RCAIDE.Library.Methods.Aeroacoustics.Semi_Empirical.Turbofan.noise_source_location.noise_source_location#

noise_source_location(B, Xo, zk, Diameter_primary, theta_p, Area_primary, Area_secondary, distance_microphone, Diameter_secondary, theta, theta_s, theta_m, Diameter_mixed, Velocity_primary, Velocity_secondary, Velocity_mixed, Velocity_aircraft, sound_ambient, Str_m, Str_s)[source]#

This function calculates the noise source location for primary, secondary, and mixed jet components.

Parameters:

  • B (array_like) – Array for storing intermediate calculations.

  • Xo (float) – Initial position offset.

  • zk (float) – Scaling factor for jet source location.

  • Diameter_primary (float) – Diameter of the primary jet [m].

  • theta_p (array_like) – Angles for the primary jet [rad].

  • Area_primary (float) – Area of the primary jet [m^2].

  • Area_secondary (float) – Area of the secondary jet [m^2].

  • distance_microphone (float) – Distance from the noise source to the microphone [m].

  • Diameter_secondary (float) – Diameter of the secondary jet [m].

  • theta (float) – General angle used in calculations [rad].

  • theta_s (array_like) – Angles for the secondary jet [rad].

  • theta_m (array_like) – Angles for the mixed jet [rad].

  • Diameter_mixed (float) – Diameter of the mixed jet [m].

  • Velocity_primary (float) – Velocity of the primary jet [m/s].

  • Velocity_secondary (float) – Velocity of the secondary jet [m/s].

  • Velocity_mixed (float) – Velocity of the mixed jet [m/s].

  • Velocity_aircraft (float) – Velocity of the aircraft [m/s].

  • sound_ambient (float) – Ambient sound level [dB].

  • Str_m (array_like) – Strouhal number for the mixed jet.

  • Str_s (array_like) – Strouhal number for the secondary jet.

Returns:

source_location –

Contains the calculated angles for each jet component.
  • theta_parray_like

    Angles for the primary jet [rad].

  • theta_sarray_like

    Angles for the secondary jet [rad].

  • theta_marray_like

    Angles for the mixed jet [rad].

Return type:

Data

Notes

The function iteratively calculates the source location for each jet component by adjusting angles and positions based on geometric and velocity parameters.

Definitions

‘theta_p’, ‘theta_s’, ‘theta_m’

Angles for the primary, secondary, and mixed jet components, respectively.

References

None