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

Sliding Mesh - moving body

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   June 18, 2011, 16:37
Default Sliding Mesh - moving body
  #1
New Member
 
Richard
Join Date: May 2011
Posts: 10
Rep Power: 14
rw511 is on a distinguished road
Hello all, I wonder if anyone can help.

I'm starting out on a project looking at transient particle flows in a room, subject to a moving body. I have reasonable experience with FLUENT but have not touched upon sliding meshes.

As a very simple scenario I decided to start out with a simple cuboid and another sliding along the bottom of this domain. The bodies are separately meshed in a non-conforming manner. I then defined the underside of both cuboids as interfaces and set the solid (smaller) body velocity components so that it would slide along the bottom.

I ran this test scenario and monitored the mesh by making a solution animation, which confirmed that the mesh moved in the manner I desired. However, when I looked at the pressure contours along the centre-plane of the geometry, it was clear that the moving body had no impact on the flow at all, as if the smaller body were not there.

The corresponding error which shows up is:

Note: zone-surface: cannot create surface from sliding interface zone.
Creating empty surface.

Any suggestions or ideas are welcomed.

Cheers,

Rich.
rw511 is offline   Reply With Quote

Old   October 18, 2012, 11:06
Default
  #2
New Member
 
Jochem Straathof
Join Date: Oct 2012
Posts: 1
Rep Power: 0
JBStraathof is on a distinguished road
Dear Richard,

It is more than a year ago since you posted this problem. However, I assume you still have the data files of the model you were talking about. For my gruduation project I am currently trying the same thing. My end goal is to simulate a moving train passing a passengers platform. Except, I'm not really experienced in Fluent and Gambit. So before I am going to set up a detailed model I want to make a simple model of a moving cube in the open air. Since I have very little experience with both programs I was wondering if you could send me your case and data files and if you also used Gambit, your mesh files? Consequently I can peek at your input values. (my email adress is: jochem_straathof@hotmail.com)

Thanks in advance.
Jochem
JBStraathof is offline   Reply With Quote

Old   October 19, 2012, 06:38
Default
  #3
New Member
 
Richard
Join Date: May 2011
Posts: 10
Rep Power: 14
rw511 is on a distinguished road
Jochem,

I'm afraid I no longer possess any of the files associated with this problem. I actually never solved my problem by having a moving geometry sliding over another. I could only get results when I inserted a few layers of cells between the interface. While I did get this working satisfactorily, as I say, I no longer have any files associated with this work and have not worked in this area for some time. Sorry I cannot be of any further use.

Regards,

Richard.
rw511 is offline   Reply With Quote

Old   May 9, 2013, 03:37
Default
  #4
New Member
 
Join Date: Apr 2013
Posts: 2
Rep Power: 0
pollenhavy is on a distinguished road
Quote:
Originally Posted by rw511 View Post
Jochem,

I'm afraid I no longer possess any of the files associated with this problem. I actually never solved my problem by having a moving geometry sliding over another. I could only get results when I inserted a few layers of cells between the interface. While I did get this working satisfactorily, as I say, I no longer have any files associated with this work and have not worked in this area for some time. Sorry I cannot be of any further use.

Regards,

Richard.
Is that you solve the 'Note: zone-surface: cannot create surface from sliding interface zone.' problem by inserting a few layers of cells built from both sides of the interface??
pollenhavy is offline   Reply With Quote

Reply

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
[snappyHexMesh] SnappyHexMesh for internal Flow vishwa OpenFOAM Meshing & Mesh Conversion 24 June 27, 2016 09:54
Moving Mesh Run problem - Scientific Linux G. SE Siemens 2 May 7, 2008 08:15
fluent add additional zones for the mesh file SSL FLUENT 2 January 26, 2008 12:55
Moving (structured) mesh Jesper CFX 5 February 2, 2007 04:43
Very simple moving mesh Pete FLUENT 4 February 10, 2006 01:12


All times are GMT -4. The time now is 08:52.