We show how the gas properties, gas constant, specific heat, enthalpy and entropy function for a half-ideal gas, are derived from basic thermodynamics. GasTurb reads gas properties from tables calculated with the NASA program CEA. Environmental conditions are defined by the International Standard Atmosphere (ISA), which derives ambient pressure and temperature from the altitude.

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Gas Properties and Standard Atmosphere

  • Joachim Kurzke,
  • Ian Halliwell,
  • Robert Hill

摘要

We show how the gas properties, gas constant, specific heat, enthalpy and entropy function for a half-ideal gas, are derived from basic thermodynamics. GasTurb reads gas properties from tables calculated with the NASA program CEA. Environmental conditions are defined by the International Standard Atmosphere (ISA), which derives ambient pressure and temperature from the altitude.