CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > SU2

need help for Tutorial 3 - Laminar Flat Plate

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

Reply
 
LinkBack Thread Tools Display Modes
Old   August 19, 2013, 07:29
Default need help for Tutorial 3 - Laminar Flat Plate
  #1
New Member
 
wubin
Join Date: Mar 2013
Posts: 9
Rep Power: 4
nuaawubin is on a distinguished road
when i come to tutorial 3:Laminar Flat Plate,i did as the tutorial guidlines,but i din't get right results.
here is the cfg file and the results.
could anyone help me?
ps: i must say when i set the CFL=(1.2,50,1025),then i will get NAN.

PPS:just a moment ago,i tried Tutorial 5 - Turbulent Flat Plate,but the results seems wrong also!!!
Attached Images
File Type: jpg export.jpg (10.7 KB, 23 views)
File Type: png 2013-08-19_201126.png (8.9 KB, 19 views)
Attached Files
File Type: txt lam_flatplate.txt (9.0 KB, 11 views)

Last edited by nuaawubin; August 19, 2013 at 08:18. Reason: add more information
nuaawubin is offline   Reply With Quote

Old   August 19, 2013, 10:28
Default
  #2
Member
 
Jianming Liu
Join Date: Mar 2009
Location: China
Posts: 66
Rep Power: 8
liujmljm is on a distinguished road
The reason for NaN maybe is the limit of CFL is too big (you set it equal to 1025).
liujmljm is offline   Reply With Quote

Old   August 20, 2013, 06:34
Default not this reason
  #3
New Member
 
wubin
Join Date: Mar 2013
Posts: 9
Rep Power: 4
nuaawubin is on a distinguished road
Quote:
Originally Posted by liujmljm View Post
The reason for NaN maybe is the limit of CFL is too big (you set it equal to 1025).
i know that,so the CFL number in the tutorial 3 is not good,but i change it to 10,and then i get the results as the first picture in my thread(the results is not agreement with the results in the tutorial 3).
the second picture is the tutorial 5's solver error,no matter what CFL number i set ,it runs NAN.
nuaawubin 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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Boundary Layer of Laminar Flow over a Flat Plate Blasius_Pohlhausen_Crocco Main CFD Forum 12 September 30, 2013 17:35
incompressible, 2-D laminar flow over flat plate... varunjain89 Main CFD Forum 3 March 6, 2012 12:13
Laminar flow over a flat plate Nick R CFX 3 November 21, 2010 20:43
laminar flow on flat plate AmirFluid Main CFD Forum 7 June 22, 2010 05:49
compressible laminar flow over flat plate varunjain89 Main CFD Forum 17 March 25, 2010 00:51


All times are GMT -4. The time now is 19:43.