| Item type |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2014-02-25 |
| タイトル |
|
|
タイトル |
Decay of Vorticity in Separated Shear Layer |
|
言語 |
en |
| 言語 |
|
|
言語 |
eng |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Shear Flow |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Separation |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Viscous Flow |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Flow Measurements |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Flow Visualization |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Vorticity Decay |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Transition |
| 資源タイプ |
|
|
資源 |
http://purl.org/coar/resource_type/c_6501 |
|
タイプ |
journal article |
| 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 |
| 著者 |
MIYAKOSHI, Katsumi
HANIU, Hiroyuki
KIM, Sangil
TAKAI, Kazunori
ISLAM, Mohammad Rofiqul
|
| 抄録 |
|
|
内容記述タイプ |
Abstract |
|
内容記述 |
In this study, process of vorticity decay caused by viscous interaction in a separated shear layer was investigated based on velocity measurements and flow visualization in the immediate vicinity of the separation point of a test body. The experiment was carried out at a fixed Reynolds number of 19,000. The research results innovate the important aspects of clarification on vorticity decay including i) part of the vorticity in the separated shear layer behind a body are caused by viscous interaction associated with transition of velocity distribution from boundary layer like shape to free shear layer like shape in the immediate vicinity of the separation point; ii) Reynolds shear stress associated with turbulent diffusion is not concerned in the vorticity decay process in the immediate vicinity of the separation point; iii) since the Reynolds shear stress around an intermediate size vortex produced by pairing of smaller vortices is considerably large, the flow field becomes turbulent and three dimensional. |
| 書誌情報 |
Journal of Fluid Science and Technology
巻 5,
号 2,
p. 331-339,
発行日 2010-06
|
| 権利 |
|
|
権利情報 |
Copyright c 2010 by The Japan Society of Mechanical Engineers |
| 出版者 |
|
|
出版者 |
The Japan Society of Mechanical Engineers |
|
言語 |
en |
| 著者版フラグ |
|
|
言語 |
en |
|
値 |
publisher |
| 出版タイプ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
No18.pdf (987.5 kB)
