Geothermal Gradient for Single Phase flow

[npillardou]

The purpose of this PR is to add the geothermal gradient capacities for single-phase flow.

At the moment the temperature VS Elevation is correlated with the composition VS Elevation, maybe this point could be extended to something that is independent of the composition:

<HydrostaticEquilibrium
  name="Initialisation"
  datumElevation="-3790"
  datumPressure="4.3e7"
  objectPath="ElementRegions"
  initialPhaseName="water"
  componentNames="{ co2, water }"
  componentFractionVsElevationTableNames="{ CO2VD, H2OVD }"
  temperatureVsElevationTableName="initTempTable" />  

Further work is needed to account for composition in the hydrostatic pressure kernel, as it is done in CompositionalMultiphaseFlow.

[codecov]

Codecov Report

Attention: Patch coverage is 54.54545% with 5 lines in your changes missing coverage. Please review.

Project coverage is 55.77%. Comparing base (f05008b) to head (e0ff166).

Files	Patch %	Lines
...nents/physicsSolvers/fluidFlow/SinglePhaseBase.cpp	54.54%	5 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #3193      +/-   ##
===========================================
- Coverage    55.77%   55.77%   -0.01%     
===========================================
  Files         1035     1035              
  Lines        87914    87924      +10     
===========================================
+ Hits         49035    49040       +5     
- Misses       38879    38884       +5     

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[paveltomin]

this should be used in HydrostaticPressureKernel, no? i mean let's say density formally depends on temperature, then temperature should be used there

[npillardou]

Yes I agree with you, we should modify the kernel into something like:

HydrostaticPressureKernel::launch( numPointsInTable,
maxNumEquilIterations,
equilTolerance,
gravVector,
minElevation,
elevationIncrement,
datumElevation,
datumPressure,
fluidWrapper,
tempTableWrapper,
elevationValues.toNestedView(),
pressureValues.toView() );

But behind that, it requires further developments in the constitutive also

[paveltomin]

But behind that, it requires further developments in the constitutive also

can you elaborate?