stdatm.speed_parameters module

Functions for computation of atmosphere speed parameters.

stdatm.speed_parameters.compute_tas_from_mach(mach, speed_of_sound)[source]
Parameters
  • mach – no unit

  • speed_of_sound – in m/s

Returns

true airspeed in m/s

stdatm.speed_parameters.compute_tas_from_eas(equivalent_airspeed, density)[source]
Parameters
  • equivalent_airspeed – in m/s

  • density – in kg/m**3

Returns

true airspeed in m/s

stdatm.speed_parameters.compute_tas_from_unit_re(unitary_reynolds, kinematic_viscosity)[source]
Parameters
  • unitary_reynolds – in 1/m

  • kinematic_viscosity – in m**2/s

Returns

true airspeed in m/s

stdatm.speed_parameters.compute_tas_from_pdyn(dynamic_pressure, density)[source]
Parameters
  • dynamic_pressure – in Pa

  • density – in kg/m**3

Returns

true airspeed in m/s

stdatm.speed_parameters.compute_mach(true_airspeed, speed_of_sound)[source]
Parameters
  • true_airspeed – in m/s

  • speed_of_sound – in m/s

Returns

Mach number (no unit)

stdatm.speed_parameters.compute_equivalent_airspeed(true_airspeed, density)[source]
Parameters
  • true_airspeed – in m/s

  • density – in kg/m**3

Returns

equivalent airspeed in m/s

stdatm.speed_parameters.compute_unitary_reynolds(true_airspeed, kinematic_viscosity)[source]
Parameters
  • true_airspeed – in m/s

  • kinematic_viscosity – in m**2/s

Returns

unitary_reynolds in 1/m

stdatm.speed_parameters.compute_dynamic_pressure(true_airspeed, density)[source]
Parameters
  • true_airspeed – in m/s

  • density – in kg/m**3

Returns

incompressible dynamic pressure in Pa

stdatm.speed_parameters.compute_impact_pressure(mach, pressure)[source]
Parameters
  • mach – no unit

  • pressure – in Pa

Returns

impact pressure in Pa

stdatm.speed_parameters.compute_calibrated_airspeed(impact_pressure)[source]
Parameters

impact_pressure – in Pa

Returns

calibrated airspeed in m/s