In the past, I mostly used WAMIT and NEMOH to compute the hydrodynamic coefficients of floating bodies. Now, due to licensing reasons, I had to switch to ANSYS Aqwa.
The added mass terms for the rotational degrees of freedom are expressed in N.m2/°. I would be expecting the units to be kg.m2. Is the added mass value returned by Aqwa as a function of circular wave frequency? Where in the guide can I find this information? I have checked, but unsuccessfully.
Dear Enrico
As far as I know, both .LIS and .AH1 AQWA files contain added mass and radiation damping in dimensional SI units.
Testing BEMRosetta, results from same models in different BEM solvers were compared and they matched well, so the hypothesis seems to be correct.
Best regards
Iñaki Zabala
As an alternative, just because you've mentioned licensing of WAMIT, you can try HAMS. It has a simple input format and writes out WAMIT type output files. It has also recently been made open source.
I've tested it on complex geometries against WAMIT with very dependable results and decided to switch to HAMS.
Here is the background info and access:
https://github.com/YingyiLiu/HAMS
https://www.researchgate.net/publication/341104060_HAMS_A_Frequency-Domain_Preprocessor_for_Wave-Structure_Interactions-Theory_Development_and_Application
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