5th Order VOF Wave

miharbi · April 20, 2012, 14:34

Hi everyone,

I am running a simulation on a boat and using DFBI tutorial for reference, but I try to use the 5th order VOF wave instead of 1st order VOF wave in the tutorial.

my question is, in 5th order there is an additional velocity, from what I understand this function is to explain additional velocity that came from the boat. basically, the inverse of boat velocity. am I right?

and if I put the value in the additional velocity, do I have to put the same value on the initial velocity in DFBI-6DOF body to?

Thanks

miharbi · April 21, 2012, 14:32

please, does anyone know. need some help here.

lava12005 · April 29, 2012, 12:23

Hmm depends on your problem, are you running a ship moving in constant speed?
And if you are running in the ship reference frame, the initial velocity of the ship should be 0.

miharbi · May 2, 2012, 06:51

yes, I'm running the ship in constant speed. so should i put a value on inital value or in additional velocity?

and what do you meen by 'running in the ship reference frame'?

April 20, 2012, 14:34	5th Order VOF Wave	#1
miharbi New Member John Doe Join Date: Dec 2011 Posts: 7 Rep Power: 15	Hi everyone, I am running a simulation on a boat and using DFBI tutorial for reference, but I try to use the 5th order VOF wave instead of 1st order VOF wave in the tutorial. my question is, in 5th order there is an additional velocity, from what I understand this function is to explain additional velocity that came from the boat. basically, the inverse of boat velocity. am I right? and if I put the value in the additional velocity, do I have to put the same value on the initial velocity in DFBI-6DOF body to? Thanks

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April 21, 2012, 14:32		#2
miharbi New Member John Doe Join Date: Dec 2011 Posts: 7 Rep Power: 15	please, does anyone know. need some help here.

April 29, 2012, 12:23		#3
lava12005 Senior Member KHB Join Date: Aug 2010 Location: Singapore Posts: 118 Rep Power: 16	Hmm depends on your problem, are you running a ship moving in constant speed? And if you are running in the ship reference frame, the initial velocity of the ship should be 0.

May 2, 2012, 06:51		#4
miharbi New Member John Doe Join Date: Dec 2011 Posts: 7 Rep Power: 15	yes, I'm running the ship in constant speed. so should i put a value on inital value or in additional velocity? and what do you meen by 'running in the ship reference frame'?