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

Transient Conditional Time step

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   June 20, 2012, 01:11
Default Transient Conditional Time step
  #1
New Member
 
Bhavik
Join Date: Apr 2012
Location: Arlington, TX
Posts: 14
Rep Power: 13
bhavik139 is on a distinguished road
Hi everyone,
I am trying to solve a transient problem comprising of the following data-
There is a grid where at a time only one block is heated then the power is transferred to another block.
Say for example block 1 is heated for 3 secs after that block 2 is heated from 3 secs to 6 secs and block 3 from 6 secs to 9 secs.
And I have to find the temperature distribution at every time step.

So can anyone tell me how can I be able to do the above.....
bhavik139 is offline   Reply With Quote

Old   June 20, 2012, 03:18
Default Hi
  #2
Senior Member
 
Danial
Join Date: Nov 2011
Posts: 179
Rep Power: 14
Danial Q is on a distinguished road
Regarding your problem statement, if i understood it well, I think you can define temperature as a function of time,

Say, for Time(t) [0 to z] sec, Temp[T] for block 1 is T1 (just notation for block1) and if "t " is greater than "z" secs "T" becomes 'T2' (just change the notation) and so on. In my opinion, you can easily generate an expression of temp as a function of time.
It is just an idea , you can give it a shot if it works.Bingooooooooo! I am sure Glenn will correct me if I am mistaken.
Danial Q is offline   Reply With Quote

Old   June 20, 2012, 14:20
Default Hi Danial
  #3
New Member
 
Bhavik
Join Date: Apr 2012
Location: Arlington, TX
Posts: 14
Rep Power: 13
bhavik139 is on a distinguished road
I want to give power to each block or field.
Please find the attachment it has the geometry.
Attached Images
File Type: jpg Grid.jpg (27.3 KB, 3 views)
bhavik139 is offline   Reply With Quote

Old   June 20, 2012, 15:08
Default
  #4
Member
 
Luis Filipe Fabiani
Join Date: Apr 2009
Posts: 43
Rep Power: 16
lffabiani is on a distinguished road
It's similar to this other thread: http://www.cfd-online.com/Forums/cfx...aser-beam.html

Take a look at the CEL expressions, the Help has many examples.
lffabiani is offline   Reply With Quote

Old   June 20, 2012, 16:37
Default
  #5
New Member
 
Bhavik
Join Date: Apr 2012
Location: Arlington, TX
Posts: 14
Rep Power: 13
bhavik139 is on a distinguished road
Hi, Can anyone please send me any link or resource for learning the CEL as I am not able to understand it properly from the help section.

Last edited by bhavik139; June 21, 2012 at 02:46.
bhavik139 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
SLTS+rhoPisoFoam: what is rDeltaT??? nileshjrane OpenFOAM Running, Solving & CFD 4 February 25, 2013 05:13
plot over time fferroni OpenFOAM Post-Processing 7 June 8, 2012 08:56
directMapped problem panda60 OpenFOAM Bugs 4 July 8, 2010 11:23
Time step in transient simulation shib FLUENT 0 June 17, 2010 14:07
Convergence moving mesh lr103476 OpenFOAM Running, Solving & CFD 30 November 19, 2007 15:09


All times are GMT -4. The time now is 20:10.