Search found 24 matches

by diana.carlson
26 Jan 2010, 23:24
Forum: ElmerSolver
Topic: Some required mesh routines
Replies: 3
Views: 2954

Re: Some required mesh routines

Hi
The interpolation should be performed over a relatively small part of the domain not all of the mesh. Should I still use "InterpolateMeshToMesh"?
Thanks,
Diana Carlson, NY
by diana.carlson
25 Jan 2010, 11:35
Forum: ElmerSolver
Topic: Some required mesh routines
Replies: 3
Views: 2954

Some required mesh routines

Hi there I want to accomplish the following tasks: 1- Identifying the element that contains a particular coordinates point 2- Distribute (interpolate) a quantity (e.g. velocity or force) from a node to its surrounding nodes in a particular domain Is there any routine available in Elmer to perform th...
by diana.carlson
13 Jan 2010, 20:23
Forum: ElmerSolver
Topic: Overlapping meshes
Replies: 1
Views: 2337

Overlapping meshes

Hi there I want to solve an FSI problem that involves two overlapping meshes, data of which must be interpolated conversely (from one to another and vice versa). One is background and fixed and the other is moving. Do you have any idea for solving such kinds of problem in Elmer? Thanks, Diana Carlso...
by diana.carlson
04 Jan 2010, 08:59
Forum: ElmerSolver
Topic: Problem with ALE formulation of Navier-Stokes
Replies: 1
Views: 2751

Problem with ALE formulation of Navier-Stokes

Hi there I still have problems with ALE formulation used for solving flow equations in Elmer. Let me explain via an example, (i.e. Tutorial 16: Fluid flow around an elastic beam). The problem is steady-state so the ‘compute mesh velocity’ option is not active and the mesh velocity is zero. So in ‘Na...
by diana.carlson
23 Dec 2009, 18:42
Forum: ElmerSolver
Topic: fluctuating pressure levels
Replies: 0
Views: 2953

fluctuating pressure levels

Hi there I’ll be grateful if somebody gives me some information about the following part of FlowSolve subroutine. A book, paper or any other theoretical reference will be ideal for me. Furthermore, what is LocalNodes? !------------------------------------------------------------------------------ ! ...
by diana.carlson
18 Dec 2009, 19:54
Forum: ElmerSolver
Topic: Perm
Replies: 5
Views: 4347

Re: Perm

So you mean that by setting "Optimize Bandwidth=False" we will have
TempPerm( NodeIndexes ) = NodeIndexes . Am I right?
Thanks, Diana
by diana.carlson
18 Dec 2009, 19:04
Forum: ElmerSolver
Topic: Perm
Replies: 5
Views: 4347

Re: Perm

So if for example, for our linear quadrilateral element we assume NodeIndexes=[11,7,4,8], which one would be right? a or b (just qualitatively)? a) TempPerm( NodeIndexes ) = [4, 7, 11, 8] TempPerm(Indexes(1:nd)) = [4, 7, 11, 8] For i =1 --> TempPerm(NodeIndexes(i)) = 4 ALL( TempPerm(NodeIndexes) > 0...
by diana.carlson
18 Dec 2009, 17:52
Forum: ElmerSolver
Topic: Perm
Replies: 5
Views: 4347

Perm

Hi there I’ll be grateful if somebody gives me some information about the perm variable possibly via an example. I’ve read some about it in Elmer’s documentations but e.g. I can’t understand the following expressions for a quadrilateral element: TempPerm(Indexes(1:nd)) TempPerm( NodeIndexes ) k = Te...
by diana.carlson
17 Dec 2009, 16:20
Forum: ElmerSolver
Topic: DefaultUpdateEquations
Replies: 1
Views: 2300

DefaultUpdateEquations

Hi there
What is the difference and use of DefaultUpdateEquationsC and DefaultUpdateEquationsR? I know that The local matrix is added to the global coefficient matrix of Elmer Solver calling the subroutine DefaultUpdateEquations.

Thanks,
Diana Carlson, NY
by diana.carlson
14 Nov 2009, 22:33
Forum: General
Topic: NodalBasisFunctions1D
Replies: 1
Views: 2771

NodalBasisFunctions1D

Hi there I’m studying the ElementDefinitions module and I have problems interpreting the following formula from the subroutines NodalBasisFunctions1D: s = s + coeff(i) * u ** p(i) Especially I can’t understand the meaning of coeff(i) and p(i). Furthermore, I don’t know if ‘u’ is the point’s coordina...