Radiation Impedance - Element In Array On Pulsing Sphere

R2026b

Radiation impedance of array element on spherical pulsating source

Since R2026b

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  • Radiation Impedance - Element In Array On Pulsing Sphere block

Libraries:
Simscape Acoustics / Radiation Impedance

Description

Add-On Required: This feature requires the Simscape Acoustics add-on.

The Radiation Impedance - Element In Array On Pulsing Sphere block models the radiation impedance of an array element on a spherical pulsating source, where an array of N identical elements covers the entire area of the sphere. The inertance of the element has the value

Me=Nρ4πr,

where:

  • N is the number of elements on the sphere.

  • ρ is the density of the fluid.

  • r is the radius of the sphere.

The resistance of the element has the value

Re=Nρc4πr2,

where c is the sound speed in the fluid.

Ports

Conserving

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Acoustic conserving port associated with the positive terminal.

Acoustic conserving port associated with the negative terminal.

Parameters

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Sphere size unit, specified as radius or area.

Radius of the sphere in meters.

Dependencies

To enable this parameter, set Specification to radius.

Surface area of the sphere in square meters.

Dependencies

To enable this parameter, set Specification to area.

Number of elements on the sphere, specified as a positive integer.

Version History

Introduced in R2026b

See Also

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