COESA Atmosphere Model
1976 COESA atmospheric model.
Description
The COESA Atmosphere Model block defines the 1976 COESA (Committee on Extension to the Standard Atmosphere) US standard atmosphere model: generates temperature, pressure, density and sound speed values for a given geopotential altitude .
Up to 32000 m, the US Standard Atmosphere model corresponds to the ISA International Standard Atmosphere model.
The COESA Atmosphere Model unit operates in SI units.
Limitations
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Below 0 m altitude and above 84852 m altitude, temperature values are calculated using linear extrapolation, pressure values are calculated using logarithmic extrapolation.
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Density and speed of sound are calculated using the ideal gas equation.
Ports
Output
T (K) - temperature
scalar | vector
Temperature, K.
Data types: Float64.
a (m/s) - speed of sound
scalar | vector
Speed of sound, m/s.
Data types: Float64.
P (Pa) - pressure
scalar | vector
Pressure, Pa.
Data types: Float64.
ρ (kg/m3) - air density
scalar | vector
Density of air, kg/m³.
Data types: Float64.