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August 25, 2010, 03:28 |
Boat problem
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#1 |
New Member
Join Date: Jul 2009
Location: Prague
Posts: 28
Rep Power: 0 |
Hi to all,
I would like to ask you if anyone have any experience with boat hydrostatics and hydrodynamics in STAR-CCM+ (6DOF, multiphase, etc.). I'm Ansys CFX user but it seems that doesn't solve what I need. In this time I choosing which CFD software I will use in future. Thank you for your advise. B. |
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August 25, 2010, 06:27 |
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#2 |
Member
Elena Cortin
Join Date: Mar 2009
Location: Paris
Posts: 65
Rep Power: 17 |
i believe for this time star ccm is the best choice for that....
i also worked with cfx and i know for sure that the new star ccm is much better ( i do not know the changes of cfx from 2003) |
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August 25, 2010, 06:41 |
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#3 |
New Member
Join Date: Jul 2009
Location: Prague
Posts: 28
Rep Power: 0 |
CFX(Ansys 12.1) has 6DOF still as beta feature and will come as fully released in Ansys 13 but I have no time to wait for this version (yep it's relatively close) or even version 14.
I have no experience with STAR-CCM+ so I already ask for trial license. So will see. I just read and saw few paper with focus on ships and it looks usable. Thank you for your opinion. B. |
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August 25, 2010, 07:07 |
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#4 |
Member
Elena Cortin
Join Date: Mar 2009
Location: Paris
Posts: 65
Rep Power: 17 |
well star ccm is really very easy for this simulations... i believe that ansys is not so focus on that.
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August 25, 2010, 08:24 |
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#5 |
Member
Vinicius Girardi
Join Date: Mar 2009
Location: Sao Paulo, Brazil
Posts: 80
Rep Power: 17 |
STAR-CCM+ has a very good solver (comet was a VOF solver dedicated to the marine industry and was incorporated by CD-adapco in STAR-CCM+) and a dedicated post-processing for 6DOF problems!!
For sure is the best option for doing boat analysis! |
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September 8, 2010, 02:17 |
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#6 |
New Member
toby
Join Date: Aug 2010
Posts: 14
Rep Power: 15 |
I model boats in Star most days and i am getting happy with the results (only been 8 months). What exactually do you want to know
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September 8, 2010, 02:29 |
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#7 |
New Member
Join Date: Jul 2009
Location: Prague
Posts: 28
Rep Power: 0 |
I already spoke with guys from cd-adaco and I sure that this what I need. I just want know as much as is possible (forces, movements, stability, pitch, etc...).
Do you have any suggestions which can you give me? I don't mean anything specific. Just some hints. Thank you very much. B. |
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September 8, 2010, 02:35 |
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#8 |
New Member
toby
Join Date: Aug 2010
Posts: 14
Rep Power: 15 |
Are you trying to model fluid flows at speed or rolling/pitching in sea conditions. Can you outline your problem a little better?
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September 8, 2010, 03:04 |
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#9 |
New Member
Join Date: Jul 2009
Location: Prague
Posts: 28
Rep Power: 0 |
I would like to solve multiphase flow(air/water) with 6dof model (5dof actually, movement in x direction is locked) with flat water and than in waves (for various speeds).
What I want to know is complete hull behavior in specific conditions. - Hull resistance for determining the required propulsion power. - Hull stability. - Hull pitch - wave - piercing and after that I will see what I need next. Thank you. B. |
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