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

Please help me!!!

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

Reply
 
LinkBack Thread Tools Display Modes
Old   March 24, 2011, 01:39
Default Please help me!!!
  #1
New Member
 
sangbin park
Join Date: Nov 2010
Location: south korea
Posts: 8
Rep Power: 6
IUIU is on a distinguished road
Hi

first I'm not good at english writing. I 'll apologize about it.

But I really need help...

I'm studying about coal combustion (injection type)

And I used DO(radiation) option, and K-epsilon (viscous)...

But everytime I try iteration,

this error message coming

<turbulent viscosity limited to viscosity ratio of 1.000000e+005 in 19682 cells>

It make me crazy.

what is wrong to this Fluent setting?

please help me

please~~~
IUIU is offline   Reply With Quote

Old   March 24, 2011, 02:53
Default
  #2
New Member
 
mohsen
Join Date: Feb 2011
Posts: 13
Rep Power: 6
momech is on a distinguished road
Hi.
you can set it's maximum value to higher one at: SOLVE>CONTROLS>LIMITS...
and it may come true at further ittarations!
good lock.
momech is offline   Reply With Quote

Old   March 24, 2011, 03:12
Default
  #3
New Member
 
sangbin park
Join Date: Nov 2010
Location: south korea
Posts: 8
Rep Power: 6
IUIU is on a distinguished road
thank you momech, I'll try your method. thank you thank you
IUIU is offline   Reply With Quote

Old   March 27, 2011, 05:02
Default
  #4
New Member
 
tirtha
Join Date: Mar 2011
Posts: 11
Rep Power: 6
tirtha is on a distinguished road
better you should try to alter the default values of VISCOSITY, THERMAL CONDUCTIVITY AND DENSITY of the mixture template you have created

what model your using in modelling "species transport" or "non premixed model"


tirtha
tirtha is offline   Reply With Quote

Old   March 27, 2011, 08:16
Default
  #5
New Member
 
sangbin park
Join Date: Nov 2010
Location: south korea
Posts: 8
Rep Power: 6
IUIU is on a distinguished road
I already used species transport.

Now I used patch option and limit option~ etc...

so my situation is more better

But thank you for your reply.

thank you
IUIU is offline   Reply With Quote

Reply

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



All times are GMT -4. The time now is 07:07.