Resolve "Rename Parameter "GrainFouriersLaw.UseAdaptedVolumeForPyramid""

dumux/flux/porenetwork/grainfourierslaw.hh

@@ -50,6 +50,9 @@ struct TruncatedPyramidGrainFouriersLaw
 
         auto getPyramidBaseLengthFromVolume = [&](const Scalar v, const Scalar h)
         {
+            // Using the formula for the volume of a pyramid frustum to calculate its base length:
+            // v = 1/3 h * (a^2 + a*b + b^2), where a is the base side length, b the top side length,
+            // h the height and v the volume of the frustum.
             const Scalar b = topSideLength;
             using std::sqrt;
             return 0.5*sqrt(3.0) * sqrt(-(b*b*h-4.0*v)/h) -0.5*b;
@@ -58,7 +61,7 @@ struct TruncatedPyramidGrainFouriersLaw
         // the pyramid base length of the inside pore
         const Scalar insideBaseSideLength = [&]()
         {
-            static const bool useAdaptedVolume = getParamFromGroup<bool>(problem.paramGroup(), "GrainFouriersLaw.UseAdaptedVolumeForPyramid", false);
+            static const bool useAdaptedVolume = getParamFromGroup<bool>(problem.paramGroup(), "Problem.UseVolumeEqualPyramid", false);
 
             if (useAdaptedVolume)
                 return getPyramidBaseLengthFromVolume(0.5*insideVolVars.poreVolume(), insideHeight);
@@ -69,7 +72,7 @@ struct TruncatedPyramidGrainFouriersLaw
         // the pyramid base length of the outside pore
         const Scalar outsideBaseSideLength = [&]()
         {
-            static const bool useAdaptedVolume = getParamFromGroup<bool>(problem.paramGroup(), "GrainFouriersLaw.UseAdaptedVolumeForPyramid", false);
+            static const bool useAdaptedVolume = getParamFromGroup<bool>(problem.paramGroup(), "Problem.UseVolumeEqualPyramid", false);
 
             if (useAdaptedVolume)
                 return getPyramidBaseLengthFromVolume(0.5*outsideVolVars.poreVolume(), outsideHeight);

test/multidomain/dualnetwork/fourierslaw.hh

@@ -103,6 +103,9 @@ struct FluidOrGrainPyramidFouriersLaw
             static const bool realVolume = getParamFromGroup<bool>(problem.paramGroup(), "Problem.UseVolumeEqualPyramid", true);
             if (realVolume)
             {
+                // Using the formula for the volume of a pyramid frustum to calculate its base length and base area:
+                // v = 1/3 h * (a^2 + a*b + b^2), where a is the base side length, b the top side length,
+                // h the height and v the volume of the frustum .
                 using std::sqrt;
                 const Scalar vol = 0.5 * volVars.poreVolume();
                 const Scalar baseLenTop = sqrt(pyramidFrustumTopArea);