[ms518]

Dear all,

Currently working under COMSOL to perform aeroacoustics simulations, I am considering switching to OPENFOAM and would like to ask some advice to users familiarised with these types of problems and using OPENFOAM to solve them.

The main reason for why I consider using a different software is because I am facing a lot of convergence problems with the Aeroacoustics Module of COMSOL, without being able to understand why: given the difficulty to access the code as in an open-source software, understanding the error stated and identifying the origin of the issue becomes nearly impossible and makes us get stuck on very simple problems. Additionally, implementing your own model or boundary conditions to improve a model is a very tedious task on such a commercial software.

I have recently heard about OPENFOAM, which seems to offer more possibilities and flexibility. However I haven't seen a lot of documentation or research on aeroacoustics using OPENFOAM and I was wondering about its use and performance in this area. My main project consists in simulating the airfoil-turbulence interaction noise (involving turbulence modelling and solving the Linearized Euler Equations with specific boundary conditions).

Has any of you already used OPENFOAM for successful aeroacoustics simulations and possibly solving LEE? What feedback/advice would you give (on its own or in comparison with a commercial software)?

Thank you for your advice.
ms518

[elvis]

Hi,
maybe the presentation from the OF workshop are of interest for you
http://www.openfoamworkshop.org/contributions
http://www.openfoamworkshop.org/asse...al_Program.pdf

[ms518]

Thank you for your links Elvis. I have already been on this website before posting here though, these presentations are good.

Any other advice or personal experience in this domain?

Thanks a lot!

[Attesz]

Originally Posted by ms518

Any other advice or personal experience in this domain?

Have you found out something in this topic? I am going to test the available acoustic libraries on benchmark cases, but not sure if they are applicable to real world cases...

[PeterShi]

Originally Posted by Attesz

Have you found out something in this topic? I am going to test the available acoustic libraries on benchmark cases, but not sure if they are applicable to real world cases...

Hi,

I am also testing five aeroacoustic benchmark cases.

Best,
Peter

[PeterShi]

Originally Posted by ms518

Dear all,

Currently working under COMSOL to perform aeroacoustics simulations, I am considering switching to OPENFOAM and would like to ask some advice to users familiarised with these types of problems and using OPENFOAM to solve them.

The main reason for why I consider using a different software is because I am facing a lot of convergence problems with the Aeroacoustics Module of COMSOL, without being able to understand why: given the difficulty to access the code as in an open-source software, understanding the error stated and identifying the origin of the issue becomes nearly impossible and makes us get stuck on very simple problems. Additionally, implementing your own model or boundary conditions to improve a model is a very tedious task on such a commercial software.

I have recently heard about OPENFOAM, which seems to offer more possibilities and flexibility. However I haven't seen a lot of documentation or research on aeroacoustics using OPENFOAM and I was wondering about its use and performance in this area. My main project consists in simulating the airfoil-turbulence interaction noise (involving turbulence modelling and solving the Linearized Euler Equations with specific boundary conditions).

Has any of you already used OPENFOAM for successful aeroacoustics simulations and possibly solving LEE? What feedback/advice would you give (on its own or in comparison with a commercial software)?

Thank you for your advice.
ms518

Hi MS518,

Have you found anything interesting in this topic? I am also curious about what OpenFOAM can do in aeroacoustics. My focus is the trailing edge noise. Could you please share us something, if any.

BTW, do you have documents gave by elvis? These two links are outdated, so I cannot open.

Thanks in advance.

Best,
Peter

[guanjiang.chen]

Originally Posted by elvis

Hi,
maybe the presentation from the OF workshop are of interest for you
http://www.openfoamworkshop.org/contributions
http://www.openfoamworkshop.org/asse...al_Program.pdf

Hi elvis,

I click the link but it shows the page not found. Can I find it using in other way?

Thanks,
Guanjiang