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Unexpected rolling

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Old   March 18, 2015, 18:44
Default Unexpected rolling
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Alistair Galbraith
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Hi

The aim of my project is to investigate the parametric rolling on the tumblehome hull. As advised when setting up my simulation I translated the overset mesh by 1 degree in x rotation to encourage ship rolling. However when running the simulation I have found that instead of rolling about 0 degrees, the ship instead rolls about 1 degree. I also found with different wave lengths that the vessel continues to heel to 5 degrees then starts rolling around that angle, sometimes with uneven oscillations. Therefore what can I do to remedy this and have the vessel rolling as expected.

Thanks
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