CFD Online Logo CFD Online URL
Home > Forums > FloEFD, FloWorks & FloTHERM

floefd boundary

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

LinkBack Thread Tools Display Modes
Old   August 29, 2014, 22:58
Default floefd boundary
New Member
Join Date: Aug 2014
Posts: 1
Rep Power: 0
henduocha is on a distinguished road
When i select four surface loading 3m/s at the same time,and i select the surface respectlly four times loading 3m/s ,what's the difference?
henduocha is offline   Reply With Quote

Old   September 21, 2014, 16:41
Senior Member
Boris Marovic
Join Date: Jul 2009
Posts: 389
Rep Power: 12
Boris_M is on a distinguished road
Hi Henduocha,

I assume you mean that you apply a single inlet velocity boundary condition or you apply four seperate inlet velocity boundary conditions on these four surfaces.

If you look at the boundary condition reference coordinate system you will see that for one surface the reference system is the one of the surface you selected if it is a planar surface and the global coordinate system if it is a non-planar surface. In case you select a planar surface, the reference system changes to the global coordinate system as soon as you select the next surface. So in case you want to define a specific direction it becomes important to define the coordinate system for the correct definition of the direction.

I hope this helps,
Boris_M is offline   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
Implementation of boundary conditions for FVM Tom Main CFD Forum 7 August 26, 2014 05:58
GETVAR Error in Multiband Monte Carlo Radiation Simulation with Directional Source silvan CFX 3 June 16, 2014 09:49
Floating point exception: Zero divide liladhar CFX 11 December 16, 2013 05:07
CFX doesn't continue calculation... mactech001 CFX 6 November 15, 2009 22:25
Boundary conditions? Tom Main CFD Forum 0 November 5, 2002 02:54

All times are GMT -4. The time now is 13:26.