Search found 23 matches

by VVS
11 Feb 2014, 15:34
Forum: ElmerSolver
Topic: Elmer7 Transient Heat Equation
Replies: 9
Views: 3034

Re: Elmer7 Transient Heat Equation

Thanks for your help. I figured it out. My project is slowly coming to an end. The final step I have to do now is to plug in realistic parameters, by converting parameters of heat flux to parameters of mass diffusion. I have a question regarding this. How exactly is the heat flux boundary condition ...
by VVS
16 Jan 2014, 17:01
Forum: ElmerSolver
Topic: Elmer7 Transient Heat Equation
Replies: 9
Views: 3034

Re: Elmer7 Transient Heat Equation

Hi Matthias! Thanks for you help. I figured out the problem. Actually there was no problem. It was just the first frame which looks really messed up. But the rest of frames converged nicely and the distribution looks smooth even when playing. But I now have a different problem. I want to plot the he...
by VVS
20 Dec 2013, 16:59
Forum: ElmerSolver
Topic: Convergence History
Replies: 8
Views: 6016

Re: Convergence History

Hi Annier!

Thanks for the post.
I added the code you posted at the end of the SIF file.
But after the simulation there isn't any vtu file in the project folder nor in the mesh folder.

Thanks
VVS
by VVS
20 Dec 2013, 14:53
Forum: ElmerSolver
Topic: Convergence History
Replies: 8
Views: 6016

Re: Convergence History

Hi,

I changed the simulation a little.
I changed the top boundary condition from an absolute temperature to a flux.
In ElmerPost I get a reasonable result but it is static and I'd like to see the transient.
How do I see the transient in ElmerPost?

thanks
VVS
by VVS
12 Dec 2013, 16:53
Forum: ElmerSolver
Topic: Elmer7 Transient Heat Equation
Replies: 9
Views: 3034

Re: Elmer7 Transient Heat Equation

Hi, The Geometry os a cone with a sphere at the bottom of the cone. The temperature is in Kelvin I think. 0 is of course unrealistic, but I just wanted to test whether it works. The problem I think is that "Boundary Condition 1" is not compatible with the Initial Condition, because I am setting the ...
by VVS
12 Dec 2013, 16:23
Forum: ElmerSolver
Topic: Elmer7 Transient Heat Equation
Replies: 9
Views: 3034

Re: Elmer7 Transient Heat Equation

Hi,

Yes I have defined initial conditions.

Here is the Sif file
case.sif
Sif file
(3.15 KiB) Downloaded 200 times
thank you
by VVS
12 Dec 2013, 15:42
Forum: ElmerSolver
Topic: Elmer7 Transient Heat Equation
Replies: 9
Views: 3034

Elmer7 Transient Heat Equation

Hi, I want to simulate the transient behaviour of a cone-cell geometry. I have already done steady state analysis by setting the Temperature at the top and fixing the heat flux along the edges of the structure. Now I would like to simulate the transient behaviour. I tried by changing the simulation ...
by VVS
22 Nov 2013, 20:47
Forum: ElmerPost
Topic: 3D Visualization
Replies: 8
Views: 4920

Re: 3D Visualization

Hey!
Thanks for the hint Matthias!

but where exactly do I write Output File = "myfile.vtu"?

thanks
VVS
by VVS
14 Nov 2013, 13:29
Forum: ElmerPost
Topic: 3D Visualization
Replies: 8
Views: 4920

Re: 3D Visualization

Hi Matthias!

Thanks for the quick reply.
Do you mean tvk or vtk output?
Could you please refer me to a manual about how to write output?

thanks
VVS
by VVS
14 Nov 2013, 12:32
Forum: ElmerPost
Topic: 3D Visualization
Replies: 8
Views: 4920

Re: 3D Visualization

Thanks. I have another question though. I have managed to show the temperature distribution inside my geometry. But now I want to be able to find out the temperature at a specific point inside the geometry. I want to be able to plot the temperature distribution along a specific curve which I define....