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Sound radiation from a flanged inclined duct
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10.1121/1.4764883
/content/asa/journal/jasa/132/6/10.1121/1.4764883
http://aip.metastore.ingenta.com/content/asa/journal/jasa/132/6/10.1121/1.4764883
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Baffled vibrating circular piston.

Image of FIG. 2.
FIG. 2.

Radiation from a flanged duct: (a) Cylindrical duct; (b) inclined annular duct.

Image of FIG. 3.
FIG. 3.

Scarfed turbofan duct systems: (a) Intake; (b) exhaust.

Image of FIG. 4.
FIG. 4.

Sketch of flanged inclined duct showing the Cartesian coordinate systems used in the mathematical formulation.

Image of FIG. 5.
FIG. 5.

(Color online) Visualization of the far-field pressure , for mode , Helmholtz number , radiated from a flanged cylindrical duct inclined at an angle: (a) ; (b) ; (c) ; (d) .

Image of FIG. 6.
FIG. 6.

(Color online) Polar directivity of the far-field pressure , for mode , Helmholtz number , radiated from a flanged cylindrical duct inclined at an angle.

Image of FIG. 7.
FIG. 7.

Percentage of total power radiated in for mode , Helmholtz number , radiated from a flanged cylindrical duct vs angle of inclination .

Image of FIG. 8.
FIG. 8.

(Color online) Percentage of total power radiated in for mode radiated from a flanged cylindrical duct vs Helmholtz number: (a) ; (b) ; (c) .

Image of FIG. 9.
FIG. 9.

Radiation from a flanged thin rectangular duct.

Image of FIG. 10.
FIG. 10.

(Color online) Examples of the far-field pressure directivity (in dB) for mode , Helmholtz number , radiated from a flanged thin rectangular duct inclined at an angle.

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/content/asa/journal/jasa/132/6/10.1121/1.4764883
2012-12-06
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Sound radiation from a flanged inclined duct
http://aip.metastore.ingenta.com/content/asa/journal/jasa/132/6/10.1121/1.4764883
10.1121/1.4764883
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