[Unsat] Added a description for a class member and removed an unused argument

MaterialLib/PorousMedium/UnsaturatedProperty/CapillaryPressure/BrookCoreyCapillaryPressureSaturation.h

@@ -82,6 +82,12 @@ private:
     const double _mm;      ///< Exponent (<=1.0), n=1/(1-mm).
     const double _Pc_max;  ///< Maximum capillaray pressure
 
+    /** A small number for an offset:
+     *  1. to set the bound of S, the saturation, such that
+     *     S in  [_Sr+_minor_offset, _Smax-_minor_offset]
+     *  2. to set the bound of Pc, the capillary pressure, such that
+     *     Pc in [_minor_offset, _Pc_max]
+     */
     const double _minor_offset = std::numeric_limits<double>::epsilon();
 };
 

MaterialLib/PorousMedium/UnsaturatedProperty/CapillaryPressure/CreateCapillaryPressureModel.cpp

@@ -31,8 +31,7 @@ namespace PorousMedium
                   and it has a tag of <capillary_pressure>
 */
 static std::unique_ptr<CapillaryPressureSaturation>
-                         createBrookCorey(BaseLib::ConfigTree const& config,
-                                          const bool is_brook_corey)
+                         createBrookCorey(BaseLib::ConfigTree const& config)
 {
     std::array<double, 5> parameters = {
         {//! \ogs_file_param{material_property__porous_medium__porous_medium__capillary_pressure__type__pd}
@@ -57,8 +56,7 @@ static std::unique_ptr<CapillaryPressureSaturation>
                   and it has a tag of <capillary_pressure>
 */
 static std::unique_ptr<CapillaryPressureSaturation>
-                         createVanGenuchten(BaseLib::ConfigTree const& config,
-                                            const bool is_brook_corey)
+                         createVanGenuchten(BaseLib::ConfigTree const& config)
 {
     std::array<double, 5> parameters = {
         {//! \ogs_file_param{material_property__porous_medium__porous_medium__capillary_pressure__type__pd}
@@ -85,13 +83,11 @@ std::unique_ptr<CapillaryPressureSaturation> createCapillaryPressureModel(
 
     if (type == "BrookCorey")
     {
-        const bool brook_corey = true;
-        return createBrookCorey(config, brook_corey);
+        return createBrookCorey(config);
     }
     else if (type == "vanGenuchten")
     {
-        const bool brook_corey = false;
-        return createVanGenuchten(config, brook_corey);
+        return createVanGenuchten(config);
     }
     else
     {

MaterialLib/PorousMedium/UnsaturatedProperty/CapillaryPressure/vanGenuchtenCapillaryPressureSaturation.h

@@ -87,6 +87,12 @@ private:
     const double _mm;      ///< Exponent (<=1.0), n=1/(1-mm).
     const double _Pc_max;  ///< Maximum capillaray pressure
 
+    /** A small number for an offset:
+     *  1. to set the bound of S, the saturation, such that
+     *     S in  [_Sr+_minor_offset, _Smax-_minor_offset]
+     *  2. to set the bound of Pc, the capillary pressure, such that
+     *     Pc in [_minor_offset, _Pc_max]
+     */
     const double _minor_offset = std::numeric_limits<double>::epsilon();
 };