stdatm.partials_state_parameters module

Functions for computation of the partial derivative of atmosphere state parameters.

stdatm.partials_state_parameters.compute_partial_temperature(altitude) → numpy.ndarray

Parameters

altitude – in m

Returns

Partial of temperature in K with respect to altitude in m

stdatm.partials_state_parameters.compute_partial_pressure(altitude) → numpy.ndarray

Parameters

altitude – in m

Returns

Partial of pressure in Pa with respect to altitude in m

stdatm.partials_state_parameters.compute_partial_density(temperature: Union[numpy.ndarray, numbers.Real], pressure: Union[numpy.ndarray, numbers.Real], partial_temperature_altitude: Union[numpy.ndarray, numbers.Real], partial_pressure_altitude: Union[numpy.ndarray, numbers.Real]) → Union[numpy.ndarray, numbers.Real]

Parameters

• temperature – in K

• pressure – in Pa

• partial_temperature_altitude – derivative of the temperature in K with respect to the altitude

• partial_pressure_altitude – derivative of the pressure in Pa with respect to the altitude

Returns

Partial of density in kg/m**3 with respect to altitude

stdatm.partials_state_parameters.compute_partial_speed_of_sound(temperature: Union[numpy.ndarray, numbers.Real], partial_temperature_altitude: Union[numpy.ndarray, numbers.Real]) → Union[numpy.ndarray, numbers.Real]

Parameters

• temperature – in K

• partial_temperature_altitude – derivative of the temperature in K with respect to the altitude

Returns

Partial of speed of sound in m/s with respect to altitude

stdatm.partials_state_parameters.compute_partial_dynamic_viscosity(temperature: Union[numpy.ndarray, numbers.Real], partial_temperature_altitude: Union[numpy.ndarray, numbers.Real]) → Union[numpy.ndarray, numbers.Real]

Parameters

• temperature – in K

• partial_temperature_altitude – derivative of the temperature in K with respect to the altitude

Returns

Partial of dynamic viscosity in kg/m/s with respect to altitude

stdatm.partials_state_parameters.compute_partial_kinematic_viscosity(dynamic_viscosity: Union[numpy.ndarray, numbers.Real], density: Union[numpy.ndarray, numbers.Real], partial_dynamic_viscosity_altitude: Union[numpy.ndarray, numbers.Real], partial_density_altitude: Union[numpy.ndarray, numbers.Real]) → Union[numpy.ndarray, numbers.Real]

Parameters

• dynamic_viscosity – in kg/m/s

• density – in kg/m**3

• partial_dynamic_viscosity_altitude – derivative of the dynamic viscosity in kg/m/s with respect to the altitude

• partial_density_altitude – derivative of the density in kg/m**3 with respect to the altitude

Returns

Partial of kinematic viscosity in m**2/s with respect to altitude