Marzi Rjb

Dear friends, I really need your help now! 

i am modelling a FPSO in Ansys Aqwa and i need to simulate some roll stabilizers

i have done this for Bilge Keel

and now i need to simulate U-Tube tank and Gyro Stabilizer.

because im running out if time, can you help me with modelling the u-tube?

- should i draw it first and then connect it or no? because i have done this and i prefaced some error

- how should i model the Gyro?


and if i have an external turret that is non-diffracting

should i put the solid mass or wet surface mass?

thank you for your time and kindness!