Missing liquid ballast in WindIO specification of floating platform

[fabiopierella]

Description

In the WindIO definition of the floating platform, I cannot seem to find an indication that the lower pontoons are flooded.
After a conversation with @gbarter here, I think the correct way to specify fluid ballast would be to add something like the following block in the specification of the lower pontoons, together with a new material called ocean_water.

Let me know what you think about this solution.

Best,
Fabio

   - variable_flag: False
     material: ocean_water
     volume: 12345
     grid: [0.0, 1.0]

[dzalkind]

I agree that there should be some way to specify whether a member is filled/flooded. It's been on my TODO list to add this to WindIO/WISDEM.

In my mind, it was just a flooded: True flag. If a specific volume is specified, then it could conflict with the calculated volume that's defined by the member diameter/thickness and joint locations.

[gbarter]

WindIO improvement work is planned for the next 2-3 months. Let's keep this Issue open as a placeholder / reminder to add a flooded flag. This will be useful for fixed-bottom monopiles too.