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

wall boundary conditions

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   August 21, 2008, 00:48
Default wall boundary conditions
  #1
sivaramakrishnaiah
Guest
 
Posts: n/a
hi what is meant by rotating wall,how to give in CFX-11
  Reply With Quote

Old   August 21, 2008, 11:14
Default Re: wall boundary conditions
  #2
MAB
Guest
 
Posts: n/a
the wall would rotate with a sepecified velocity( angular velocity)
  Reply With Quote

Old   August 21, 2008, 11:25
Default Re: wall boundary conditions
  #3
sivaramakrishnaiah
Guest
 
Posts: n/a
i given in that some error is showing my boundary conditions: inletressure 7.5bar and tem;167C outlet i given mass flow rate:0.3kg/s fluid:steam

ERROR #002100048 has occurred in subroutine SU_BNEXT. | | Message: | | All vertices for a fluid domain lie on boundaries. This is | | considered to be a fatal error because control volume gradients | | cannot be calculated, leading to serious discretization error. | | | | A common cause for this error is a mesh which is only one | | element thick, without symmetry or 1:1 periodicity on the lateral | | boundaries. If you have this situation, and the domain is | | two-dimensional, please change the lateral boundary conditions | | to symmetry or 1:1 periodicity. Alternatively, for | | three-dimensional simulations, please ensure that your mesh | | has at least two elements across. | | | | Execution is terminating. This error message can be bypassed by | | setting the expert parameter 'boundary vertex check = f', but | | be aware that doing so may lead to sigificant solution error. | +--------------------------------------------------------------------+
  Reply With Quote

Reply


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 Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
wall functions and boundary conditions in OF 1.7.1 cristobal OpenFOAM 2 May 6, 2011 05:10
Wall modelling and boundary conditions: why specify value for turbuelnce quantities? djbungee OpenFOAM Programming & Development 2 July 30, 2010 08:32
RPM in Wind Turbine Pankaj CFX 9 November 23, 2009 05:05
Wall boundary conditions for 3d-cylinder Martin Bellmann FLUENT 1 July 11, 2008 14:04
Boundary conditions? Tom Main CFD Forum 0 November 5, 2002 02:54


All times are GMT -4. The time now is 17:02.