Aeroacoustic catastrophes : upstream cusp beaming in Lilley's equation
- Submitting institution
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University of Southampton
- Unit of assessment
- 12 - Engineering
- Output identifier
- 34256641
- Type
- D - Journal article
- DOI
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10.1098/rspa.2016.0880
- Title of journal
- Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences
- Article number
- 20160880
- First page
- -
- Volume
- 473
- Issue
- 2201
- ISSN
- 1364-5021
- Open access status
- Compliant
- Month of publication
- May
- Year of publication
- 2017
- URL
-
-
- Supplementary information
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- Request cross-referral to
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- Output has been delayed by COVID-19
- No
- COVID-19 affected output statement
- -
- Forensic science
- No
- Criminology
- No
- Interdisciplinary
- No
- Number of additional authors
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2
- Research group(s)
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-
- Proposed double-weighted
- No
- Reserve for an output with double weighting
- No
- Additional information
- This paper represents a significant contribution to the scientific understanding of the propagation of noise generated within turbulent jets through the jet shear layer flow. In particular, it develops a theory of complex rays in jets and demonstrates a hither-to unknown enhancement of upstream noise similar to that seen in the better known downstream cone-of-silence. This has a number of possible implications for both current aircraft and potential future novel aircraft where the airframe is closely coupled to the engine. In particular the potential for enhanced acoustic fatigue and scattering of the field to increase community noise are risks.
- Author contribution statement
- -
- Non-English
- No
- English abstract
- -