Laboratory for Noise Generation Mechanisms and Modal Analysis
This laboratory was established as part of a scientific research project supported with a monetary grant awarded by the Government of the Russian Federation under a grant competition designed to provide governmental support to scientific research projects implemented under the supervision of the world's leading scientists at Russian institutions of higher learning (Resolution of the RF Government No.220 of April 9, 2010).
Grant Agreement No.:
Name of the institution of higher learning:
Perm National Research Polytechnic University
Fields of scientific research:
To develop highly effective sound-absorbing structures made of composite materials for aircraft engines.
Project progress to date:
The project team is building a soundproof chamber to conduct experiments required to investigate noise generation mechanisms such as the ones, for example, that are associated with such phenomena as ring vortex*, subsonic stream, solid bodies within subsonic streams, etc. The scientist will test methods designed to determine the modal composition of noise, particularly, the kind of noise emitted from the air intake vents into the forward hemisphere. To that end, the scientists will build an experimental piece of equipment and determine the optimal position of microphones within the circular grid.
Significant progress has been made in the following:
• Designing a method of measuring the aeroacoustic parameters of turbulent sources in free space and in the presence of a hard wall;
• Designing a method of measuring the modal composition of the sound field emitted from a channel;
• Designing the "beam-forming" method as applied to aeroacoustic objectives in laboratory conditions;
• Designing machinery generating ring vortexes;
• Designing a method of numerical modeling of the process of ring vortex formation.
Full Name: Kop'ev Viktor Feliksovich
Link to the scientist's profile
Academic degree and title:
Doctoral degree in Physics and Mathematics, Professor
The leading scientist is the head of the Department of Aeroacoustics at the Central Institute for Aerohydrodynamics named after Professor N. E. Zhukovsky.
Fields of scientific interests:
• The leading scientist is Russia's leading specialist in the field of aeroacoustics who has enriched the science with very important works on the flow mechanics of condensing environments. He created a new research field in aeroacoustics that is based on profound theoretical research in noise generation mechanisms and unique physical experiments with localized vortexes, subsonic and supersonic streams, and separation flows.
He organized and conducted unique experiments in the field of acoustics and nonstationary dynamics of localized streams at the Central Institute for Aerohydrodynamics named after Professor N. E. Zhukovsky. He also designed new experimental methods of researching turbulent stream noise based on multichannel synchronous measurements. The outcomes of this research and an analysis of azimuthal components of noise made it possible to identify new emission peculiarities, including those in well-researched situations related to the entire scope of problems in aeroacoustics. Viktor Kopyev participated and supervised procurement of new fundamental results in the theory of noise-formation by localized vortexes, resonant and non-resonant dissipation of sound in vortex structures, and the theory of vortex stability in condensing gas.