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  1. F200 未来材料・システム研究所
  2. F200a 雑誌掲載論文
  3. 学術雑誌

A novel characteristic length of detonation relevant to supercritical diffraction

http://hdl.handle.net/2237/00032259
http://hdl.handle.net/2237/00032259
819aa65e-5e0d-4618-8a27-d7918086328c
名前 / ファイル ライセンス アクション
manuscript_rev2_01.pdf manuscript_rev2_01 (2.9 MB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2020-05-27
タイトル
タイトル A novel characteristic length of detonation relevant to supercritical diffraction
言語 en
著者 Kawasaki, A.

× Kawasaki, A.

WEKO 99193

en Kawasaki, A.

Search repository
Kasahara, J.

× Kasahara, J.

WEKO 99194

en Kasahara, J.

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 is a post-peer-review, pre-copyedit version of an article published in [Shock Waves]. The final authenticated version is available online at: http://dx.doi.org/10.1007/s00193-019-00890-7”.
キーワード
主題Scheme Other
主題 Reflection point distance
キーワード
主題Scheme Other
主題 Detonation dynamic parameters
キーワード
主題Scheme Other
主題 Detonation diffraction
キーワード
主題Scheme Other
主題 Critical tube diameter
キーワード
主題Scheme Other
主題 Detonation stability
キーワード
主題Scheme Other
主題 Schlieren imaging
抄録
内容記述 For stoichiometric C2H4–O2 and C2H2–O2 mixtures with or without argon dilution, the processes of detonation diffraction have been investigated in a two-dimensional setup through high-speed schlieren imaging, with the characteristic length and the stability of detonation varied by regulating the initial pressure and argon mole fraction of the mixture. In particular, a length relevant to the process of supercritical diffraction (i.e., distance from the channel end corner to reflection point of the transverse detonation on the channel end face, reflection point distance in short) was deduced from obtained sequential schlieren images and analyzed. The reflection point distance can be idealized for the infinitely wide donor channel, and thus, it can be a parameter in which properties intrinsic to each detonable mixture are manifested. Experimental results showed that the reflection point distance was roughly inversely proportional to the initial pressure for identical mixtures and independent of the width of the donor channel at high initial pressures. For a certain combination of the fuel and oxidizer, correlations between the reflection point distance and the initial partial pressure of fuel were very similar regardless of the argon mole fraction. Critical conditions of the diffraction problem could be given for the ratio of the reflection point distance to the channel width, and it was suggested that the critical value lies in a range of 3–5 and does not significantly depend on the stability of the mixture.
言語 en
内容記述タイプ Abstract
内容記述
内容記述 ファイル公開:2021/01/01
言語 ja
内容記述タイプ Other
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
DOI
関連タイプ isVersionOf
識別子タイプ DOI
関連識別子 https://doi.org/10.1007/s00193-019-00890-7
ISSN(print)
収録物識別子タイプ PISSN
収録物識別子 0938-1287
書誌情報 en : Shock Waves

巻 30, 号 1, p. 1-12, 発行日 2020-01
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