CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > OpenFOAM Running, Solving & CFD

3D Acoustics with symmetry plane

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

Like Tree1Likes
  • 1 Post By skeptik

Reply
 
LinkBack Thread Tools Display Modes
Old   January 29, 2016, 11:49
Default 3D Acoustics with symmetry plane
  #1
Member
 
Ahmad Habib
Join Date: Nov 2014
Location: Aleppo, Syria
Posts: 31
Rep Power: 3
a_habib is on a distinguished road
Hello Foamers,
I'm planning to use the symmetry plane boundary condition to minimise my domain, let's say it's a 3D domain with a cylinder and the symmetry plane cuts this cylinder in the mid length of its span.
Now in curle setting. do I need to make any special setting?
If I simulated the sound from this half length object, is there any scientific way to take the other half into account, i.e some correction factors.
thanks for your help in advance.
A - Habib
a_habib is offline   Reply With Quote

Old   January 29, 2016, 14:39
Default
  #2
Member
 
Ilya
Join Date: Dec 2011
Location: Russia
Posts: 86
Blog Entries: 40
Rep Power: 6
skeptik is on a distinguished road
If you use libAcoustics Curle, you can set lRef = 0.5, so whole aerodymanic force will be doubled and then p' will be calculated.
a_habib likes this.
__________________
practice makes perfect
skeptik is offline   Reply With Quote

Old   January 29, 2016, 15:21
Default
  #3
Member
 
Ahmad Habib
Join Date: Nov 2014
Location: Aleppo, Syria
Posts: 31
Rep Power: 3
a_habib is on a distinguished road
Thanks Ilya,
Actually this is what came to my mind, but I needed an expert opinion.
a_habib is offline   Reply With Quote

Old   January 30, 2016, 04:29
Default
  #4
Member
 
Ilya
Join Date: Dec 2011
Location: Russia
Posts: 86
Blog Entries: 40
Rep Power: 6
skeptik is on a distinguished road
Quote:
Originally Posted by a_habib View Post
Thanks Ilya,
Actually this is what came to my mind, but I needed an expert opinion.
Look into the Curle.C code
__________________
practice makes perfect
skeptik is offline   Reply With Quote

Old   January 30, 2016, 08:14
Default
  #5
Member
 
Ahmad Habib
Join Date: Nov 2014
Location: Aleppo, Syria
Posts: 31
Rep Power: 3
a_habib is on a distinguished road
I did Ilya, before posting my thread, that's why I said what I said.
a_habib is offline   Reply With Quote

Reply

Tags
3d domain, curle, libacoustics, symmetry bc

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
Possible Bug in pimpleFoam (or createPatch) (or fluent3DMeshToFoam) cfdonline2mohsen OpenFOAM 3 October 21, 2013 09:28
Poor Residuals at Intersection Between Symmetry Plane and Airfoil Leading Edge TWaung CFX 2 February 16, 2010 09:11
Symmetry plane error in solver Santiago Orrego. CFX 6 January 31, 2007 08:09
ICEM and symmetry plane Roland CFX 3 September 13, 2006 08:38
Symmetry plane and force calculation Roland CFX 7 May 31, 2006 13:34


All times are GMT -4. The time now is 07:16.