Acoustics

nalamyogesh · December 9, 2019, 10:28

Hello All,

Is there a way to create a sound source (like a audio speaker, ultrasound machine) and see the effect of the acoustic wave on the surrounding atmosphere.

Thanks,
Yogesh

siara817 · December 9, 2019, 11:24

It was possible previously using an acoustic wave solver.
You need to add a noise source.

LuckyTran · December 9, 2019, 15:57

A sound source is (crudely) just a pressure or velocity inlet. You just prescribe the pressure or velocity fluctuation as a function of time.

nalamyogesh · December 17, 2019, 05:29

Thank You for the responses. I hope they add this module in later versions.

If I give fluctuating pressures, will the pressure not disperse in all directions from the boundary. I believe in ultrasound wave, the pressure will be generated all along the wave (and then may be disperse in the entire region or the gas compresses and expands and not disperse the pressure in the region)

Thank You.

December 9, 2019, 10:28	Acoustics	#1
nalamyogesh Member Yogesh Nalam Join Date: Sep 2012 Location: München, Germany Posts: 54 Rep Power: 14	Hello All, Is there a way to create a sound source (like a audio speaker, ultrasound machine) and see the effect of the acoustic wave on the surrounding atmosphere. Thanks, Yogesh

December 9, 2019, 11:24		#2
siara817 Senior Member siamak rahimi ardkapan Join Date: Jul 2010 Location: Copenhagen, Denmark Posts: 220 Rep Power: 18	It was possible previously using an acoustic wave solver. You need to add a noise source. __________________ Good luck Siamak

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December 9, 2019, 15:57		#3
LuckyTran Senior Member Lucky Join Date: Apr 2011 Location: Orlando, FL USA Posts: 5,751 Rep Power: 66	A sound source is (crudely) just a pressure or velocity inlet. You just prescribe the pressure or velocity fluctuation as a function of time.

December 17, 2019, 05:29		#4
nalamyogesh Member Yogesh Nalam Join Date: Sep 2012 Location: München, Germany Posts: 54 Rep Power: 14	Thank You for the responses. I hope they add this module in later versions. If I give fluctuating pressures, will the pressure not disperse in all directions from the boundary. I believe in ultrasound wave, the pressure will be generated all along the wave (and then may be disperse in the entire region or the gas compresses and expands and not disperse the pressure in the region) Thank You.