To develop jet noise-reduction concepts, it is necessary to understand the physics
underlying the noise-generation process. Decomposition of the sound field into azimuthal …

An experimental study of the azimuthal modes of the sound field generated by a single-
stream round jet installed near a flat plate is presented. The investigation is conducted at …

The main goal of the paper is to assess the contribution of large-scale vortices to the noise of
the subsonic turbulent jet (M= 0.35, Re= 3.2· 105) in the selected frequency bands (Sh∼ 0.2 …

It is generally accepted that one of the main sources of acoustic radiation from a supersonic
jet is due to spatial instability wave packets propagating downstream within the jet. This …

Linear stability theory has been intensively used over the past decades for the
characterization of unsteady flow behaviors. While the existing approaches are numerous …

Рассмотрен механизм генерации шума турбулентными струями, связанный с каскадом
турбулентных возмущений от рождения первичных вихрей до их распада. Для …

The results of a detailed study of the structure of the sound field of a subsonic turbulent jet
are presented. The experimental data obtained by the azimuthal decomposition technique …

Представлено подробное исследование структуры звукового поля дозвуковой
турбулентной струи. Для анализа используются экспериментальные данные …

The problem of aerodynamic sound generation by a transverse turbulent flow past a rigid
cylinder is considered. An anomalous displacement of the equivalent dipole source to a …

In the present paper, we use approach based on the azimuthal decomposition technique
(ADT) of far sound field by microphones array, moving by small steps along jet axis. The …