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Saitou Takashi

Affiliate Master Yamaguchi University

Fluid forces acting on a circuler cylinder with single semi-circuler cylindrical tripping wire

Technology reports of the Yamaguchi University Volume 5 Issue 5 Page 313-326
published_at 1996-12
KJ00004351183.pdf
[fulltext] 758 KB
Title
Fluid forces acting on a circuler cylinder with single semi-circuler cylindrical tripping wire
Creators Saitou Takashi
Creators Norikoshi Akira
Creators Tawa Yoshio
Creators Akamatsu Toshiyuki
Source Identifiers
The purpose of this paper is to investigate the effect of a semi-circuler tripping wire on the aerodynamic character of a circuler cylinder as basic research for study on Rain-wind induced vibration. As a results of experimental investigation on the fluid forces acting on a circuler cylinder with a semi-circuler tripping wire, it became evident that there were bi-stable flows in the limiting condition of R_e number and relative height of a trippig wire to diameter of cylinder d/D. In a state of the bi-stable, the mean values of lift forces in short times show rectanguler change intermittently. It is decided the condition convereted into the bi-stable flows by statistic characters of flactuating lift and the change of fluid forces with the switching of two flow patterns by analysis of the measured fluctuation of fluid forces transformed into low frequency fluctuation through the low pass filter with 2 or 3 times period of eddy shedding from a circuler cylinder.
Subjects
工学 ( Other)
Languages eng
Resource Type departmental bulletin paper
Publishers 山口大学工学部
Date Issued 1996-12
File Version Version of Record
Access Rights open access
Relations
[ISSN]0386-3433
[NCID]AA0086073X
Schools 工学部