Published March 1978
| Version Submitted
Technical Report
Open
Measurements of Energy Losses Associated with Interactions Between Acoustic Waves and a Steady Flow Field
Creators
Abstract
An experimental program has been conducted to study interactions between acoustic waves and non-uniform flow fields. Data have been taken in an impedance tube, modified to accommodate an average flow, and in a resonance tube. Results are given for the influence of flow through a subsonic exhaust vent on an acoustic field. Measurements for circular and slot vents of several sizes and for two frequencies show that the flow through the vent causes a transfer of energy from the average flow field to the acoustic field: The vent acts as a source or gain of acoustic energy.
Additional Information
© 1978 California Institute of Technology. AFRPL-TR-78-6. Final Report for Period 16 March 1976- 15 November 1977. This report was submitted by Daniel and Florence Guggenheim Jet Propulsion Center, California Institute of Technology, Pasadena, California 91 125, under Contract No. F04611-75-C-0010, Job Order No. 573010AU with the Air Force Rocket Propulsion Laboratory, Edwards AF B, California 93523.Attached Files
Submitted - AFRPL-TR-78-6.pdf
Files
AFRPL-TR-78-6.pdf
Additional details
Identifiers
- Eprint ID
- 50505
- Resolver ID
- CaltechAUTHORS:20141017-143920713
Funding
- Air Force Rocket Propulsion Laboratory
- F04611-71- C- 0060
Dates
- Created
-
2014-10-20Created from EPrint's datestamp field
- Updated
-
2019-10-03Created from EPrint's last_modified field
Caltech Custom Metadata
- Caltech groups
- GALCIT