Search found 4826 matches
- 07 Dec 2010, 23:17
- Forum: ElmerSolver
- Topic: Heat Transfer Coefficient
- Replies: 6
- Views: 7662
Re: Heat Transfer Coefficient
Hi, Looking at your original sif it seems at least that you're applying the "-discont" flag to a wrong bc (2 vs. 4). Also, if your "hand" is really at known temperature why wont you just skip the conduction in there and just solve the temperature in the air. I mean a proper therm...
- 07 Dec 2010, 02:05
- Forum: General
- Topic: Can I solve this with Elmer
- Replies: 4
- Views: 4170
Re: Can I solve this with Elmer
Hi Cris Well, I guess it might work. There is actually a nonlinear version (called ElasticSolver) of the StressSolver which would eliminate the need for mesh adaptation (unfortunately it doesn't have stress computation...). No matter which you choose there would probably be a limit on how soft the m...
- 06 Dec 2010, 19:12
- Forum: ElmerSolver
- Topic: Helmholtz solver excitation at selected node
- Replies: 8
- Views: 4902
Re: Helmholtz solver excitation at selected node
Hi, When your field is named "Pressure Wave" the Dirichlet condition should be given to "Pressure Wave 1" and "Pressure Wave 2", correspondingly. -Peter
- 06 Dec 2010, 01:02
- Forum: ElmerSolver
- Topic: Greenhouse simulation
- Replies: 3
- Views: 2948
Re: Greenhouse simulation
Hi 1) Yes, that's right. However, if the time-scales allow perhaps you could solve over so many periods (be it a day, or a year) that the history effect vanishes. Still you have to make some guess. You could also start off with a very long time and average enforcing. This should give you quite close...
- 06 Dec 2010, 00:45
- Forum: General
- Topic: Can I solve this with Elmer
- Replies: 4
- Views: 4170
Re: Can I solve this with Elmer
Hi, Unfortunately not. The little work on contact models has been experimental and limited in functionality. -Peter
- 04 Dec 2010, 02:10
- Forum: ElmerSolver
- Topic: Helmholtz solver excitation at selected node
- Replies: 8
- Views: 4902
Re: Helmholtz solver excitation at selected node
Hi Create a new BC section and instead of refering to "Target Boundaries" give "Target Coordinates". The closest node to the coordinate value will be chosen, for example Boundary Condition 7 Name = "FixedNode" Target Coordinates(1,3) = 1.2 2.3 0.0 Pressure 1 = Real 0.0 ...
- 02 Dec 2010, 18:15
- Forum: External tools
- Topic: Combination of .vtu results
- Replies: 2
- Views: 3653
Re: Combination of .vtu results
Hi
This should not be needed since many programs, such as Paraview and ViSit, can read the partitioned data. Just open the .pvtu file therein.
-Peter
This should not be needed since many programs, such as Paraview and ViSit, can read the partitioned data. Just open the .pvtu file therein.
-Peter
- 02 Dec 2010, 13:47
- Forum: ElmerSolver
- Topic: Adaptive Timestepping
- Replies: 9
- Views: 9129
Re: Adaptive Timestepping
Hi I would never have found out by myself what you have suggested (timestepping method = explicit Euler - what is that, and why is it better here? etc. etc.). Time integration methods such as the explicit Euler are not limited to just to FEM. In fact in FEM the time discretization is the only one th...
- 01 Dec 2010, 19:26
- Forum: Updates
- Topic: Elmer channel on Youtube
- Replies: 1
- Views: 14146
Elmer channel on Youtube
Hi All, Just for the fun of it, there is now a youtube channel for Elmer movies. See http://www.youtube.com/user/elmerfem It's biassed towards some fresh developments on particle trackers but hopefully with time it will more representative to all the features of Elmer. If you have, or intend to put,...
- 01 Dec 2010, 10:55
- Forum: ElmerSolver
- Topic: Divergence (with NaN steps) for Navier-Stokes equation
- Replies: 16
- Views: 13017
Re: Divergence (with NaN steps) for Navier-Stokes equation
Hi About ElmerGrid and gmsh: If you do not use physical entities then by default the mesh is cleaned and renumbered. This means that the '-autoclean' flag is enforced. This is because the default numbering of geometric entities is not ideal for Elmer. Also gmsh does not seem to be consistant with th...