CFD Online Logo CFD Online URL
Home > Forums > Fluent UDF and Scheme Programming

How to get the solution of last time step?

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

LinkBack Thread Tools Display Modes
Old   September 15, 2010, 22:23
Default How to get the solution of last time step?
Join Date: Jun 2009
Posts: 34
Rep Power: 8
lzgwhy is on a distinguished road
Hi, here I have an intractable problem.
Now, I want to get the solution of last time step during the transient calculation. More detailedly, when the solution has been updated to that at time t+dt, however, I want to re-initialize the current solution by that at time t, i.e. get the solution of last time step. This can be done by saving the solution of last time step in the hard disk, and then re-read it again from the hard disk. But, this strategy not only wastes much time for the process of writing to and reading data from hard disk, but also impose damage on the hard disk for the same reason. One alternative to this strategy is just saving the data in memory and reading it again. However, can it be done in Fluent by UDF? If not, is there a method provided by Fluent to re-initialize the current solution by that of last time step without writing and reading data through hard disk?

lzgwhy is offline   Reply With Quote


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
Superlinear speedup in OpenFOAM 13 msrinath80 OpenFOAM Running, Solving & CFD 18 March 3, 2015 06:36
Time step in transient simulation shib FLUENT 0 June 17, 2010 13:07
Differences between serial and parallel runs carsten OpenFOAM Bugs 11 September 12, 2008 11:16
Could anybody help me see this error and give help liugx212 OpenFOAM Running, Solving & CFD 3 January 4, 2006 19:07
HELP TIME STEP!! merry FLUENT 2 March 25, 2004 15:38

All times are GMT -4. The time now is 10:34.