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

rotation in Fluent

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

Reply
 
LinkBack Thread Tools Display Modes
Old   March 8, 2013, 12:59
Default rotation in Fluent
  #1
New Member
 
Join Date: Mar 2013
Posts: 5
Rep Power: 4
Arty is on a distinguished road
Hi, guys. Here is the question:
I'm making a 2way FSI analysis considering a gas compressor blade. So, I have a mesh for the blade used in Transient Structural and another mesh for the blade domain used in FLUENT.
I inserted rotational velocity for the blade in the transient analysis and not sure, must I input this value of velocity for the mesh in FLUENT or rotation is not essential for Fluent.
Arty is offline   Reply With Quote

Old   March 11, 2013, 17:14
Default
  #2
Senior Member
 
Join Date: Apr 2009
Posts: 516
Rep Power: 12
stumpy is on a distinguished road
A rotational velocity in Transient Structural applies the forces due to rotational motion, but it does not actually rotate the mesh. So the displacements passed to Fluent are just the relative deformations due to rotational forces (and fluid forces I assume). The mesh in Fluent should not rotate either so that it remains aligned with the structural side (i.e. do not use a sliding mesh approach in Fluent).
In the transient structural case are you ramping up the rotational velocity? If not, then that means the rotational forces are applied instantaneously at the start of the transient. How will the structure respond to this?
stumpy is offline   Reply With Quote

Reply

Tags
fluent, fsi, rotational velocity

Thread Tools
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 On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Mesh motion with Translation & Rotation Doginal CFX 2 January 12, 2014 07:21
heat transfer with RANS wall function, over a flat plate (validation with fluent) bruce OpenFOAM Running, Solving & CFD 5 September 25, 2013 04:40
Two questions on Fluent UDF Steven Fluent UDF and Scheme Programming 4 September 20, 2013 16:30
Alias problem when starting FLUENT from command line batch_error FLUENT 0 May 24, 2012 08:20
Fluent 12.0 is worst then Fluent 6.2 herntan FLUENT 5 December 14, 2009 03:57


All times are GMT -4. The time now is 06:54.