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

Different version of Fluent, different solution!

Register Blogs Community New Posts Updated Threads Search

Like Tree1Likes
  • 1 Post By LoGaL

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   January 13, 2021, 11:53
Default Different version of Fluent, different solution!
  #1
New Member
 
Kim
Join Date: Jun 2014
Posts: 17
Rep Power: 11
Kim yongchul is on a distinguished road
Dear all,

Happy New Year!
I have a problem in the solution. The solution (residuals, Velocity contours) is different between the versions of Ansys 18, Ansys 18.1 and Ansys2020. All conditions (Boundary conditions, Methods, residuals, UDF etc) are same.

I am running a case (using parallel processing) in Windows 10 (Ansys 18.1) of 5 processes and Linux (Ansys 18 and Ansys 2020 R2) in HPC of 16 processes. Will number of processes cause this problem?
Kindly help me in this regard. Please have a look at the residuals in the attachments.

Thank you.
Attached Images
File Type: jpg Windows-Ansys18.1.jpg (72.9 KB, 13 views)
File Type: jpg Linux-Ansys18.jpg (87.1 KB, 11 views)
Kim yongchul is offline   Reply With Quote

Old   January 13, 2021, 14:12
Default
  #2
Senior Member
 
Lorenzo Galieti
Join Date: Mar 2018
Posts: 373
Rep Power: 12
LoGaL is on a distinguished road
Yes, number of processors, different version and operative systems can give slightly different results
Kim yongchul likes this.
LoGaL is offline   Reply With Quote

Old   January 14, 2021, 00:05
Default
  #3
New Member
 
Kim
Join Date: Jun 2014
Posts: 17
Rep Power: 11
Kim yongchul is on a distinguished road
Quote:
Originally Posted by LoGaL View Post
Yes, number of processors, different version and operative systems can give slightly different results
Thank you LoGal.
Kim yongchul is offline   Reply With Quote

Reply

Tags
ansys fluent 2020r2, different solution, linux, windows


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
Convergence Centurion2011 FLUENT 48 June 14, 2022 23:29
SU2 7.0.7 Built on CentOS 7, parallel computation pyscript mpi exit error? EternalSeekerX SU2 3 October 9, 2020 18:28
different results form openfoam 3.0.1 to 1912 yuno OpenFOAM Running, Solving & CFD 0 September 28, 2020 03:09
Error swithcing between single e parallel version of fluent bishop_house FLUENT 0 February 28, 2011 12:14
OpenFOAM-1.6 install cookbook MadsR OpenFOAM Installation 372 November 20, 2010 11:57


All times are GMT -4. The time now is 05:53.