.ThermofluidStream.Media.myMedia.IdealGases.Common.Functions.thermalConductivityEstimate

Thermal conductivity of polyatomic gases (Eucken and Modified Eucken correlation)

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 ThermofluidStream.Media.myMedia.Interfaces.Types.SpecificHeatCapacity Cp "Constant pressure heat capacity";
  input ThermofluidStream.Media.myMedia.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 ThermofluidStream.Media.myMedia.Interfaces.Types.ThermalConductivity lambda "Thermal conductivity [W/(m.k)]";
end thermalConductivityEstimate;

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