About some directions in development avation engine buildings


Analysis of the acoustic characteristics of the engines with open rotor and turbofan engines shown what in engine noise with open rotor in addition to traditional component of the noise added tonal noise peaks at combination frequencies in low frequency part spectra. All of this creates many difficulties in the reduction the noise of aircrafts with this engines on the ground. Problem of choise engines for future aviation discussed.

About the authors

B. S. Zamtfort

Scientific research Moscow complex Central Aerohydrodynamic Institute (TsAGI)

Author for correspondence.
Email: bsz@inbox.ru

Russian Federation

Candidate of Science (Engineering)

Senior Scientific Worker, Leading Engineer


  1. Weckmuller, S.C. Guerin German Aerospace Center, Institute of Propulsion Technology. On the influence of trailing-edge serrations on open-rotor tonal noise [Text] / S.C. Weckmuller, AIAA.- 2012.- № 2124.
  2. Bauer, M. EADS. An experimental study on a low noise blade concept for CROR [Text] / M.Bauer, D.Redmann, R.Pontgratz. AIAA – 2012. - № 2126.
  3. Schnell, R. German Aerospace Center, Institute of Propulsion Technology. Aerodynamic and basic acoustic optimization of a contrarotating open rotor with experimental verification [Text] / R. Schnell, J. Yin, S. Funke, H. Siller. AIAA. – 2012. - № 2127.



Abstract - 42

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