Vessel Sinks in flow-3d

bahar92 · December 25, 2014, 11:44

Hi, I am calculating drag force on the ship, my problem is that when Writing density"steel" or total mass'450 ton' in type of moving"couple" ,Vessel Sinks,I do not know what to do?

jason_sjtu · January 5, 2015, 00:05

hi,
the vessel's displacement is smaller than the tunnage. so you can try to use 'prescribe' instead of 'coupled' or set the density of your vessel.
i am simulating a ship's motion in waves. and the monving type is semi-coupled.that is x- and y- prescribed and z coupled.

bahar92 · January 5, 2015, 06:49

Thank
how much assign the density of your ship model?"SI unit"
can you send your "prepin" simulation just for see it,
"bahare.barmala@yahoo.com"

December 25, 2014, 11:44	Vessel Sinks in flow-3d	#1
bahar92 New Member bahar Join Date: Oct 2014 Posts: 3 Rep Power: 12	Hi, I am calculating drag force on the ship, my problem is that when Writing density"steel" or total mass'450 ton' in type of moving"couple" ,Vessel Sinks,I do not know what to do?

January 5, 2015, 00:05	deal with vessel sinking	#2
jason_sjtu New Member jason Join Date: Mar 2014 Posts: 19 Rep Power: 12	hi, the vessel's displacement is smaller than the tunnage. so you can try to use 'prescribe' instead of 'coupled' or set the density of your vessel. i am simulating a ship's motion in waves. and the monving type is semi-coupled.that is x- and y- prescribed and z coupled.

January 5, 2015, 06:49	question	#3
bahar92 New Member bahar Join Date: Oct 2014 Posts: 3 Rep Power: 12	Thank how much assign the density of your ship model?"SI unit" can you send your "prepin" simulation just for see it, "bahare.barmala@yahoo.com"

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