.Modelica.Media.IdealGases.Common.SingleGasNasa.thermalConductivityEstimate

Information

This function provides two similar methods for estimating the thermal conductivity of polyatomic gases. The Eucken method (input method == 1) gives good results for low temperatures, but it tends to give an underestimated value of the thermal conductivity (lambda) at higher temperatures.
The Modified Eucken method (input method == 2) gives good results for high-temperatures, but it tends to give an overestimated value of the thermal conductivity (lambda) at low temperatures.

Interface

function thermalConductivityEstimate
  extends Modelica.Icons.Function;
  input Modelica.Media.Interfaces.Types.SpecificHeatCapacity Cp "Constant pressure heat capacity";
  input Modelica.Media.Interfaces.Types.DynamicViscosity eta "Dynamic viscosity";
  input Integer method(min = 1, max = 2) = 1 "1: Eucken Method, 2: Modified Eucken Method";
  input IdealGases.Common.DataRecord data "Ideal gas data";
  output Modelica.Media.Interfaces.Types.ThermalConductivity lambda "Thermal conductivity [W/(m.k)]";
end thermalConductivityEstimate;