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solvers:strainrate [Elmer/Ice Wiki]

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solvers:strainrate [2012/11/20 05:31]
gag [SIF contents]
solvers:strainrate [2014/08/29 15:49] (current)
mschafer [SIF contents]
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 ==== General Informations ==== ==== General Informations ====
-  * **Solver Fortran File:** //ComputeStrainRate.f90// +  * **Solver Fortran File:** ''ComputeStrainRate.f90'' 
-  * **Solver Name:** //ComputeStrainRate//  +  * **Solver Name:** ''ComputeStrainRate'' 
-  * **Required Output Variable(s):** default is //StrainRate// (else in //StrainRate Variable Name//)   +  * **Required Output Variable(s):** default is ''StrainRate'' (else in ''StrainRate Variable Name'')   
-  * **Required Input Variable(s):** A //Flow Solution// (in //Flow Solution Name//)+  * **Required Input Variable(s):** A ''Flow Solution'' (in ''Flow Solution Name'')
   * **Optional Output Variable(s):** None     * **Optional Output Variable(s):** None  
   * **Optional Input Variable(s):** None   * **Optional Input Variable(s):** None
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 ==== General Description ==== ==== General Description ====
-The aim of this solver is to compute the strain-rate tensor from the flow solution. For a 2D simulation there are 5 DOFs (E11, E22, E33, E12, Eii) and for a 3D simulation, 2 additional (7 DOFs) are being solved for (E11, E22, E33, E12, E23, E31, Eii). This solver uses a dummy variable and solves 5 (7 in 3D) times a 1 DOF system for each strain-rate components and the trace of the strain-rate tensor (Eii). +The aim of this solver is to compute the strain-rate tensor from the flow solution. For a 2D simulation there are 5 DOFs ''(E11, E22, E33, E12, Eii)'' and for a 3D simulation, 2 additional (7 DOFs) are being solved for ''(E11, E22, E33, E12, E23, E31, Eii)''. This solver uses a dummy variable and solves 5 (7 in 3D) times a 1 DOF system for each strain-rate components and the trace of the strain-rate tensor ''(Eii)''
  
 The Strain-rate tensor is computed using:\\ The Strain-rate tensor is computed using:\\
 <m> epsilon_{ij}  =  {1/2} ({u_{i,j} + u_{j,i}}) </m> \\ <m> epsilon_{ij}  =  {1/2} ({u_{i,j} + u_{j,i}}) </m> \\
- +where <m> u </m> is the velocity vector solution of the Stokes problem.
  
 ==== SIF contents ==== ==== SIF contents ====
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 Solver 1 Solver 1
   Equation = "Strain Rate"   Equation = "Strain Rate"
-  Procedure = "ComputeStrainRate" "ComputeStrainRate"+  Procedure = "ElmerIceSolvers" "ComputeStrainRate"
 ! this is just a dummy, hence no output is needed ! this is just a dummy, hence no output is needed
 !-----------------------------------------------------------------------   !-----------------------------------------------------------------------  
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   Exported Variable 1 = "StrainRate"   Exported Variable 1 = "StrainRate"
-  Exported Variable 1 DOFs = 5+  Exported Variable 1 DOFs = 5 !in 2D, 7 in 3D
  
 ! the name of the variable containing the flow solution (U,V,W,Pressure) ! the name of the variable containing the flow solution (U,V,W,Pressure)
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 ==== Examples ==== ==== Examples ====
-Download an example using this solver. TODO+An example using this solver can be found in ''[ELMER_TRUNK]/elmerice/examples/Test_StrainRate''. 
  
-==== Reference ==== 
-When used this solver can be cited using the following references:\\ 
-Gagliardini O., D. Cohen, P. Råback and T. Zwinger, 2007. Finite-Element Modeling of Subglacial Cavities and Related Friction Law. J. of Geophys. Res.,  Earth Surface, 112, F02027. 
solvers/strainrate.1353389498.txt.gz · Last modified: 2012/11/20 05:31 by gag
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