armi.materials.air module¶
Simple air material
- class armi.materials.air.Air[source]¶
Bases:
armi.materials.material.FluidDry, Near Sea Level
Correlations based off of values in Incropera, Frank P., et al. Fundamentals of heat and mass transfer. Vol. 5. New York: Wiley, 2002.
- Elemental composition from PNNL-15870 Rev. 1
https://www.pnnl.gov/main/publications/external/technical_reports/PNNL-15870Rev1.pdf
- name = 'Air'¶
temperature ranges based on where values are more than 1% off of reference
- propertyValidTemperature = {'heat capacity': ((100, 1300), 'K'), 'pseudoDensity': ((100, 2400), 'K'), 'thermal conductivity': ((200, 850), 'K')}¶
Dictionary of valid temperatures over which the property models are valid in the format ‘Property Name’: ((Temperature_Lower_Limit, Temperature_Upper_Limit), Temperature_Units)
- setDefaultMassFracs()[source]¶
Set mass fractions
Notes
Mass fraction reference McConn, Ronald J., et al. Compendium of material composition data for radiation transport modeling. No. PNNL-15870 Rev. 1. Pacific Northwest National Lab.(PNNL), Richland, WA (United States), 2011.
https://www.pnnl.gov/main/publications/external/technical_reports/PNNL-15870Rev1.pdf
- pseudoDensity(Tk=None, Tc=None)[source]¶
Returns density of Air in g/cc.
This is from Table A.4 in Fundamentals of Heat and Mass Transfer Incropera, DeWitt
- Parameters
Notes
In ARMI, we define pseudoDensity() and density() as the same for Fluids.
- Returns
density – mass density in g/cc
- Return type
- specificVolumeLiquid(Tk=None, Tc=None)[source]¶
Returns the liquid specific volume in m^3/kg of this material given Tk in K or Tc in C.
- thermalConductivity(Tk=None, Tc=None)[source]¶
Returns thermal conductivity of Air in g/cc.
This is from Table A.4 in Fundamentals of Heat and Mass Transfer Incropera, DeWitt