CFD Online URL
[Sponsors]
Home > Forums > FLUENT

flow through vertical pipe

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

Reply
 
LinkBack Thread Tools Display Modes
Old   September 21, 2010, 01:39
Default flow through vertical pipe
  #1
New Member
 
Praveen Mishra
Join Date: Jul 2010
Posts: 3
Rep Power: 6
pmishra76 is on a distinguished road
i am using fluent 6.3, and new to FLUENT , i am facing some difficulties while using fluent when working with vertical pipe.( in horizontal pipe flow every thing is ok) , my difficulty is while doing iteration, it gives Error:Floating point error: invalid number.
pmishra76 is offline   Reply With Quote

Old   September 21, 2010, 03:21
Default
  #2
Member
 
Phoevos
Join Date: Mar 2009
Posts: 85
Rep Power: 7
fivos is on a distinguished road
Are you using axis-symmetric solver? In that case, the axis of symmetry can be ONLY the X-axis (else you will get errors). If you want to model the vertical pipe you should design it as a horizontal pipe (on the X direction) and put gravity on the X-axis.

If you are not using axis -symmetric solver, then you must have done something wrong in the case set up. Do it again in the same way you did it for the horizontal pipe.
fivos is offline   Reply With Quote

Old   September 21, 2010, 03:41
Default
  #3
New Member
 
Praveen Mishra
Join Date: Jul 2010
Posts: 3
Rep Power: 6
pmishra76 is on a distinguished road
Dear fivos
yes, i am using axis-symmetric solver.but instead of horizontal pipe, i made vertical pipe......now i am trying with horizontal pipe.


thanks
pmishra76 is offline   Reply With Quote

Old   April 28, 2014, 12:01
Default Vertical pipe
  #4
Senior Member
 
Goutam Saha
Join Date: Dec 2011
Location: UK
Posts: 124
Rep Power: 5
Goutam is on a distinguished road
I am using a vertical pipe. I draw a 2D axi-symmetric horizontal pipe and I set the Boussinesq option available in the material panel (Density). I also set the gravity along X direction g = -9.81 m/s).

Is this settings correct for vertical pipe with Boussinesq approximation?

What will be the operating Temperature when I will set the gavity option enable? Is this the room temperature?

Thanks for your time.
Goutam 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
Disturbed flow field at outlet boundary (Multiphase flow through pipe) Michiel CFX 17 April 21, 2010 11:14
About Turbulence Intensity (Pipe flow assimilated) gRomK13 Main CFD Forum 1 July 10, 2009 04:11
Turbulence in a pipe flow JM Main CFD Forum 4 December 21, 2006 05:04
Domain for Pipe Flow Swarup FLUENT 0 September 29, 2005 00:25
outlet boudary condition for a flow in the pipe Atit CFX 2 November 9, 2004 18:43


All times are GMT -4. The time now is 04:06.