CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > ANSYS Meshing & Geometry

Fluid and Structure Interaction

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

Reply
 
LinkBack Thread Tools Display Modes
Old   October 5, 2010, 09:06
Default Fluid and Structure Interaction
  #1
New Member
 
Join Date: Sep 2010
Posts: 11
Rep Power: 5
MrAnderson is on a distinguished road
Dear everybody,

I am currently trying to generate a fluid domain consisting of a beam inside it. The fluid domain shall resemble a water channel and the beam inside is supposed to move later on.

So, my question is the following:
Is it ok if I get yellow curves in my domain at the place where the bottom of the channelwall and the bottom of the beam meets. Since, I want a hole exactly at the place of the bottom of the beam. Could this cause any problem later for my fluid and structure interaction?


Thanks for your help!
MrAnderson is offline   Reply With Quote

Old   October 8, 2010, 16:04
Default Yellow indicator lights...
  #2
Senior Member
 
PSYMN's Avatar
 
Simon Pereira
Join Date: Mar 2009
Location: Ann Arbor, MI
Posts: 2,650
Blog Entries: 1
Rep Power: 33
PSYMN will become famous soon enoughPSYMN will become famous soon enough
This all reminds me of something my high school driving instructor used to say... "What does it mean when you see a flashing indicator light?" Someone in the class would say "they are indicating that they want to turn." The instructor would say "Nope, all it means, for sure, is that their indicator light is working." Don't always assume a more complex meaning to things. Yellow curves don't necessarily mean problems. They just mean you have "single" edges.

Yellow curves mean "no other surface edges within the topo tolerance of this edge". They could be perfectly fine if you expect a gap there (such as when you expect a yellow curve around the perimeter of a baffle.

Even having a yellow curve where two volumes should meet might be OK if the mesh size is large enough to walk over it...

I am not sure I understand your geometry, but are the bottom of the channel wall and bottom of the beam supposed to meet?

I can't say much more without a picture.
PSYMN is offline   Reply With Quote

Reply

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
Fluid Structure Interaction Apollo Main CFD Forum 5 July 4, 2011 16:15
Fluid Structure Interaction with FreeFem ++ Pierre Main CFD Forum 1 November 20, 2008 23:42
fluid structure interaction taru agrawal FLUENT 4 September 10, 2007 03:12
Fluid Structure Interaction in Fluent Florian FLUENT 0 August 28, 2006 20:58
Fluid Structure Interaction Apollo FLUENT 8 July 7, 2004 17:54


All times are GMT -4. The time now is 08:07.