CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > CFD Online Community > Site Help, Feedback & Discussions

Timestep size and resulted residuals in transient DO radiation model (no flow)

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   May 25, 2020, 09:03
Default Timestep size and resulted residuals in transient DO radiation model (no flow)
  #1
New Member
 
hussein hussein
Join Date: May 2020
Posts: 1
Rep Power: 0
hsm86 is on a distinguished road
Hellow,

I am doing transient heating for static fluid (fluid in a container, no flow). I knew that the timestep size depends on the mesh and velocity scales but the velocity is zero in my model. Should I use a very small timestep size like 0.001 or even smaller or can I use higher values like 1 or even 10 s to deal with the duration of my work which is 25 min. I've tried 10 s (image link attached) and gave me the same results when I used 0.5 s.Thank you

image >> https://drive.google.com/file/d/187e0VUyASm39m0SF8O02aGC7IxC5-d6Y/view?usp=sharing[/IMG]
hsm86 is offline   Reply With Quote

Reply

Tags
fluent, residuals every iteration, timestep size, transient 3d

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



All times are GMT -4. The time now is 10:40.