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CFD Animations of waves, ships, and turbulence----

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Old   January 8, 2008, 05:03
Default Re: CFD Animations of waves, ships, and turbulence
  #21
Giovanni
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So the turbolence effects in the breaking wave pattern and the fragmantation of the water in droplet is fully simulated or is partially taken in account by the turbolence model? In another way: the wave that we see in the simulation is just the perturbation of the free surface, with turbolence phenomena accounted just in a numerical way or is the real shape of the wave? Giovanni

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Old   January 8, 2008, 08:47
Default Re: CFD Animations of waves, ships, and turbulence
  #22
Tom
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"We doing some studies of pure breaking waves to answer the flotsam versus jetsam question. We hope to compare to experiments that are being performed. We want to resolve the inertial range."

Yes, clearly this will answer the question. Very good stuff. Impressive animations too.

Thanks for your responses.

Tom

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Old   January 8, 2008, 09:09
Default Re: CFD Animations of waves, ships, and turbulence
  #23
Douglas Dommermuth
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Hi Giovanni,

These simulations are resolved. We use upwards of 10 to 50 million grid cells. The breaking-wave simulations that we are performing now use 100 million to 1 billion grid cells to resolve 1 to 2 carrier waves in length, 1/4 to 1/2 carrier-wave lengths in width, and 1/2 a carrier-wave length in depth.

Best regards,

Doug.
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Old   January 8, 2008, 12:41
Default Re: CFD Animations of waves, ships, and turbulence
  #24
Giovanni
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Oh my God, very impressive numbers, and very impressive results too!

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