Elmer Discussion Forum

Peter, thanks for the quick reply. I'm still strugling as I dont have FsiStuff.dll in my library. I tried writing a text file (using the information in the aforementioned elmer tutorial) and adding this to the library but to no avail. I get a series of messages like this in the solver log: ERROR:: L...

Hi Chaps, I have fairly closely followed the elmer tutorial ''Fluid flow around an elastic beam'', attempting to update it appropriately as its an obsolete problem. I've now hit a stumbling block, the Navier-Stokes iterations run correctly (and the flow around the beam looks fine in postprocessor) b...

Hi Guys,

I have just been looking at the tutorial ''Smitc solver – Eigenmodes of an elastic plate'' which seems to have run fine (I have the displacements for the 10 modes simulated) but I cannot find where the eigenfrequencies are displayed. Can you point me in their direction?

Thanks,
John

Hi, I am using the Navier stokes equations, in my gemetry I fix an inlet, a outlet and walls (similar to the tutorials). The output file has the velocity vector and the pressure scalar. Some of the pressures are negative, which is of course not physical if this pressure represents the absolute press...

An improvement it has made:

Peter, Thanks for the reply.

I am trying your suggestion now, I didnt expect it would make any difference seeing as the nonlinear system newton after iterations is set to 3000.

John

Hi all. Last week I read the paper: "Peter Råback, Juha Ruokolainen, Mikko Lyly, Esko Järvinen. Fluid-structure interaction boundary conditions by artificial compressibility , A paper presented in ECCOMAS CFD 2001, Swansea 4-7 September" from the white papers section of the elmer site. Thi...

Hi guys, I am curious as to some behavior that I observe (sporadically) from the convergence of my solution. The type of behaviour is shown in my attachement, the relative change decreases nicely for a while, but then all of a sudden the rel.change jumps to about 1, where it oscillates for as long a...

Aha!

Thats appears to have sorted it, thankyou very much!

Attached is my project file minus the .msh file which makes the folder too big to upload to the forum.