AcousticImpedanceValue

AcousticImpedanceValue[pred,vars,pars]

represents a time or frequency domain impedance boundary condition for PDEs with predicate pred indicating where it applies, with model variables vars and global parameters pars.

AcousticImpedanceValue[pred,vars,pars,lkey]

represents a time or frequency domain boundary condition with local parameters specified in pars[lkey].

Details

Examples

open allclose all

Basic Examples  (5)

Set up a time domain acoustic impedance boundary:

Set up a frequency domain acoustic impedance boundary:

Set up a time-independent acoustic impedance boundary:

Define model variables vars for a transient acoustic pressure field with model parameters pars:

Define initial conditions ics of a right-going plane wave :

Set up the equation with an acoustic impedance boundary at the right and an impedance of :

Solve the PDE:

Visualize the solution:

Define model variables vars for a frequency domain acoustic pressure field with model parameters pars:

Set up the equation with a radiation boundary at the left, an acoustic impedance boundary at the right and an impedance of :

Solve the PDE:

Visualize the solution in the frequency domain at various frequencies :

Convert the solution to the time domain:

Scope  (2)

Define model variables vars for a transient acoustic pressure field with model parameters pars and a specific boundary condition parameter:

Define model variables vars for a transient acoustic pressure field with model parameters pars and multiple specific parameters boundary conditions:

Possible Issues  (1)

The default value for "SpecificAcousticImpedance" is Infinity:

Set a different value for the "SpecificAcousticImpedance":

Wolfram Research (2020), AcousticImpedanceValue, Wolfram Language function, https://reference.wolfram.com/language/ref/AcousticImpedanceValue.html.

Text

Wolfram Research (2020), AcousticImpedanceValue, Wolfram Language function, https://reference.wolfram.com/language/ref/AcousticImpedanceValue.html.

BibTeX

@misc{reference.wolfram_2020_acousticimpedancevalue, author="Wolfram Research", title="{AcousticImpedanceValue}", year="2020", howpublished="\url{https://reference.wolfram.com/language/ref/AcousticImpedanceValue.html}", note=[Accessed: 17-April-2021 ]}

BibLaTeX

@online{reference.wolfram_2020_acousticimpedancevalue, organization={Wolfram Research}, title={AcousticImpedanceValue}, year={2020}, url={https://reference.wolfram.com/language/ref/AcousticImpedanceValue.html}, note=[Accessed: 17-April-2021 ]}

CMS

Wolfram Language. 2020. "AcousticImpedanceValue." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/AcousticImpedanceValue.html.

APA

Wolfram Language. (2020). AcousticImpedanceValue. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/AcousticImpedanceValue.html