Experimental and numerical results of sound scattering by a body
Abstract
The interaction of aerodynamic noise with a fuselage shaped body is discussed. A numerical technique is presented which permits the computation of the scattering of an acoustic source by a body at rest for frequencies of aeroacoustic interest. A parallel experiment is described which confirms the results of the computations. A numerical study of varying the geometry of the scattering is presented. In addition, the effect of forward motion on the mean velocity and static pressure profiles in the wake of such a body with a jet exiting from it is simulated. Experimental results are presented and a similarity law is given.
- Publication:
-
In AGARD Special Course on Acoustic Wave Propagation 12 p (SEE N80-14858 05-71
- Pub Date:
- August 1979
- Bibcode:
- 1979scaw.agarU....M
- Keywords:
-
- Acoustic Scattering;
- Aeroacoustics;
- Aerodynamic Noise;
- Fuselages;
- Acoustic Simulation;
- Jet Aircraft Noise;
- Radiation Distribution;
- Wave Equations;
- Wind Tunnel Models;
- Acoustics