CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > Siemens > STAR-CCM+

velocity profile export from a simulation onto another

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   August 5, 2010, 12:18
Default velocity profile export from a simulation onto another
  #1
New Member
 
sudhirlv
Join Date: Aug 2010
Posts: 1
Rep Power: 0
sudhirlv is on a distinguished road
Hi,

I am a beginner at CFD,im actually trying to set up a simulation on STAR-CCM+ where in i want to create a simple cad model -block ( rectangular duct ).What should be the dimensions of the block ? mainly the entrance length (also the height,length and width of the block ) to get a fully developed condition ?

Later i plan to export the velocity and the other flow parameters from a line probe ( save it in the xyz internal table format )from the first simulation and export it onto another simulation and to get the fully developed flow condition rite at the inlet,so that i could save computation time for the second simulation ...i plan to run a les and also rans turbulence models on the second simulation ??

i hope im clear at defining the problem ...or if anybody has a problem,pls let me know ....this is my first post ....i hope to get some help !

thank you !
sudhirlv is offline   Reply With Quote

Old   September 12, 2010, 19:57
Default
  #2
Senior Member
 
Join Date: Oct 2009
Location: Germany
Posts: 636
Rep Power: 21
abdul099 is on a distinguished road
I guess, i've understood what you are trying to do. But what do you mean with "lenght, height and width of the block to get a fully developed condition"?

The width and the height of the block as well as the shape of a section should be similar to the inlet of the second simulation, otherwise you will get no benefit from the velocity profile.

The easiest way to get a fully developed flow profile will be to apply a "fully developed" interface condition. The flow out of the domain will be the same like the flow inside the domain, so you will get the same flow profile as in an infinite channel, independendly from the lenght of the channel.
abdul099 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
UDF error - parabolic velocity profile - 3D turbine Zaqie Fluent UDF and Scheme Programming 9 June 25, 2016 20:08
laminar velocity profile arashmarahel180 FLUENT 16 October 16, 2015 13:08
[swak4Foam] Scale discrete inlet velocity profile with groovyBC cboss OpenFOAM Community Contributions 1 June 20, 2010 14:02
A girl fail to plot velocity profile when mesh changes + Wall function asherah STAR-CCM+ 0 February 19, 2010 18:45
Logarithmic velocity profile cfdworker Fluent UDF and Scheme Programming 0 April 23, 2009 20:09


All times are GMT -4. The time now is 22:37.