CFD Online Logo CFD Online URL
Home > Forums > Main CFD Forum

Setting Solution Limits

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

LinkBack Thread Tools Display Modes
Old   January 3, 2006, 04:45
Default Setting Solution Limits
S K Prasad
Posts: n/a
This refers to supersonic flow over blunt cone. Knowing the inflow conditions i can estimate the stagnation pressure etc at the nose. If i set the maximum press in the "solution limit" option (Solve->controls->Limits) as staganation press i get a shock sticking to the nose....unphysical. However if i set the limit to say 2-3 times the staganation pressure...the contours are correct. This means that as flow evolves from initial conditions set (i.e iterations are going on), at some instant(s) the local flow is exceeding stagnation values.My question is why the intermediate max pres/den etc will exceed stagnation values as iteration progresses towards steady state? And what is the physics behind it?
  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
grid dependancy gueynard a. Main CFD Forum 19 June 27, 2014 21:22
Redefining variables in fluent instead using limits (control solution) akhlaghi FLUENT 0 February 19, 2011 07:14
Steady solution from Transient simulations wawa FLUENT 2 November 9, 2010 18:44
How to avoid exceeding solution limits for tempera xyx FLUENT 0 February 12, 2006 12:43
Wall functions Abhijit Tilak Main CFD Forum 6 February 5, 1999 02:16

All times are GMT -4. The time now is 11:24.