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

Radial inflow through perforated pipes

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

Reply
 
LinkBack Thread Tools Display Modes
Old   January 29, 2014, 20:36
Default Radial inflow through perforated pipes
  #1
New Member
 
Miguel Baritto
Join Date: Mar 2009
Location: Caracas,Venezuela
Posts: 16
Rep Power: 9
Miky1020 is on a distinguished road
Hi all,

I am simulating the flow in a pipe with radial perforations. I am attempting to do it by no having the perforations in the mesh but by setting a mass source term on the wall boundary condition, so I can avoid issues related with too different dimension scales in the mesh. The cylindrical surface of the pipe is defined as a wall with a mass source expressed by a mass flux and the velocity components to fix the direction. The inflow through the perforations is radial but the option to set the velocity components is only via cartesian coordinates.

Any advice?

Thanks in advance.
Miky1020 is offline   Reply With Quote

Old   January 30, 2014, 04:55
Default
  #2
Super Moderator
 
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 12,638
Rep Power: 98
ghorrocks is a jewel in the roughghorrocks is a jewel in the roughghorrocks is a jewel in the rough
Define the velocity of the mass source as a function of the position to give the direction in cartesian coordinates. For instance for a radius 1 circle on the XY plane it would be VelX = -x, Vely = -y, VelZ = 0.

I will let you sort out the transform to position it where you want and to scale it to get the correct velocity.
ghorrocks 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
Radial inflow through rotating cavity thrsdy CFX 7 June 14, 2013 14:09
Interface model for a radial inflow turbine kelinjose CFX 2 February 28, 2013 14:00
CFX application to radial inflow gas turbine Chetan Mistry CFX 5 June 2, 2007 13:13
radial inflow turbine rotor periodicity problem Nanda FLUENT 1 July 17, 2006 14:52
radial inflow turbine rotor periodicity problem Nanda FLUENT 0 July 11, 2006 20:35


All times are GMT -4. The time now is 19:13.