flows. |
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言語 |
en |
| 出版者 |
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出版者 |
AIP 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/10.1063/5.0279418 |
| 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 |
1070-6631 |
| 書誌情報 |
en : Physics of Fluids
巻 37,
号 8,
p. 086180,
発行日 2025-08
|
2025AM_Attenuation_of_weak_spherical_shock_waves.pdf (799 KB)
