Source code for RCAIDE.Library.Mission.Common.Update.atmosphere
# RCAIDE/Library/Missions/Common/Update/atmosphere.py
#
#
# Created: Jul 2023, M. Clarke
# ----------------------------------------------------------------------------------------------------------------------
# Update Atmosphere
# ----------------------------------------------------------------------------------------------------------------------
[docs]
def atmosphere(segment):
""" Computes conditions of the atmosphere at given altitudes
Assumptions:
N/A
Inputs:
state.conditions:
freestream.altitude [meters]
segment.analyses.atmoshere [Function]
Outputs:
state.conditions:
freestream.pressure [pascals]
freestream.temperature [kelvin]
freestream.density [kilogram/meter^3]
freestream.speed_of_sound [meter/second]
freestream.dynamic_viscosity [pascals-seconds]
freestream.kinematic_viscosity [meters^2/second]
freestream.thermal_conductivity [Watt/meter-Kelvin]
freestream.prandtl_number [unitless]
Properties Used:
N/A
"""
# unpack
conditions = segment.state.conditions
h = conditions.freestream.altitude
temperature_deviation = segment.temperature_deviation
atmosphere = segment.analyses.atmosphere
# compute
atmosphere_data = atmosphere.compute_values(h,temperature_deviation)
# pack
conditions.freestream.pressure = atmosphere_data.pressure
conditions.freestream.temperature = atmosphere_data.temperature
conditions.freestream.thermal_conductivity = atmosphere_data.thermal_conductivity
conditions.freestream.density = atmosphere_data.density
conditions.freestream.speed_of_sound = atmosphere_data.speed_of_sound
conditions.freestream.dynamic_viscosity = atmosphere_data.dynamic_viscosity
conditions.freestream.kinematic_viscosity = atmosphere_data.kinematic_viscosity
conditions.freestream.prandtl_number = atmosphere_data.prandtl_number
return
