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momentum required to turn ship at certain radius

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Old   May 10, 2007, 04:17
Default momentum required to turn ship at certain radius
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lee
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help !

how to modeling/calculate the required momentum to turn ship at certain radius, suppose ship velocity, propulsion, draft.., and other parameters are all known

Should use sliding meshing? if so i guess fluent may be better at this ?

Thanks a lot !
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Old   May 10, 2007, 08:05
Default Re: momentum required to turn ship at certain radi
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Gert-Jan
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Yes, you can do it in CFX using a sliding mesh. I have done it before. It is just like an impeller in a vessel.

Gert-Jan

www.bunova.nl
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Old   May 11, 2007, 00:23
Default Re: momentum required to turn ship at certain radi
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lee
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thank you so much !

CFX may possible sovle the free surface problem, but how CFX treat the wave behind the ship ?

should i use "SHIPFLOW" together with "DYNASIM Tug Boat" to get the answer ?

thanks.
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Old   May 11, 2007, 16:58
Default Re: momentum required to turn ship at certain radi
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Gert-Jan
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How large do you think the effect of a wave wil lreally be. Can't you reduce the problem to a single phase with a free surface.

I do not know what you mean by SHIPFLOW and DYNASIM Tug Boat.

Gert-Jan
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Old   May 14, 2007, 06:15
Default Re: momentum required to turn ship at certain radi
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lee
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thanks, i will try sliding mesh first ..
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