| Item type |
紀要論文 / Departmental Bulletin Paper(1) |
| 公開日 |
2023-03-30 |
| タイトル |
|
|
タイトル |
周期的に配列されたバッフルをもつ2次元流路内流れのカオス現象 |
| タイトル |
|
|
タイトル |
Chaotic phenomena of flow in two-dimensional channel with periodically baffled elements |
|
言語 |
en |
| 言語 |
|
|
言語 |
jpn |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Pulsatile flow |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Autonomous oscilating flow |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Chaotic phenomena |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Chaotic mixing |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Dynamical system |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Hamiltonian system |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Poincare map |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Liapunov exponents |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Eulerian representation |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Lagrangian representation |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
departmental bulletin paper |
| 著者 |
中西, 助次
品川, 至英
奥本, 浩
Nakanishi, Suketsugu
Shinagawa, Yoshihide
Okumoto, Hiroshi
|
| 抄録 |
|
|
内容記述タイプ |
Abstract |
|
内容記述 |
The objective of this work is a numerical analysis of chaotic mixing in the two-dimensional channel flows. For the analytical flow models, the pulsatile flow through a rough-wall channel and the autonomous oscilating flow through a buffled channel were considered. As the considered flow models are two-deimensional, we have a stream function ψ(x,y,t), and the equations of motion of an advected particle are simply x=аψ/ay, y=-aψ/ax. These equations have the form of Hamilton's canomical equations for a dynamical system with one or two degree of freedom. Chaotic phenomena for the flow models were investigated by using Poincare map and Liapunov exponents which are typical method for analysing dynamical systems. In addition, the relation of flows between the Eulerian and the Lagrangian representations was discussed. The obtained results showed that the chaotic motion of an advected particle was demonstrated even when simply flow structure of a time-periodically fluctuated flow, from view of Eulerian representation, then chaotic mixing (stretching and folding of fluid element) can be produced consequently. |
| 書誌情報 |
広島工業大学研究紀要
巻 32,
p. 33-43,
発行日 1998
|
| 出版者 |
|
|
出版者 |
広島工業大学 |
| ISSN |
|
|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
03851672 |
| 書誌レコードID |
|
|
収録物識別子タイプ |
NCID |
|
収録物識別子 |
AN0021271X |
| フォーマット |
|
|
内容記述タイプ |
Other |
|
内容記述 |
application/pdf |
| 著者版フラグ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
kenkyukiyo32033.pdf (586.8 kB)
