Search found 11 matches

by han2014
11 Apr 2016, 15:42
Forum: Installation & compilation
Topic: Elmer compilation problem on Cray cluster
Replies: 3
Views: 4138

Re: Elmer compilation problem on Cray cluster

Hi KaiMartin & Thomas,

Thanks a lot for the hints. I will give it a try again.

Regards,

Han
by han2014
03 Mar 2016, 19:42
Forum: Installation & compilation
Topic: Elmer compilation problem on Cray cluster
Replies: 3
Views: 4138

Elmer compilation problem on Cray cluster

Hello, I am having problems with compilation of Elmer on a Cray XC30 cluster. I've downloaded the source code from the repository git://www.github.com/ElmerCSC/elmerfem My installation script is: #!/bin/bash module swap PrgEnv-cray PrgEnv-gnu module load cray-libsci module load cray-tpsl rm -r CMake...
by han2014
18 Sep 2014, 18:14
Forum: ElmerSolver
Topic: Source term of line integral form
Replies: 0
Views: 1316

Source term of line integral form

Dear all, I want to model a heat source term within a cylinder wall, which basically reads http://i58.tinypic.com/16jrgx5.png The first term (f1) is due to heat release from a reaction modeled using Arrhenius form, which is temperature dependent. This can be easily obtained using MATC expression or ...
by han2014
15 Aug 2014, 14:32
Forum: General
Topic: Thermomechanical problem of a pressure vessel
Replies: 4
Views: 4555

Re: Thermomechanical problem of a pressure vessel

Hi LeeA,

Thanks. I will check on Calculix too.

regards,

Han
by han2014
14 Aug 2014, 13:14
Forum: General
Topic: Heat source as exported variable
Replies: 0
Views: 1954

Heat source as exported variable

Hi all, I have been puzzled by a problem with exporting heat source values for post-processing (I use Paraview, hence vtu format). This should be really trivial, but I can't find any solution so far. Using a simple test case of heat conduction in a 2-D square box with a Gaussian heat source in the c...
by han2014
07 Jul 2014, 13:34
Forum: General
Topic: Error in simulation using a user-defined boundary condition
Replies: 4
Views: 2642

Re: Error in simulation using a user-defined boundary condition

Hi all, Just to confirm that I have found what the problem is. The bc code should have been written like this: convbc = - alpha_hot * (temp - Te) instead of convbc = alpha_hot * (temp - Te) & / (HeatCapacity(ParentElementNode) * Density(ParentElementNode)) and the specification in *.sif should h...
by han2014
04 Jul 2014, 15:08
Forum: General
Topic: Error in simulation using a user-defined boundary condition
Replies: 4
Views: 2642

Re: Error in simulation using a user-defined boundary condition

Hi Peter, Another confusing thing that I have noticed. I compared the results of 2 simulations on a simple heat conduction problem across a square domain as illustrated in the following figure. http://i60.tinypic.com/j93p95.png The first simulation is the standard simulation with the following BC in...
by han2014
03 Jul 2014, 13:27
Forum: General
Topic: Error in simulation using a user-defined boundary condition
Replies: 4
Views: 2642

Re: Error in simulation using a user-defined boundary condition

Hi Peter, Thanks for your reply. I can confirm that the simulation is now running, with the following: Boundary Condition 2 Target Boundaries = 3 Heat Flux = Variable Time Real Procedure "convRadBC" "convRadBC" Emissivity = 0.85 External Temperature = 850.0 Absorbance = Real 0.85...
by han2014
02 Jul 2014, 12:59
Forum: General
Topic: Error in simulation using a user-defined boundary condition
Replies: 4
Views: 2642

Error in simulation using a user-defined boundary condition

Hi all, I am a beginner in Elmer. As a first trial to implement a user-defined boundary condition (b.c.), I made a simple b.c that combines convective and radiative heat fluxes, following these steps: 1. Referring to ElmerSolverManual (part: Basic Programming p89) about an example to implement a bou...
by han2014
25 Jun 2014, 12:37
Forum: General
Topic: Thermomechanical problem of a pressure vessel
Replies: 4
Views: 4555

Re: Thermomechanical problem of a pressure vessel

Hi Peter, Thanks a lot for your reply. I agree that the isocurves of the stress fields agree with the reference, but only in the top and inner part of the vessel. If you look at the outer part of the vessel (which is made of an insulation material), the results in the reference show that the vonMise...