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

Setting of gradient type B.C. in Phoenics

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

Reply
 
LinkBack Thread Tools Display Modes
Old   February 10, 2011, 22:13
Lightbulb Setting of gradient type B.C. in Phoenics
  #1
New Member
 
designer spider
Join Date: Sep 2010
Posts: 7
Rep Power: 6
black_spider is on a distinguished road
hi guys, I wanna set gradient type boundary condition in simulation domain. How to do this in Phoenics?

like this: \frac{\partial \Phi}{\partial n}=0

and also such equation as B.C: \nabla (\epsilon \nabla \Phi)=0

Is GROUND coding helpful in these cases?
black_spider is offline   Reply With Quote

Old   April 25, 2011, 06:59
Default
  #2
New Member
 
designer spider
Join Date: Sep 2010
Posts: 7
Rep Power: 6
black_spider is on a distinguished road
hope for the best.

I have set the gradient type B.C. as follows:

CO as Fixflu and VAL as 0

Seems work good. Any more suggestion? Please let me know.
black_spider is offline   Reply With Quote

Old   May 4, 2011, 07:16
Default
  #3
New Member
 
Alexey Ginevsky
Join Date: Oct 2010
Location: Moscow
Posts: 6
Rep Power: 6
algin is on a distinguished road
Quote:
Originally Posted by black_spider View Post
hi guys, I wanna set gradient type boundary condition in simulation domain. How to do this in Phoenics?

like this: \frac{\partial \Phi}{\partial n}=0

and also such equation as B.C: \nabla (\epsilon \nabla \Phi)=0

Is GROUND coding helpful in these cases?
No ground coding is needed.
The zero flux is default boundary condition. Therefore you need not set anything on such bounds. If you want to use non-zero flux on bound then you should set CO=FIXFLU with one of EAST, WEST, SOUTH, NORTH, LOW or HIGH types of patch.
algin is offline   Reply With Quote

Reply

Tags
boundary condition, phoenics, simulation

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
Wind turbine simulation Saturn CFX 34 October 16, 2014 05:27
Segmentation Fault in fluent3DMeshToFoam cwang5 OpenFOAM Bugs 23 April 13, 2011 15:37
rhoSimpleFoam claco OpenFOAM 7 April 20, 2010 04:32
Problems with Turbulence Modeling ezsoal OpenFOAM Running, Solving & CFD 4 November 26, 2009 16:12
Trimmed cell and embedded refinement mesh conversion issues michele OpenFOAM Other Meshers: ICEM, Star, Ansys, Pointwise, GridPro, Ansa, ... 2 July 15, 2005 04:15


All times are GMT -4. The time now is 23:09.