PROGRAM IN ACOUSTICS
Relevant research projects conducted by faculty and graduate students in the general area of aeroacoustics to further the understanding of noise generation by aircraft and to aid in the development of practical methods for noise suppression are listed. Special activities summarized relate to the nonlinear acoustic wave theory and its application to several cases including that of the acoustic source located at the throat of a near-sonic duct, a computer program developed to compute the nonlinear wave theory, and a parabolic approximation for propagation of sounding in moving stratified media.
George Washington Transportation Research Institute. Center for Intelligent Systems Research,
- Publication Date: 1979-5-31
- Pagination: 18 p.
- TRT Terms: Acoustic ducts; Acoustics; Aerodynamic noise; Aircraft noise; Computer programs; Ducts; Flow; Jet engines; Noise control; Nonlinear systems; Research projects; Sound transmission; Three dimensional flow; Trailing edges
- Uncontrolled Terms: Noise reduction; Nonlinearity
- Old TRIS Terms: Acoustic propagation; Aeroacoustics; Jet flow; University program
- Subject Areas: Aviation; Research; Vehicles and Equipment;
- Accession Number: 00198883
- Record Type: Publication
- Source Agency: National Technical Information Service
- Report/Paper Numbers: NASA-CR-158660 Final Rpt.
- Contract Numbers: NGR-09-010-064
- Files: TRIS
- Created Date: Oct 17 1980 12:00AM