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solvers:glads [Elmer/Ice Wiki]

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solvers:glads [2018/10/27 18:28]
gag [Examples]
solvers:glads [2019/09/06 13:17] (current)
gagliar [Known bugs]
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 ==== Known bugs ==== ==== Known bugs ====
 If in parallel a moulin belongs to two partitions, the flux from the moulin is taken into account twice. This is may be not a bug, but the partitioning should avoid to have moulins at the boundary of partitions. The python tool ''makemoulin.py'' (in ''[ELMER_TRUNK]/elmerice/Meshers'') take care to have no duplicated moulins on the boundaries of partitions.  If in parallel a moulin belongs to two partitions, the flux from the moulin is taken into account twice. This is may be not a bug, but the partitioning should avoid to have moulins at the boundary of partitions. The python tool ''makemoulin.py'' (in ''[ELMER_TRUNK]/elmerice/Meshers'') take care to have no duplicated moulins on the boundaries of partitions. 
 +
 +If running the solver on a 3d internally extruded mesh, one should specify ''Preserve Edges = True'' and ''Preserve Baseline = True'' in the Simulation section. 
 +
 +If running on a "true" 3d mesh, the ''GlaDSchannelsSolver'' has to be executed on the 3d body (not the bottom surface body as for the two other GlaDS solvers).  
 +
  
  
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   *  ''GlaDSchannelOut'' has two functions: declare that the ''Channel Area'' variable is an edge variable (''Element = "n:0 e:1"'') and create output vtu files for edge variables.    *  ''GlaDSchannelOut'' has two functions: declare that the ''Channel Area'' variable is an edge variable (''Element = "n:0 e:1"'') and create output vtu files for edge variables. 
  
-Since version Version 8.3 (Rev: b213b0c8), ''GlaDSchannelOut'' works for parallel simulation (no more vtk or acscii output, only vtu). These solvers only work in transient. They can be executed either on a 2d plane view mesh defining the bedrock or on the boundary of a 3d mesh. More details about the specificity of the solvers are given below. +Since version Version 8.3 (Rev: b213b0c8), ''GlaDSchannelOut'' works for parallel simulation (no more vtk or acscii output, only vtu). These solvers only work in transient. They can be executed either on a 2d plane view mesh defining the bedrock or on the boundary of a 3d mesh. If using internal extrusion within Elmer see the [[mesh:structuredmesh|structured mesh]] page for essential keywords to preserve baseline and edges.  More details about the specificity of the solvers are given below. 
  
  
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 Usage:  Usage: 
 <code> <code>
-python makempoulin.py --meshdir mesh_dir --moulin moulin_file --partition number_of_partition+python makemoulin.py --meshdir mesh_dir --moulin moulin_file --partition number_of_partition
 </code> </code>
 where ''moulin_file'' is an ascii file which contains the (x,y) coordinates of the moulins. The same file has to be used in gmsh so that nodes with the moulin coordinates already exist.  where ''moulin_file'' is an ascii file which contains the (x,y) coordinates of the moulins. The same file has to be used in gmsh so that nodes with the moulin coordinates already exist. 
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 Examples using the //GlaDS// Solver can be found in ''[ELMER_TRUNK]/elmerice/Tests/''. Examples using the //GlaDS// Solver can be found in ''[ELMER_TRUNK]/elmerice/Tests/''.
  
-==== Reference ====+==== References ====
 The description of the GlaDS model is in:\\ The description of the GlaDS model is in:\\
   * Werder M.A., I.J. Hewitt, C.G. Schoof and G.E. Flowers, 2013. Modeling channelized and distributed subglacial drainage in two dimensions. Journal of Geophysical Research: Earth Surface, 118(4), 2140-2158.\\   * Werder M.A., I.J. Hewitt, C.G. Schoof and G.E. Flowers, 2013. Modeling channelized and distributed subglacial drainage in two dimensions. Journal of Geophysical Research: Earth Surface, 118(4), 2140-2158.\\
solvers/glads.1540664880.txt.gz ยท Last modified: 2018/10/27 18:28 by gag
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