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

Residual Jacobian Matrix For Viscous Nodes

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   August 4, 2014, 11:09
Default Residual Jacobian Matrix For Viscous Nodes
  #1
New Member
 
Ashkaari
Join Date: May 2014
Posts: 5
Rep Power: 12
Ashkaari is on a distinguished road
Hello!
I'm working on a flow solver for NS equations. The LU-SGS method is used.
And I am not sure about how to deal with the residual jacobian for wall nodes.
Because of no-slip and isothermal wall conditions, residual of velocity is 0.
So is it suitable to simply set entries of second and third row of jacobian all 0?
Ashkaari is offline   Reply With Quote

Reply

Tags
boundary condition, jacobian matrix


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
simpleFoam error - "Floating point exception" mbcx4jc2 OpenFOAM Running, Solving & CFD 12 August 4, 2015 03:20
Unstabil Simulation with chtMultiRegionFoam mbay101 OpenFOAM Running, Solving & CFD 13 December 28, 2013 14:12
pimpleFoam: turbulence->correct(); is not executed when using residualControl hfs OpenFOAM Running, Solving & CFD 3 October 29, 2013 09:35
calculation stops after few time steps sivakumar OpenFOAM Running, Solving & CFD 7 March 17, 2013 07:37
Orifice Plate with a fully developed flow - Problems with convergence jonmec OpenFOAM Running, Solving & CFD 3 July 28, 2011 06:24


All times are GMT -4. The time now is 16:54.