Search found 1168 matches

by annier
10 Jan 2024, 19:08
Forum: ElmerSolver
Topic: restart with init file
Replies: 10
Views: 1175

Re: restart with init file

Dear Kevin, For the following simulation settings, Header ... Mesh DB "./../" "Mesh_1" ... End Simulation ... Output File = "../Mesh_1/old.result" Output File = "../Mesh_1/old.result" ... End The following error occurs : SaveResult: ---------------------------...
by annier
08 Jan 2024, 11:29
Forum: ElmerSolver
Topic: restart with init file
Replies: 10
Views: 1175

Re: restart with init file

Hi, The code for producing old.result file Output File = "old.result" Binary Output = Logical True assumes that the directory of the mesh is in the same directory as the sif file i.e. Mesh DB "." "Mesh1" . How do we modify the path for the output restart file old.result...
by annier
30 May 2023, 01:33
Forum: General
Topic: run ElmerFEM in Google Colab
Replies: 4
Views: 544

Re: run ElmerFEM in Google Colab

I tried running this ipynb file with jupyter notebook in my local PC (with all requirements pre-installed beforehand), and it works perfect.

In order to run in the notebook within the local computer, I made the following type of change:

Code: Select all

%%shell
ls
with

Code: Select all

#%%shell
!ls
by annier
10 May 2023, 20:28
Forum: General
Topic: Natural Convection
Replies: 21
Views: 1806

Re: Natural Convection

For obtaining converged simulations with Navier-Stokes equations, it is generally recommended to start the test cases with the following settings:
1. large value of dynamic viscosity
2. very small time step size (e.g. if coordinate scaling = 1.0E-03 , time step can be 1.0E-4 or less)
by annier
30 Mar 2023, 01:48
Forum: General
Topic: Good tutorials or refs for advanced meshing
Replies: 3
Views: 577

Re: Good tutorials or refs for advanced meshing

A good article that discusses about handling mortar boundary conditions using Elmer software. Gustafsson, T., Råback, P., & Videman, J. (2023). Mortaring for linear elasticity using mixed and stabilized finite elements. Computer Methods in Applied Mechanics and Engineering, 404, 115796. https://...
by annier
30 Mar 2023, 01:46
Forum: ElmerSolver
Topic: Hexahedral mesh - error message - magnetodynamic model
Replies: 6
Views: 1175

Re: Hexahedral mesh - error message - magnetodynamic model

Dear Frederic,
Can you upload the file corresponding to the corrected mesh?

Best Regards,
Anil
by annier
30 Mar 2023, 01:29
Forum: ElmerSolver
Topic: Anisotropic material with StatCurrentSolver
Replies: 2
Views: 564

Re: Anisotropic material with StatCurrentSolver

Hi m_nadimii, Yes the electric conductivity materials properties can be a tensor (please refer the following snippet at https://github.com/ElmerCSC/elmerfem/blob/devel/fem/src/modules/StatCurrentSolve.F90 ) . So, anisotropy can be directly supplied via sif. IF( .NOT. GetCondAtIp ) THEN k = ListGetIn...
by annier
30 Mar 2023, 00:51
Forum: ElmerSolver
Topic: Crystal_Growth with Phase Change
Replies: 2
Views: 567

Re: Crystal_Growth with Phase Change

Dear Roland, The use of mesh update solver is the limiting factor in my guess. It might be useful for shape change or mesh deformation , that happens at a small rate. I do not know whether the eulerian method such as "Level-set solver" is well suited for your case. There used to be an issu...
by annier
30 Mar 2023, 00:41
Forum: ElmerSolver
Topic: Issue with temperature dependent emissivity
Replies: 3
Views: 603

Re: Issue with temperature dependent emissivity

Dear Arved,
If you can upload a complete sif file with a simplified geometry/mesh file, then we can test it in our computers and provide the feedback.

Best Regards,
Anil
by annier
04 Mar 2022, 19:51
Forum: ElmerSolver
Topic: System diverged over tolerance
Replies: 7
Views: 5534

Re: System diverged over tolerance

Dear Peter,
The problem got solved by reducing the timestep sizes further.
In my numerical formulation, the problem disappears when timestep sizes is kept below 1.0E-05

Code: Select all

Timestep Sizes (1) =1.0e-5  ! keeping it equal to or less than 1.0E-05 
Anil