Subsurface Mooring Stability in the Presence of Vertical Shear

Howard P. Hanson – Marine Technology Society Journal, August 2013


Observations in the Florida Current reveal significant vertical shear that can occur on the scale of turbine rotors and that can reverse. Because ocean current turbines in the Florida Current will require anchored moorings, the dynamics of the moored systems in the presence of shear become a factor in design and operation. Here, a simple stability analysis shows that the case of negative shear (slow current near the surface) is dynamically unstable for moored turbine systems.



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Filed under Modeling, System Development

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