Oscillatory Flow

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Hello, community. I have a doubt. I would like to realize a purely oscillatory flow. One of the requirements for this simulation is that, somehow, the mass flow has to be zero so that the wave passes through the medium and does not take the mass of liquid along with it (let's assume a cross section of a cylinder, a rectangle). What options would I have? Would there be a way to do this without importing the Acoustics library into Comsol? How to impose (algebraically) a mass flow condition equal to zero in COMSOL and how to place the wave in the simulation? Would it be worth using the Wave form part of COMSOL?Thank you very much.


2 Replies Last Post Jun 4, 2024, 12:26 p.m. EDT
Edgar J. Kaiser Certified Consultant

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Posted: 6 months ago May 18, 2024, 3:46 a.m. EDT
Updated: 6 months ago May 18, 2024, 4:36 a.m. EDT

Gabriel,

that sounds like it is pressure acoustics. Of course you can implement your own equations to avoid the acoustics module, but I doubt that this effort is worthwhile. It is a little like re-inventing the wheel.

Cheers Edgar

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Edgar J. Kaiser
emPhys Physical Technology
www.emphys.com
Gabriel, that sounds like it is pressure acoustics. Of course you can implement your own equations to avoid the acoustics module, but I doubt that this effort is worthwhile. It is a little like re-inventing the wheel. Cheers Edgar

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Posted: 5 months ago Jun 4, 2024, 12:26 p.m. EDT

Gabriel,

that sounds like it is pressure acoustics. Of course you can implement your own equations to avoid the acoustics module, but I doubt that this effort is worthwhile. It is a little like re-inventing the wheel.

Cheers Edgar

Thanks a lot!

>Gabriel, > >that sounds like it is pressure acoustics. Of course you can implement your own equations to avoid the acoustics module, but I doubt that this effort is worthwhile. It is a little like re-inventing the wheel. > >Cheers >Edgar Thanks a lot!

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