[Horst]

Dear SFLOW Users and Developers,

i want to simulate ship waves in inland waterways with the use of REEF3D SFLOW and a moving pressure field. Some helpful colleques were kind enough to provide a running case of a sea going ship (.stl) in a large canal that works quite well.
I modified the canal geometry to my needs and ran the case with the above mentioned sea going ship and it still works, the ship is moving and creates a wave on the water surface.
After that, i exchanged the floating.stl geometry by a couple of our own stl geometries of riverboats and none of them interacts with the water. The results show a moving ship but there is no interaction with the water surface, eg. umax and vmax stay 0 throughout the simulation process and the result shows no wave.
There seems to be something wrong with the stl file that i do not see, however i tried many different geometry files and different forms regarding tabs, header and so on of the stl file. I even tried out a simple quad block that i created in paraview, and this doesn't work neither.
Is there any requirement regarding the ratio of cellsize to the resolution of the stl?

I attached a case with a floating quad block and I would kindly appreciate if somebody could take a look at the files and help me out.

Thanks in advance and best regards
Georg

[kamath]

Hi Georg,
I haven't worked with this, but your problem description was too good to pass up on.
Is this not what you are trying to achieve:
video

[valgrinda]

Hi Georg,

We have performed and validated several cases like this. Best to contact me through hans.bihs@ntnu.no.

[Horst]

This is exactly what i want to achieve. But as i mentioned in my question, i have problems with the set up of the floating object. I will contact Hans, as he proposed.