[dbalan]

Hi,

I'm currently working on a project where I'm simulation the self propulsion of a ship. I'm currently using the virtual disk model as I do have the open water performance curves. In the tutorial provided, it seems that the ship is simulated in a steady flow velocity while you obtain thrust and resistance as the results. You then change the velocity till you get a 0 net force between the thrust and resistance. What I am trying to achieve is to input the thrust or rpm of the virtual disk and get velocity that the ship can travel at.

Is there a way to make the flat wave velocity a function of the thrust of the virtual disk or something like that.

Any help is appreciated.

[ping]

you can but it is not a good idea since the change in inlet velocity creates a wave or depression that takes ages to get level again

the way to do this is to use zero inlet velocity and instead move the hull using a linear moving reference frame and then you just change the velocity in that frames properties as required

this method solves faster too and it a great way to run multiple vessel speeds

[dbalan]

Originally Posted by ping

you can but it is not a good idea since the change in inlet velocity creates a wave or depression that takes ages to get level again

the way to do this is to use zero inlet velocity and instead move the hull using a linear moving reference frame and then you just change the velocity in that frames properties as required

this method solves faster too and it a great way to run multiple vessel speeds

Thanks for your help. I might just follow what you suggest. Still a little new to moving reference frame, rigid body motion, overset mesh, etc.