Search found 94 matches

by tzwinger
25 Feb 2010, 10:27
Forum: Installation & compilation
Topic: user-defined library segmentation fault
Replies: 4
Views: 4149

Re: user-defined library segmentation fault

Hi,
hard to tell without debugging info where things go wrong. As a first try I'd take out the "Eliminate Dirichlet". If you have a pathological case, you could send it to me.

Cheers,

Thomas
by tzwinger
24 Nov 2009, 15:12
Forum: ElmerSolver
Topic: Modelling turbulent flow
Replies: 2
Views: 4096

Re: Modelling turbulent flow

Martijn, I am astonished that you get convergence at all, especially with the higher Re-numbers. perhaps you could take 2 measures: 1) switch in a turbulence model (k-epsilon, for instance) 2) try to resolve (I do not know how fine your mesh is now) finer around the cylinders And finally, some effec...
by tzwinger
24 Nov 2009, 14:20
Forum: ElmerSolver
Topic: derivative wrt normal vector
Replies: 5
Views: 5573

Re: derivative wrt normal vector

Hi Suren, (i) In the NS-source code I can see an internal subroutine LCondensate (for nb > 0) ... what does that do actually? I have coded without this... but got a good result in case of Newtonian fluid (flow law exponent n =1)... including this subroutine doesn't affect/improve the outcomes... Thi...
by tzwinger
09 Sep 2009, 08:59
Forum: Installation & compilation
Topic: Installing Elmer on Debian Lenny
Replies: 7
Views: 10155

Re: Installing Elmer on Debian Lenny

I'm not 100% sure, but I believe Debian 5.0 provides both VTK (libvtk5-qt4-dev) and OpenCascade (libopencascade-dev). See also http://www.elmerfem.org/wiki/index.php/Debian/Ubuntu_Packages I think the OpenCascade package for Lenny is to be found in Adam Powell's repository (see http://www.opennovat...