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Dear @sdu20951, Presumably in your graphs blue is OpenFAST and orange is AQWA? Regardless--given that the WindFloat tower is not located at the center of the floater, but rather on an offset column--I'd expect that you'd also have to change the potential-flow solution (diffraction, radiation, hydrostatics). I see that you are using your own WAMIT-formatted output files (OOStarYangTest2655), but you've kept I see a large mean heave in still water. Does your full-system weight (rotor, drivetrain, nacelle, tower, floater) balance with the floater buoyancy and vertical mooring pretension? When you eliminated the strip-theory solution from the orginal OC4-DeepCwind semisubmersible model, you also eliminated the water ballast. Are you accounting for this ballast in the platform weight within ElastoDyn? Best regards, |
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@sdu20951 did you get blue and orange lines to match, also what was it that triggered the problem, and what you do? |
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Dear @sdu20951,
Presumably in your graphs blue is OpenFAST and orange is AQWA?
Regardless--given that the WindFloat tower is not located at the center of the floater, but rather on an offset column--I'd expect that you'd also have to change the potential-flow solution (diffraction, radiation, hydrostatics). I see that you are using your own WAMIT-formatted output files (OOStarYangTest2655), but you've kept
PtfmRefxt
=0, which implies that this potential-flow solution is relative to the tower centerline; is that correct?I see a large mean heave in still water. Does your full-system weight (rotor, drivetrain, nacelle, tower, floater) balance with the floater buoyancy and vertical mooring pr…