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~~NOTOC~~
===== DeformationalHeat Solver =====

==== General Informations ====
  * **Solver Fortran File:** ''DeformationalHeat.f90''
  * **Solver Name:** ''DeformationalHeatSolver'' 
  * **Required Output Variable(s):** ''W'' (User Defined)
  * **Required Input Variable(s):** Default ''Flow Solution'' (else in ''Flow Solver Name'')
  * **Optional Output Variable(s):** None  
  * **Optional Input Variable(s):** None


==== General Description ====
This solver computes the volumetric heat produced by ice flow deformation.  


==== SIF contents ====
This solver produces the volumetric heat source due to ice deformation (strain heating). This can be directly used within the TemperateIceSolver using the body-force keyword ''Temp Volume Source'' (provided your temperature variable is called ''Temp''. Important: Do not use that as a ''Heat Source'' for the regular HeatSolve (it would need a specific heat source).

The required keywords in the SIF file for this solver are:
<code>
Solver 3
  Equation = DeformationalHeat
  Variable = W
  Variable DOFs = 1

  procedure =  "ElmerIceSolvers" "DeformationalHeatSolver"

  Linear System Solver = direct
  Linear System direct Method = umfpack
  
  Flow Solver Name = String 'Flow Solution'
End

! This would be the correct source for TemperateIceSolver
! with variable name Temp
Body Force 1
   Temp Volume Source = Equals W
End
</code>

==== Example ====
A test using the ''DeformationalHeat'' solver can be found in ''[ELMER_TRUNK]/elmerice/Tests/Teterousse_DeformHeat''.