Question

How to simulate a reflection of an acoustic wave?

Answer 1

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I'm doing a simulation of the propagation of acoustic waves in space, and I would like to know how I could simulate an infinite plane material with an surface impedance Z. I assume that Z is independant of the incident angle, then we know that if a wave p1=Aexp(j(ωt−k1⋅r)) arrives, then there will be a reflected wave p2=ARexp(j(ωt−k2⋅r)), where r is the position, and k2 can be find if we know k2 using the law of reflection. Finally, here

R=Zcos(θ)−Z0Zcos(θ)+Z0

where θ is the incident angle and Z0 is the impedance of air.

The problem comes when I try to implement this. Indeed, I don't know how I could find efficiently the direction of the many incident waves.

Answer 2

$\textbf {\huge{ \red {ANSWER }}}$



Acoustic Wave Propagation Simulation Delay lines can be used to simulate acoustic wavepropagation.