Advertisement

Direct Shadow Method Application to Aero-Acoustic Interaction Investigation

  • V. G. Pimschtein
Conference paper

Summary

Some investigation results for interaction process of saw-like sound waves of high intensity (160–170 dB) with axisymmetrical subsonic and supersonic jets are presented. Flow and sound waves visualization was performed by the direct shadowgraph method using an impulse source with exposure duration 2*10-7 s. Peculiarities of disturbance emergence and development in a subsonic air jet and in a helium jet under acoustic excitation are considered. It is shown that large-scale disturbances arise on the acoustically excited side of a supersonic jet and the jet radiates directional sound at the frequency of the external excitation (Mach waves).

Keywords

Sound Wave Nozzle Outlet Vortex Interaction Acoustic Excitation Mach Wave 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Copyright information

© Springer-Verlag Berlin Heidelberg 1992

Authors and Affiliations

  • V. G. Pimschtein
    • 1
  1. 1.Central Aerohydrodynamic Institute (TsAGI)Moscow Branch, MoscowRussia

Personalised recommendations