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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: | + | * **Solver Fortran File: |
- | * **Solver Name: | + | * **Solver Name: |
- | * **Required Output Variable(s): | + | * **Required Output Variable(s): |
- | * **Required Input Variable(s): | + | * **Required Input Variable(s): |
* **Optional Output Variable(s): | * **Optional Output Variable(s): | ||
* **Optional Input Variable(s): | * **Optional Input Variable(s): | ||
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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 '' |
The Strain-rate tensor is computed using:\\ | The Strain-rate tensor is computed using:\\ | ||
<m> epsilon_{ij} | <m> epsilon_{ij} | ||
- | + | 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 = " | Equation = " | ||
- | Procedure = "ComputeStrainRate" " | + | Procedure = "ElmerIceSolvers" " |
! 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 = " | Exported Variable 1 = " | ||
- | 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, | ! the name of the variable containing the flow solution (U, | ||
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==== Examples ==== | ==== Examples ==== | ||
- | Download an example using this solver. | + | An example using this solver |
- | ==== 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. |