stdatm.state_parameters module

Functions for computation of atmosphere state parameters.

stdatm.state_parameters.compute_temperature(altitude, delta_t) → numpy.ndarray

Parameters

• altitude – in m

• delta_t – in K

Returns

Temperature in K

stdatm.state_parameters.compute_pressure(altitude) → numpy.ndarray

Parameters

altitude – in m

Returns

pressure in Pa

stdatm.state_parameters.compute_density(pressure: Union[numpy.ndarray, numbers.Real], temperature: Union[numpy.ndarray, numbers.Real]) → Union[numpy.ndarray, numbers.Real]

Parameters

• pressure – in Pa

• temperature – in K

Returns

air density in kg/m**3

stdatm.state_parameters.compute_speed_of_sound(temperature: Union[numpy.ndarray, numbers.Real]) → Union[numpy.ndarray, numbers.Real]

Parameters

temperature – in K

Returns

in m/s

stdatm.state_parameters.compute_dynamic_viscosity(temperature: Union[numpy.ndarray, numbers.Real]) → Union[numpy.ndarray, numbers.Real]

Parameters

temperature – in K

Returns

in kg/m/s

stdatm.state_parameters.compute_kinematic_viscosity(dynamic_viscosity: Union[numpy.ndarray, numbers.Real], density: Union[numpy.ndarray, numbers.Real]) → Union[numpy.ndarray, numbers.Real]

Parameters

• dynamic_viscosity – in kg/m/s

• density – in kg/m**3

Returns

in m**2/s