CFD Online Logo CFD Online URL
Home > Forums > Software User Forums > ANSYS > FLUENT

Convergence problems... need help urgent!!

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

LinkBack Thread Tools Display Modes
Old   March 15, 2007, 01:58
Default Convergence problems... need help urgent!!
Posts: n/a
Hi folks, Im dealing with a valve in a duct, 0.05 meter of diameter and long enough to avoid reverse flow and to get a full developed flow. I have to use nitric acid and the mass flow is 15 liters/sec. The problem is that I have to simulate the valve when initiates the opening, so the velocity between the valve and the tube wall is increased very high. Wich models and settings in general are prefered for this kind of problems?

Thanks for your time.

  Reply With Quote

Old   March 15, 2007, 02:04
Default Re: Convergence problems... need help urgent!!
Posts: n/a
Oh! I almost forget... The fluid is supossed to be incompresible. So what density model should I use? constant?

  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
Gas-liquid vertical separator, problems with convergence juliom Main CFD Forum 0 October 5, 2011 20:20
Convergence Problems Carlos FLUENT 0 March 12, 2007 03:44
NACA0012 Convergence Problems StudentAndrew CFX 6 November 21, 2005 07:49
Convergence problems Simone Siemens 5 June 29, 2005 10:48
Convergence problems Chetan FLUENT 3 April 15, 2004 19:13

All times are GMT -4. The time now is 13:41.