excellent - interested in this topic as well. @zgaryulo do I get you correct, that the quantity that you want the simulation to predict is the angle the boat has with respect to the horizontal axis? So the boat can not be fixed in the domain, but free at least in rotation across the lateral axis? So looking at the graphic below, you’re looking for \tau ?
(Source: Planing bow hull and getting over the bow wave hump | Boat Design Net)
If that’s correct, we’ll probably need to work with the 6DOF model. In the other topic over here the boat is fixed withing the domain, so \tau is prescribed and not computed.

In any case, what we’ll need to do is upload a model of the flow domain, as SimScale is not yet capable to build an external flow mesh with a split face inlet to allow for both water and air entering the domain on the side. I did this briefly over in Onshape:
Let me know if you’re fine with me making the Onshape model public - then you could work on it as well.
As a side note: Middle of next week, there will be some improvements to SimScale with respect to multiphase flow analysis (@jprobst currently busy with this). So I’ll wait until then and run the first analysis and make my project public, okay?
Looking forward to this!
David

