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March 19, 2018, 02:11 |
FlatWave Velocity as a function of Thrust
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#1 |
New Member
Daniel
Join Date: Nov 2015
Posts: 10
Rep Power: 11 |
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. |
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April 10, 2018, 07:01 |
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#2 |
Senior Member
Ping
Join Date: Mar 2009
Posts: 556
Rep Power: 20 |
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 |
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April 11, 2018, 21:53 |
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#3 | |
New Member
Daniel
Join Date: Nov 2015
Posts: 10
Rep Power: 11 |
Quote:
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Tags |
self propulsion, virtual disk model |
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