thickness noise

thickness noise

[′thik·nəs ‚nȯiz]
(acoustics)
The component of propeller noise that is caused by the displacement of the air by the rotating propeller blade.
References in periodicals archive ?
A brief description will be given later to explain that the loading noise generated by dipole source is much bigger than the thickness noise generated by the monopole source for the tail rotor.
Figures 11 and 12 are the directivity of SPLs of the thickness noise and the loading noise, respectively.
Caption: Figure 11: Directivity of SPLs of the thickness noise at different distance.