Application of ray acoustics to the propagation of sound in ducts containing sheared flows
| dc.contributor.author | Grimm, Denny Warren | en |
| dc.contributor.department | Mechanical Engineering | en |
| dc.date.accessioned | 2016-02-01T18:05:35Z | en |
| dc.date.available | 2016-02-01T18:05:35Z | en |
| dc.date.issued | 1972 | en |
| dc.description.abstract | Ray acoustics has been applied to the propagation of sound waves in a homogeneous moving medium with sheared flow bounded by the hard walls of a duct. Differential equations describing the ray trajectories and spreading losses along each ray were developed and solved numerically for a range of centerline Mach numbers and shear boundary-layers. Results were obtained which show the effects of upstream and downstream sound propagation on the ray paths. A method was also presented which allows the calculation of intensity loss profiles at specified cross-sections of the duct. | en |
| dc.description.degree | Master of Science | en |
| dc.format.extent | vii, 70 leaves | en |
| dc.format.mimetype | application/pdf | en |
| dc.identifier.uri | http://hdl.handle.net/10919/64686 | en |
| dc.language.iso | en | en |
| dc.publisher | Virginia Polytechnic Institute and State University | en |
| dc.relation.isformatof | OCLC# 34065908 | en |
| dc.rights | In Copyright | en |
| dc.rights.uri | http://rightsstatements.org/vocab/InC/1.0/ | en |
| dc.subject.lcc | LD5655.V855 1972.G765 | en |
| dc.title | Application of ray acoustics to the propagation of sound in ducts containing sheared flows | en |
| dc.type | Thesis | en |
| dc.type.dcmitype | Text | en |
| thesis.degree.discipline | Mechanical Engineering | en |
| thesis.degree.grantor | Virginia Polytechnic Institute and State University | en |
| thesis.degree.level | masters | en |
| thesis.degree.name | Master of Science | en |
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