Elmer Discussion Forum

The solution with the second-order basis functions could also be attempted by giving "Quadratic Approximation = True" in the solver section. This might work if the background (nodal) mesh consists of either the lowest-order or second-order elements.

-- Mika

Hi, I see a lot of warnings: WARNING:: LinesOfCurvatureFrame: Possibly very rough geometry model used which is very strange because the mesh looks almost the same as the one used by kevinarden. Additionally to that, the results are not correct. Hi, I eventually had time to look at this trouble. If y...

Hi, Elmer supports mesh adaptivity very selectively, and the Helmholtz solver has not been modified to handle adaptivity. I checked that only the following solver codes read the keyword "Adaptive Mesh Refinement": modules/HeatSolve.F90 modules/StatElecSolve.F90 modules/FlowSolve.F90 module...

Sayan wrote: ↑24 Mar 2021, 14:10 My file is not considering damping though I have defined rayleigh damping

The sif file has

Rayleigh Beta=Real 0.0001

ElasticSolver however tries to read "Rayleigh Damping Alpha" or "Rayleigh Damping Beta", so try with

Rayleigh Damping Beta = Real ...

-- Mika

Hi, A general trouble with getting accurate director data is that Elmer doesn't obtain geometry data directly from a geometric model, since only mesh files are read. Thus there is no immediate way to extract the content of mesh.director but the user has to create it somehow. I have written a simple ...

the force is planar. for example 10N in X or Y direction (Gmsh .geo coordinate system). However, I could not find any option other than Pressure. Any idea how that should be done? The plate solver (SMITC) doesn't allow in-plane (membrane) stress resultants, while the shell solver (or the old facet ...

Nowadays a solver may indeed activate the execution of another solver. For some documentation of different options see the section 13.2 of ElmerSolver Manual (http://www.nic.funet.fi/pub/sci/physics ... Manual.pdf).

-- Mika

Hi, The keyword for giving a mesh in solver section is "Mesh". For example, if the mesh files are contained in directory "solverwise_mesh" under the working directory, one may give the command Mesh = "solverwise_mesh". If some solver section doesn't specify a mesh, then...

Seeing "Version: 9.0 (Rev: Release, Compiled: 2020-12-13)" I doubt your executable has not been compiled using fresh source files from the devel branch. For example, if the source files are the latest versions from Dec 11, 2020, Elmer is expected to output the revision information as MAIN:...

On the other hand the keyword "Pressure i" defines directly the components of the traction vector s(n) with respect to the basis vectors of the global frame. In this case the normal is automatically directed by Elmer to point outwards from the body containing the fluid. To get the same pro...