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Warning: Undefined array key "media" in /home/np29546/public_html/elmerice/wiki/feed.php on line 397 Elmer/Ice Wiki mesh
http://elmerfem.org/elmerice/wiki/
2024-07-03T11:23:00+00:00Elmer/Ice Wiki
http://elmerfem.org/elmerice/wiki/
http://elmerfem.org/elmerice/wiki/lib/tpl/arctic/images/favicon.icotext/html2012-11-20T06:02:13+00:00Anonymous (anonymous@undisclosed.example.com)mesh:elmerdem
http://elmerfem.org/elmerice/wiki/doku.php?id=mesh:elmerdem&rev=1353391333&do=diff
ElmerDEM
General Informations
* Name of the source code file: ElmerDEM.c
Purpose
Creates a (horizontally stair-stepped) mesh from a given Digital Elevation Model (DEM) that can contain a bedrock, surface as well as a thickness DEM (where one is redundant if all three are provided).
The purpose of this c program is similar totext/html2014-11-25T22:42:53+00:00Anonymous (anonymous@undisclosed.example.com)mesh:extrudemesh
http://elmerfem.org/elmerice/wiki/doku.php?id=mesh:extrudemesh&rev=1416955373&do=diff
Extrude Mesh
General Informations
* Name of the source code file: ExtrudeMesh.c
* This page is about extrusion external to Elmer. For internal extrusion, see the Structured Mesh page
Purpose
Extrusion and optionally interpolation using a DEM (Digital Elevation Model) of a 2-dimensional footprint mesh into a 3-dimensional. The numbering of boundaries is according to the footprint with an offset introduced by all new boundaries on the bedrock (lowest numbers) and the free surface. If inte…text/html2013-11-08T12:15:14+00:00Anonymous (anonymous@undisclosed.example.com)mesh:gmsh
http://elmerfem.org/elmerice/wiki/doku.php?id=mesh:gmsh&rev=1383912914&do=diff
GMSH
GMSH is a a three-dimensional finite element mesh generator developed by Christophe Geuzaine and Jean-François Remacle. For a given contour, GMSH can be used to generate an unstructured mesh of the footprint, based on triangular elements. This footprint can then be extruded usingtext/html2018-03-06T16:08:39+00:00Anonymous (anonymous@undisclosed.example.com)mesh:meshadaptation
http://elmerfem.org/elmerice/wiki/doku.php?id=mesh:meshadaptation&rev=1520352519&do=diff
Mesh Adaptation (2D)
This page describes how to use the tools dedicated to mesh adaptation using the Mmg remeshing library (<http://www.mmgtools.org/>).
Currently the solvers are compatible with version 5.2.6 (<https://github.com/MmgTools/mmg/releases>)
Since elmerice rev. f6873f2(6/03/2018) compatibility is with MMG 5.3.10 (text/html2014-03-26T10:37:21+00:00Anonymous (anonymous@undisclosed.example.com)mesh:mshdem
http://elmerfem.org/elmerice/wiki/doku.php?id=mesh:mshdem&rev=1395830241&do=diff
Tool MshGlacierDEM
* Source Fortran File: MshGlacierDEM.f90
NEW: since version 6626, works for parallel meshes (Warning, the mesh_input.dat has to be modified, also for serial mesh)
This tool deforms vertically a 1m thick 3D mesh to conform with the bedrock and surface elevations given as DEMs. Informations (name and grid definition) of the bedrock and surface DEMs are given is the filetext/html2013-11-26T10:07:09+00:00Anonymous (anonymous@undisclosed.example.com)mesh:mshglacier2d
http://elmerfem.org/elmerice/wiki/doku.php?id=mesh:mshglacier2d&rev=1385460429&do=diff
Tool MshGlacier
* Source Fortran File: MshGlacier.f90
This tool deforms vertically and horizontally a 1m x 1m square mesh to conform with the bedrock and surface elevations given as data points. One has first to create a square 1m x 1m Elmer mesh (text/html2013-11-26T10:08:43+00:00Anonymous (anonymous@undisclosed.example.com)mesh:mshsynthetic
http://elmerfem.org/elmerice/wiki/doku.php?id=mesh:mshsynthetic&rev=1385460523&do=diff
Tool MshGlacierSynthetic
* Source Fortran File: MshGlacierSynthetic.f90
This tool deforms vertically a 1m thick 2D or 3D mesh to conform with the bedrock and surface elevations given as two analytical expression in fbed.f90 and fsurf.f90, respectively. These fortran functions are of the form:text/html2017-07-18T13:36:33+00:00Anonymous (anonymous@undisclosed.example.com)mesh:sidebar
http://elmerfem.org/elmerice/wiki/doku.php?id=mesh:sidebar&rev=1500384993&do=diff
* Mesh Generation
* MshGlacier (2D)
* Extrude Mesh
* MshGlacierDEM (3D)
* MshGlacierSynthetic
* GMSH
* Structured Mesh
* Mesh Adptation (2D)text/html2019-08-30T07:41:38+00:00Anonymous (anonymous@undisclosed.example.com)mesh:structuredmesh
http://elmerfem.org/elmerice/wiki/doku.php?id=mesh:structuredmesh&rev=1567150898&do=diff
Structured Mesh Specificities
This page describes how to use special tools dedicated to Structured Meshes and the internal mesh extrusion to create such a structured mesh within a simulation. Examples using some of these features can be found in thetext/html2012-11-27T05:19:21+00:00Anonymous (anonymous@undisclosed.example.com)mesh:yams
http://elmerfem.org/elmerice/wiki/doku.php?id=mesh:yams&rev=1353993561&do=diff
YAMS
The fully automatic adaptive isotropic surface remeshing tool YAMS developed by Pascal Frey (<http://www.ann.jussieu.fr/frey/software.html>) is used to build unstructured mesh in the horizontal plane with element size controlled by some metrics (Hessian of the observed horizontal velocity, distance to the grounding line,