From f39db82c00d2d2d33572745bc61990a03a9262af Mon Sep 17 00:00:00 2001
From: Florian Zill <florian.zill@ufz.de>
Date: Wed, 29 Jan 2020 17:28:58 +0100
Subject: [PATCH] [HM] removed specific gas constant

not needed anymore
---
 .../HydroMechanics/CreateHydroMechanicsProcess.cpp       | 9 +--------
 ProcessLib/HydroMechanics/HydroMechanicsProcessData.h    | 4 ----
 2 files changed, 1 insertion(+), 12 deletions(-)

diff --git a/ProcessLib/HydroMechanics/CreateHydroMechanicsProcess.cpp b/ProcessLib/HydroMechanics/CreateHydroMechanicsProcess.cpp
index 2a5b33ecb18..240f0593744 100644
--- a/ProcessLib/HydroMechanics/CreateHydroMechanicsProcess.cpp
+++ b/ProcessLib/HydroMechanics/CreateHydroMechanicsProcess.cpp
@@ -162,12 +162,6 @@ std::unique_ptr<Process> createHydroMechanicsProcess(
             "reference_temperature", std::numeric_limits<double>::quiet_NaN());
     DBUG("Use 'reference_temperature' as reference temperature.");
 
-    //Specific gas constant
-    double const specific_gas_constant =
-        //! \ogs_file_param{prj__processes__process__HYDRO_MECHANICS__specific_gas_constant}
-        config.getConfigParameter<double>(
-            "specific_gas_constant", std::numeric_limits<double>::quiet_NaN());
-    DBUG("Use 'specific_gas_constant' as specific gas constant.");
 
     auto const fluid_type =
         FluidType::strToFluidType(
@@ -186,8 +180,7 @@ std::unique_ptr<Process> createHydroMechanicsProcess(
         materialIDs(mesh),     std::move(media_map),
         std::move(solid_constitutive_relations),
         initial_stress,        specific_body_force,
-        reference_temperature, specific_gas_constant,
-        fluid_type};
+        reference_temperature, fluid_type};
 
     SecondaryVariableCollection secondary_variables;
 
diff --git a/ProcessLib/HydroMechanics/HydroMechanicsProcessData.h b/ProcessLib/HydroMechanics/HydroMechanicsProcessData.h
index af8a6fab75d..3eb53cb5d7f 100644
--- a/ProcessLib/HydroMechanics/HydroMechanicsProcessData.h
+++ b/ProcessLib/HydroMechanics/HydroMechanicsProcessData.h
@@ -61,10 +61,6 @@ struct HydroMechanicsProcessData
     double const reference_temperature =
         std::numeric_limits<double>::quiet_NaN();
 
-    /// Specific gas constant. A scalar quantity.
-    /// Only used for ideal_gas fluid_type
-    double const specific_gas_constant =
-        std::numeric_limits<double>::quiet_NaN();
 
     /// Fluid type. Enumerator with possible values:
     /// incompressible_fluid, compressible_fluid, ideal_gas
-- 
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