libAcoustics

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Calculating Distance

7

Why magrobs_[iObs][iSurf][i] = mag(robs_[iObs][iSurf][i]) is not used, instead caculated the |r| = (-U_0*x/c_0+R)/(1-（U_0/c_0）^2).

Z-K-L

In file fwhFormulation.C I found next lines: https://github.com/unicfdlab/libAcoustics/blob/b9cd1d62ad8c5b445240a506a945231d12454b73/Sources/lib/analogies/FfowcsWilliamsHawkings/fwhFormulation.C#L73 https://github.com/unicfdlab/libAcoustics/blob/b9cd1d62ad8c5b445240a506a945231d12454b73/Sources/lib/analogies/FfowcsWilliamsHawkings/fwhFormulation.C#L76 On these lines components of vectors r_ are used explicitly, meaning that libAcoustics is sticked to specific frame of reference. I...

mkraposhin

Unable to run / compile / install in Openfoam

3

I am using OF v2012 to run libacoustics. I need help in its correct installation and have FFTW installed on my system too. However, wmake command does not work. Kindly...

Pranay1004

Running libAcoustic function at later time step

3

Hello, I have a very simple question. Suppose I run a LES simulation until there is a periodic behavior e.g. t=1s without libAcoustic. If I start a new LES simulation...

MarcusAW

Strategies to reduce memory usage

6

Hello, I am running a large LES simulation that requires small time steps. I am having trouble with memory usage when using a setup similar to the tutorials. Besides increasing...

MarcusAW

fftFreq - what does it do?

4

What is the function of fftFreq in the commonSettings file?  I've run a simulation using the FWH GTFormulation. The acoustics were turned on for 0.1 s of simulation time,...

cjn01

The process of sound pressure acquisition is suddenly interrupted

1

When performing parallel calculations, when multiple sound pressure monitors are set up, the calculation of sound pressure is suddenly interrupted during one time of the acquisitions, causing the run to...

VamosZhi

cannot find -lfftw3

2

Hi, anyone could help me with the following Compilation problems: /cvmfs/soft.computecanada.ca/gentoo/2020/usr/x86_64-pc-linux-gnu/binutils-bin/2.33.1/ld.bfd: cannot find -lfftw3 collect2: error: ld returned 1 exit status make: *** [/cvmfs/soft.computecanada.ca/easybuild/software/2020/avx2/MPI/gcc9/openmpi4/openfoam/v2112/OpenFOAM-v2112/wmake/makefiles/general:184: /home/z54cheng/OpenFOAM/z54cheng-v2112/platforms/linux64GccDPInt32Opt/lib/libAcoustics.so] Error 1 Best, Zhi

VamosZhi

FWH permeable surface

5

First of all thank you for creating Acoustic library, I have some questions. In order to create FWH surface for both 2D & 3D cases, What Should I do? Should...

Tohid2020

Can this solver show the acoustic field in paraview

1

I need to visualize the acoustic field. So, do this solver can present the acoustic distribution contour in paraview. Thnks

JustthanuMU