Instability behaviors of a cylinder array under both increasing and decreasing flow velocities
This study aimed to investigate the effects of increasing and decreasing crossflow velocities on the fluid-elastic instability behaviors of cylinder arrays. The responses of an elastically mounted cylinder in a rigid normal square cylinder array in a water tunnel subjected to crossflow were tested....
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2017-03-01
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doaj-38feb8f6f76e41ff9a637808d816d52c2020-11-24T21:59:01ZengJVE InternationalJournal of Vibroengineering1392-87162538-84602017-03-011921393140810.21595/jve.2016.1720017200Instability behaviors of a cylinder array under both increasing and decreasing flow velocitiesXu Zhang0Bin Jiang1Xiaoming Xiao2School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People’s Republic of ChinaSchool of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People’s Republic of ChinaSchool of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People’s Republic of ChinaThis study aimed to investigate the effects of increasing and decreasing crossflow velocities on the fluid-elastic instability behaviors of cylinder arrays. The responses of an elastically mounted cylinder in a rigid normal square cylinder array in a water tunnel subjected to crossflow were tested. The responses were simultaneously obtained from both in-line and transverse vibrations. Results show that the responses under increasing freestream velocity differ from those under decreasing freestream velocity. Under decreasing freestream velocity, fluid-elastic instability was accompanied by nonlinear hysteresis, and the cylinder exhibiting this instability can remain in this state for a certain range of flow velocities. Added mass coefficients were also obtained. Two criteria for fluid-elastic instability were applied.https://www.jvejournals.com/article/17200crossflow-induced vibrationfluid-elastic instabilitycylinder arrayincreasing and decreasing flow velocities |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Xu Zhang Bin Jiang Xiaoming Xiao |
spellingShingle |
Xu Zhang Bin Jiang Xiaoming Xiao Instability behaviors of a cylinder array under both increasing and decreasing flow velocities Journal of Vibroengineering crossflow-induced vibration fluid-elastic instability cylinder array increasing and decreasing flow velocities |
author_facet |
Xu Zhang Bin Jiang Xiaoming Xiao |
author_sort |
Xu Zhang |
title |
Instability behaviors of a cylinder array under both increasing and decreasing flow velocities |
title_short |
Instability behaviors of a cylinder array under both increasing and decreasing flow velocities |
title_full |
Instability behaviors of a cylinder array under both increasing and decreasing flow velocities |
title_fullStr |
Instability behaviors of a cylinder array under both increasing and decreasing flow velocities |
title_full_unstemmed |
Instability behaviors of a cylinder array under both increasing and decreasing flow velocities |
title_sort |
instability behaviors of a cylinder array under both increasing and decreasing flow velocities |
publisher |
JVE International |
series |
Journal of Vibroengineering |
issn |
1392-8716 2538-8460 |
publishDate |
2017-03-01 |
description |
This study aimed to investigate the effects of increasing and decreasing crossflow velocities on the fluid-elastic instability behaviors of cylinder arrays. The responses of an elastically mounted cylinder in a rigid normal square cylinder array in a water tunnel subjected to crossflow were tested. The responses were simultaneously obtained from both in-line and transverse vibrations. Results show that the responses under increasing freestream velocity differ from those under decreasing freestream velocity. Under decreasing freestream velocity, fluid-elastic instability was accompanied by nonlinear hysteresis, and the cylinder exhibiting this instability can remain in this state for a certain range of flow velocities. Added mass coefficients were also obtained. Two criteria for fluid-elastic instability were applied. |
topic |
crossflow-induced vibration fluid-elastic instability cylinder array increasing and decreasing flow velocities |
url |
https://www.jvejournals.com/article/17200 |
work_keys_str_mv |
AT xuzhang instabilitybehaviorsofacylinderarrayunderbothincreasinganddecreasingflowvelocities AT binjiang instabilitybehaviorsofacylinderarrayunderbothincreasinganddecreasingflowvelocities AT xiaomingxiao instabilitybehaviorsofacylinderarrayunderbothincreasinganddecreasingflowvelocities |
_version_ |
1725849663259541504 |