CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > ANSYS

Frequencies associated to vortex-induced vibration of a single cylinder

Register Blogs Members List Search Today's Posts Mark Forums Read

Like Tree1Likes
  • 1 Post By matheusroverb

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   April 29, 2019, 10:59
Default Frequencies associated to vortex-induced vibration of a single cylinder
  #1
New Member
 
Join Date: Sep 2018
Posts: 2
Rep Power: 0
matheusroverb is on a distinguished road
Hello everyone!



I am conducting numerical simulations of the flow around an oscillating single cylinder using a moving mesh in ANSYS Fluent 19.0. I found no problems in setting up the simulation. I determine through a UDF the oscillating mass of the system, a natural frequency, and other parameters. The cylinder motion response is in agreement with literature data, however, when I analyze the amplitude data through Fast Fourier Transform, there is only one frequency peak, which corresponds to the Strouhal frequency of vortex shedding. The peak associated with the natural vibration frequency is absent. Does anybody know the reason this is happening and how to overcome it?



Thanks in advance.
Светлана likes this.
matheusroverb is offline   Reply With Quote

Reply

Tags
flow-induced vibration, moving mesh, single cylinder, viv

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
turbulent vortex street behind a cylinder Flashidashi CFX 2 June 14, 2015 08:27
Supercharged Single Cylinder danick1991 ANSYS 6 April 8, 2015 11:35
cylinder vibration saeidhomayounslm Structural Mechanics 0 July 30, 2014 06:09
Vortex induced vibration simulation using pimpleDyMFoam Amit-1911 OpenFOAM Post-Processing 1 April 16, 2014 02:16
benchmark: flow over a circular cylinder goodegg Main CFD Forum 12 January 22, 2013 12:47


All times are GMT -4. The time now is 13:32.