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Acoustical scattering by radially stratified scatterers
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10.1121/1.2967825
/content/asa/journal/jasa/124/5/10.1121/1.2967825
http://aip.metastore.ingenta.com/content/asa/journal/jasa/124/5/10.1121/1.2967825

Figures

Image of FIG. 1.
FIG. 1.

Schematics for multiple scattering in a single scatterer.

Image of FIG. 2.
FIG. 2.

Canonical problems: (a) first canonical problem and (b) second canonical problem.

Image of FIG. 3.
FIG. 3.

Multilayered structure.

Image of FIG. 4.
FIG. 4.

Profiles of the sound speed for the two test cases, where is the sound speed of the host medium. Left: coreless case. Right: rigid-core case.

Image of FIG. 5.
FIG. 5.

Distributions of amplitude of acoustic pressure for the coreless case at . The numbers of layers used in the computation are 2, 4 (top row), 6, 10 (second row), 15, 20 (third row), 50, and 100 (bottom row).

Image of FIG. 6.
FIG. 6.

Distributions of amplitude of acoustic pressure for the rigid-core case at . The numbers of layers used in the computation are 2, 4 (top row), 6, 10 (second row), 15, 20 (third row), 50, and 100 (bottom row).

Image of FIG. 7.
FIG. 7.

Truncation limit (solid curve) as determined by Eq. (49) and the overflow limited (dashed curve) as determined by Eq. (50). The intersection point signifies the upper limit of the computable frequency. The shaded area defines the region where a computation with a desired accuracy is possible.

Image of FIG. 8.
FIG. 8.

Distributions of temperature in the vicinity of the cooling tube at six different Fo values: 10, 20, 50, 100, 200, and 500.

Image of FIG. 9.
FIG. 9.

Scatterer profiles for and 100. Steps indicate the layering structure.

Image of FIG. 10.
FIG. 10.

Pressure distributions in the vicinity of the cooling tube. Left column: a rigid cylinder, no cooling; center column: cooling tube with ; right column: cooling tube with . First row: ; second row: ; bottom row: .

Image of FIG. 11.
FIG. 11.

Form factor comparing the three cases at frequency .

Image of FIG. 12.
FIG. 12.

Form factor comparing the three cases at frequency .

Image of FIG. 13.
FIG. 13.

Form factor comparing the three cases at frequency .

Image of FIG. 14.
FIG. 14.

Scattering cross section of three cases: rigid cylinder, , and .

Tables

Generic image for table
TABLE I.

Wave expansion coefficient and basis matrices for two canonical problems.

Generic image for table
TABLE II.

Values for entry for two test cases.

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/content/asa/journal/jasa/124/5/10.1121/1.2967825
2008-11-01
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Acoustical scattering by radially stratified scatterers
http://aip.metastore.ingenta.com/content/asa/journal/jasa/124/5/10.1121/1.2967825
10.1121/1.2967825
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