Weird representation of generated waves

stonescar · May 26, 2013, 01:10

Hi, I am trying to simulate a ship moving forward in head waves.
But when the simulation is done and I try to look at the free surface plot, there are some disturbances.
If you look at the picture you can clearly see alot of small waves, on top of the main waves that I am trying to create.
What can the reason for this be?

fuzel · June 21, 2013, 10:16

Hi stonescar,

my initial guess would be a combination of representation settings and mesh resolution.
Could you send/post a picture showing your mesh resolution in the free surface region? (your resolution in waveheight, wavelength)

Otherwise I d suggest double checking your wave settings. What order wave are you using? frequency wave height and check your initialization!

Cheers

Kons

fuzel · June 21, 2013, 10:19

ps.

did you have a look at a plot of the free surface along the domain?!

May 26, 2013, 01:10	Weird representation of generated waves	#1
stonescar New Member Join Date: Sep 2012 Posts: 3 Rep Power: 13	Hi, I am trying to simulate a ship moving forward in head waves. But when the simulation is done and I try to look at the free surface plot, there are some disturbances. If you look at the picture you can clearly see alot of small waves, on top of the main waves that I am trying to create. What can the reason for this be?

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June 21, 2013, 10:16		#2
fuzel New Member Kons Join Date: Apr 2012 Posts: 12 Rep Power: 13	Hi stonescar, my initial guess would be a combination of representation settings and mesh resolution. Could you send/post a picture showing your mesh resolution in the free surface region? (your resolution in waveheight, wavelength) Otherwise I d suggest double checking your wave settings. What order wave are you using? frequency wave height and check your initialization! Cheers Kons

June 21, 2013, 10:19		#3
fuzel New Member Kons Join Date: Apr 2012 Posts: 12 Rep Power: 13	ps. did you have a look at a plot of the free surface along the domain?!