2019
DOI: 10.1016/j.wavemoti.2019.01.003
|View full text |Cite
|
Sign up to set email alerts
|

Canonical sound fields in the frequency-domain theory of supersonic leading-edge noise

Abstract: This paper determines the three-dimensional structure of certain single-frequency canonical sound fields occurring in the theory of blade-vortex interaction when the flow velocity relative to the blade is supersonic. A relative velocity of this magnitude occurs at the outer part of the fan blades in an aeroengine, at which the incoming vorticity has either been ingested from the atmosphere or created in the aeroengine itself. The sound fields analysed are those produced by the leading edge of a flat-plate blad… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
1
1

Citation Types

0
4
0

Year Published

2019
2019
2019
2019

Publication Types

Select...
1

Relationship

1
0

Authors

Journals

citations
Cited by 1 publication
(4 citation statements)
references
References 22 publications
0
4
0
Order By: Relevance
“…Thus there are no surfaces of discontinuity or singularity in the frequency domain. For this reason, the canonical frequency-domain theory of supersonic leading edges is presented with its own development in the companion paper [17], in which Keller's geometrical theory of diffraction provides the unifying idea. In the present paper we have given complete details of Hadamard's and Friedlander's wavefront surfaces for a large number of impulsive sound fields produced by different types of gusts convected towards a supersonic edge, and we have provided explicit formulae for the pressure field in the different regions.…”
Section: Resultsmentioning
confidence: 99%
See 3 more Smart Citations
“…Thus there are no surfaces of discontinuity or singularity in the frequency domain. For this reason, the canonical frequency-domain theory of supersonic leading edges is presented with its own development in the companion paper [17], in which Keller's geometrical theory of diffraction provides the unifying idea. In the present paper we have given complete details of Hadamard's and Friedlander's wavefront surfaces for a large number of impulsive sound fields produced by different types of gusts convected towards a supersonic edge, and we have provided explicit formulae for the pressure field in the different regions.…”
Section: Resultsmentioning
confidence: 99%
“…A basic reference for the geometry of wavefront surfaces, and for the pressure field nearby, is [18]. Taking the present paper and the companion paper [17] together, one cannot fail to notice the enduring significance of the research in wave theory carried out by J. B. Keller and F. G. Friedlander in the fifteen years or so up about 1960.…”
Section: Introductionmentioning
confidence: 87%
See 2 more Smart Citations