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Ansys Learning Forum › Forums › Discuss Simulation › General Mechanical › ANSYS AQWA Co-simulation extension for Hydro-Aero caluclation › Reply To: ANSYS AQWA Co-simulation extension for Hydro-Aero caluclation

May 15, 2024 at 7:47 am
Mike Pettit
Ansys Employee

Hello,

The Aqwa-Rigid Dynamics cosimulation uses the Functional Mock-up Interface (FMI) standard for the coupling between the two solvers (Functional Mock-up Units, FMUs). FMI requires a controller to manage the communication between the FMUs, and in our case we use Ansys Twin Builder for this. Therefore you will need to have Twin Builder installed (this is not part of the Mechanical installation).

If you believe this is already the case, please confirm that you have an environment variable ANSYSEM_ROOTNNN=C:\Program Files\AnsysEM\vNNN\Win64, where NNN is the version number (e.g. 222 for Release 2022 R2).

I hope this helps!

Mike