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

Monitoring integral functions on section planes

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   March 4, 2007, 00:52
Default Monitoring integral functions on section planes
  #1
prabhu
Guest
 
Posts: n/a
hi, I have to simulate pulsating flow through a pipe. I want to monitor with time the momentum flux at different section planes. I tried to create surfaces in ICEMCFD and created parts out of them but they are not appearing in CFX-pre.

Thank you
  Reply With Quote

Old   March 4, 2007, 05:21
Default Re: Monitoring integral functions on section plane
  #2
Glenn Horrocks
Guest
 
Posts: n/a
Hi,

CFX11 has some new functionality where you can define arbitrary sections and perform CEL functions on it. I have not used it (yet) so am not familiar with how it works but have a read of the documentation and it should describe it.

Glenn Horrocks
  Reply With Quote

Old   March 4, 2007, 08:44
Default Re: Monitoring integral functions on section plane
  #3
prabhu
Guest
 
Posts: n/a
Thank you very much Mr.Glenn Horrocks. Your suggestion for my previous mail was useful and i was hoping for a reply from you only. I am using CFX 10.0.
  Reply With Quote

Old   March 4, 2007, 17:14
Default Re: Monitoring integral functions on section plane
  #4
Glenn Horrocks
Guest
 
Posts: n/a
Hi Prabhu,

The new CEL functionality is only in CFX11. In CFX10 the only way to do CEL expressions on arbitrary planes was to create an interface or similar at that location.

I has been released a week or so back so if you have current maintenance you are entitled to it. You can download it from the ANSYS customer website.

Glenn Horrocks
  Reply With Quote

Old   March 4, 2007, 18:32
Default Re: Monitoring integral functions on section plane
  #5
Astrid
Guest
 
Posts: n/a
In ICEM you already have split your volume into separate parts using surfaces. Good. Now, do the following steps:

1) you have to define bodies (material points) for each separate volume; 2) create the mesh; 3) Read it in in Pre. You will find all the different bodies. Now you can create a domain for each volume and connect them using GGI's (1-1 connection); 4) In the expressions section you have to define area integral variables like: aIVar=areaInt(variable)@GGI; 5) In the OUTPUT CONTROL section you have to select that you want to monitor this espression.

Perhaps it is not necessary to create several domains. It might also be possible to create just one domain and subdomains for each subvolume. Then you can select the sufaces of the subdomains to create the areaIntegral expressions.

Perhaps it is necessary to introduce an extra step between 4 and 5. If it not possible to monitor an expression, you might have to create an unspecific additional variable, equal to the expression. Then monitor this additional variable.

Hope this helps....good luck....

Astrid

  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
dsmcInitialise - dsmcFoam archymedes OpenFOAM Pre-Processing 94 July 15, 2016 17:14
Monitoring points or planes in transient CFX simulations jwillie2000 CFX 6 May 20, 2011 17:20
LiftDrag utility from v12 to v141 cfdphil OpenFOAM Running, Solving & CFD 2 December 5, 2007 06:49
monitor surface integral & report surface integral Ning FLUENT 0 March 18, 2007 13:51
New section and new gateways Ynot CFD-Wiki 7 December 17, 2005 14:21


All times are GMT -4. The time now is 09:55.