This paper is focused on the study of a kinematic wavepacket model for jet noise based on
two-point statistics. The model contains physical parameters that define its structure in terms …

The acoustic parameters of a new anechoic chamber constructed at Perm National
Research Polytechnic University (PNRPU) are presented. This chamber is designed to be …

Представлены акустические характеристики новой заглушенной камеры Пермского
национального исследовательского политехнического университета (ПНИПУ) …

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 …

In the modeling of the noise sources in turbulent jets two open questions are still remain.
The first, what is the multipole type of the sources? The second, what kind of stochastic fields …

The theory of stochastic equations and the theory of equivalence of measures previously
applied to flows in the boundary layer and in the pipe are considered to calculate the …

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 …

Исследуется возможность управления волнами неустойчивости в слое смешения
дозвуковой невозбужденной струи. Эти волны могут являться источниками шума как в …

The article presents the results from a study adapting the Geometrical Theory of Diffraction to
the problem of calculating the diffraction of sound radiated from a circular cylindrical duct on …

Instability waves developing in the mixing layer of a turbulent jet are in many cases sources
of noise generation (high-speed jets, jets near an aircraft wing, etc.). This study …