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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

Mixing of a two-layer density-stratified fluid by two vortex rings successively launched toward the density interface

http://hdl.handle.net/2237/0002001548
http://hdl.handle.net/2237/0002001548
abeb765b-e5e3-4d44-9338-1cdc2ab7da22
名前 / ファイル ライセンス アクション
jov.pdf jov.pdf (958 KB)
Item type itemtype_ver1(1)
公開日 2021-10-20
タイトル
タイトル Mixing of a two-layer density-stratified fluid by two vortex rings successively launched toward the density interface
言語 en
著者 Cao, Lile

× Cao, Lile

en Cao, Lile

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Takamure, Kotaro

× Takamure, Kotaro

en Takamure, Kotaro

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Degawa, Tomohiro

× Degawa, Tomohiro

en Degawa, Tomohiro

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Uchiyama, Tomomi

× Uchiyama, Tomomi

en Uchiyama, Tomomi

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
キーワード
主題Scheme Other
主題 Density-stratified fluid
キーワード
主題Scheme Other
主題 Mixing
キーワード
主題Scheme Other
主題 Vortex ring
キーワード
主題Scheme Other
主題 Density interface
キーワード
主題Scheme Other
主題 PLIF
内容記述
内容記述 In this study, two vortex rings composed of upper fluid were continuously ejected vertically downward toward the interface of the two-layer density-stratified fluid. The motion of the vortex rings and behavior of the lower layer fluid were investigated via visualization experiment, and the effect of time interval between the injections of the two vortex rings on the mixing of the density-stratified fluid was investigated. The first emitted vortex ring (VRA) advected vertically downward in the upper layer, passed through the density interface, and then advected in the lower layer. After VRA reached the maximum depth in the lower layer, the upper part of the fluid mass ejected into the upper layer due to buoyancy. The lower fluid was entrained in the upper layer. Subsequently, a new vortex ring (VRC) was generated by the fluid mass ejected in the upper layer and advected vertically upward in the upper layer. The second vortex ring emitted (VRB) collided with the tip of the fluid mass of the VRA ejected from the lower layer. Subsequently, it slightly penetrated the lower layer, rolled up the lower layer fluid into the upper layer, and coalesced with VRC to collapse. In the process of vortex merging, the mixing of the upper and lower layers reached a maximum when the VRA reached the maximum depth. Furthermore, it was clarified that the mixing ability of the upper and lower layers depends on the ejection time interval of the two vortex rings.
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/s12650-020-00738-8
収録物識別子
収録物識別子タイプ PISSN
収録物識別子 1343-8875
書誌情報 en : Journal of Visualization

巻 24, 号 4, p. 683-697, 発行日 2021-08
ファイル公開日
日付 2022-08-01
日付タイプ Available
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