Elmer Discussion Forum

Dear Elmer group

How many Gauss points does Elmer use by default in each direction for linear and quadratic elements, respectively? Is it solver dependent or general? How is it possible to change the default?

Regards, Hamed

Hi Elmer
As Peter stated "the ALE formulation of Elmer is only 1st order in time accuracy as has been demonstrated by mulvrova". Unfortunately I can't find the topic that contains this demonstration. Would you please help me on this matter?
Regards, Hamed

Dear Elmer group In tutorial: Fluid flow around an elastic beam: Youngs Modulus = Variable time Real Procedure "FsiStuff" "Youngs" While using the above strategy for stiffening the mesh in regions near the beam tip works effectively in older versions of Elmer (like SVN4214) for b...

Dear Elmer group I’m working on an axisymmetric steady-state FSI problem. But there are is a contradiction in the results that I’ll try to explain it in the following. The problem initial state is shown in Fig. (1). As can be seen in this figure the fluid enters from the left inlet and exits from th...

Hi,
No, as far as I know.

Dear Elmer group I’m working on a steady state FSI problem. But the problem doesn’t converge when I decrease the solid stiffness in order to increase its deflection (convergence doesn’t occur below a distinct value of stiffness). I attached the initial and final configuration of the problem and also...

Hi Milch You can use a Fortran function like below. Note that you have to compile it to have MyHeatFlux.dll. For more information see Elmersolversmanual.pdf. You can also use matc functions in the sif file which is more straightforward. See e.g. http://www.elmerfem.org/forum/viewtopic.php?f=3&t=...

Hi Milch
Send the equation of the function that you want, then . . .

Regards, Hamed

Dear Elmer
I'll be extremely grateful if one can answer my previous question (the variables associated with convective flux).
Regards, Hamed

Hi Rodrigo You should not be worried about the negative value for the pressure, since it's not the absolute pressure but the relative pressure(relative for example to the atmosphere pressure). Let explain it for you this way. Assume that the fluid flow is lossless so it obeys the Bernouli equation, ...