Models for ship hydrodynamic analysis

jsaelices · October 23, 2009, 18:40

Hi,

Does anybody know the best model for analysis in the following cases?

1.- Free surface (no waves) analysis for ship resistance (viscous and wave-making)
2.- Free surface (waves) analysis for ship resistance ( added, viscous and wave-making)

For the second case the tutorial recommends 6-DOF with VOF but I do not want to analyze the ship movements in the first case so please recommends me a list of models to select.

Thanks!

Myra · October 26, 2009, 05:01

Quote:

Originally Posted by jsaelices

Hi,

Does anybody know the best model for analysis in the following cases?

1.- Free surface (no waves) analysis for ship resistance (viscous and wave-making)
2.- Free surface (waves) analysis for ship resistance ( added, viscous and wave-making)

For the second case the tutorial recommends 6-DOF with VOF but I do not want to analyze the ship movements in the first case so please recommends me a list of models to select.

Thanks!

I think for the first case you only need VOF, all other models are just normal models for CFD analysis.
For the second one, you might need VOF+Morphor+6-DOF

eleazar · November 8, 2009, 01:55

apply an email so that i will send you a model....

jsaelices · November 8, 2009, 06:17

Quote:

Originally Posted by eleazar

apply an email so that i will send you a model....

You can email me at jasanuars_@hotmail.com

Thanks!

sindustry · November 30, 2009, 03:56

I am looking for a model for Free surface (no waves) analysis for ship resistance (viscous and wave-making).
Do I need to set the 6DOF?
Please I would appreciate some help.
Thanks

hashem_1064 · March 13, 2010, 14:50

depend on the results that you want to know you can use 0 degree of freedom or 6-DOF. if you want to calculate drag in a specific speed you can handle the case considering it as a stationary body, but if you want to determine resistance-velocity curve or in cases you want to know how ship moves when it gradually speeds up you need to make a 6-DOF simulation.
cheers

October 23, 2009, 18:40	Models for ship hydrodynamic analysis	#1
jsaelices New Member Jaime Saelices Join Date: May 2009 Posts: 15 Rep Power: 16	Hi, Does anybody know the best model for analysis in the following cases? 1.- Free surface (no waves) analysis for ship resistance (viscous and wave-making) 2.- Free surface (waves) analysis for ship resistance ( added, viscous and wave-making) For the second case the tutorial recommends 6-DOF with VOF but I do not want to analyze the ship movements in the first case so please recommends me a list of models to select. Thanks!

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hashem_1064 New Member hashem Join Date: May 2009 Posts: 17 Rep Power: 16	depend on the results that you want to know you can use 0 degree of freedom or 6-DOF. if you want to calculate drag in a specific speed you can handle the case considering it as a stationary body, but if you want to determine resistance-velocity curve or in cases you want to know how ship moves when it gradually speeds up you need to make a 6-DOF simulation. cheers