[FEM] add material cards for gases

also add electrical conductivity for air and water

src/Mod/Material/CMakeLists.txt

@@ -44,6 +44,8 @@ SOURCE_GROUP("MatLib" FILES ${MaterialLib_Files})
 SET (FluidMaterial_Files
     FluidMaterial/None.FCMat
     FluidMaterial/Air.FCMat
+    FluidMaterial/Argon.FCMat
+    FluidMaterial/Nitrogen.FCMat
     FluidMaterial/Water.FCMat
     FluidMaterial/Readme.md
 )

src/Mod/Material/FluidMaterial/Air.FCMat

@@ -20,3 +20,4 @@ VolumetricThermalExpansionCoefficient = 3.43e-3 m/m/K
 [Electrical]
 RelativePermittivity = 1.00059
 ; at 18°C and 50Hz
+ElectricalConductivity = 1e-12 S/m

src/Mod/Material/FluidMaterial/Argon.FCMat

@@ -0,0 +1,23 @@
+[General]
+Name = Argon
+Description = Argon properties at 20 Degrees Celsius and 1 atm
+MolarMass = 39.95
+Father = Gas
+
+[Fluidic]
+Density = 1.641 kg/m^3
+DynamicViscosity = 22.3e-6 kg/m/s
+; Kinematic Viscosity = Dynamic Viscosity / Density
+KinematicViscosity = 13.59-6 m^2/s
+; PrandtlNumber is a nondimension number for CFD simulation
+PrandtlNumber = 0.7
+
+[Thermal]
+SpecificHeat = 0.520 kJ/kg/K
+ThermalConductivity = 0.018 W/m/K
+; volumetric expansion coeff of ideal gas depends on temperature and pressure
+VolumetricThermalExpansionCoefficient = 3.43e-3 1/K
+
+[Electrical]
+RelativePermittivity = 1.000513
+ElectricalConductivity = 1e-15 S/m

src/Mod/Material/FluidMaterial/Nitrogen.FCMat

@@ -0,0 +1,23 @@
+[General]
+Name = Nitrogen
+Description = Nitrogen properties at 20 Degrees Celsius and 1 atm
+MolarMass = 14.007
+Father = Gas
+
+[Fluidic]
+Density = 1.2506 kg/m^3
+DynamicViscosity = 17.58e-6 kg/m/s
+; Kinematic Viscosity = Dynamic Viscosity / Density
+KinematicViscosity = 14.06e-6 m^2/s
+; PrandtlNumber is a nondimension number for CFD simulation
+PrandtlNumber = 0.7
+
+[Thermal]
+SpecificHeat = 1.04 kJ/kg/K
+ThermalConductivity = 25.83e−3 W/m/K
+; volumetric expansion coeff of ideal gas depends on temperature and pressure
+VolumetricThermalExpansionCoefficient = 3.43e-3 1/K
+
+[Electrical]
+RelativePermittivity = 1.00058
+ElectricalConductivity = 1e-12 S/m

src/Mod/Material/FluidMaterial/Water.FCMat

@@ -22,3 +22,4 @@ VolumetricThermalExpansionCoefficient = 2.07e-4 m/m/K
 [Electrical]
 RelativePermittivity = 80.0
 ; at 20°C and 50Hz
+ElectricalConductivity = 5.5e-6 S/m