Hostname: page-component-7b7567c8c-jswmv Total loading time: 0 Render date: 2026-11-15T10:34:16.753Z Has data issue: false hasContentIssue false

Self-Similar Analysis on Vortex Shedding Process

Published online by Cambridge University Press:  05 May 2011

C.-T. Wang*
Affiliation:
Dept. of Mechanical and Electro-Mechanical Engineering, National I Lan University, I Lan, Taiwan 26047, R.O.C.
C.-T. Chen*
Affiliation:
Dept. of Applied Mathematics, National University of Kaohsiung, Kaohsiung, Taiwan 81148, R.O.C.
*
*Assistant Professor
*Assistant Professor
Get access

Abstract

Chaos theory has been seen as an efficient tool for studying the turbulent flow, the findings of attractor were also important and made in the study to investigate the wake flow behind the bluff body. Here, the fractal dimension value would then be found by Hurst analysis. According to the results found, the Hurst empirical formula derived by the self-similar laceration of vortex plane would be applied by self-similar property to decide the band of the frequency variations in the vortex shedding process. The three kinds of flow mode with their individual attractors and characteristics could be decomposed and shown as following: self-similar laceration, energy input and white noise band. Finally, the energy ratio for the three kinds of flow mode had been confirmed. Hence, these findings would be helpful to further study the wake flow in the vortex shedding process.

Information

Type
Articles
Copyright
Copyright © The Society of Theoretical and Applied Mechanics, R.O.C. 2006

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Article purchase

Temporarily unavailable