Effect of Second-Order Hydrodynamics on a Floating Offshore Wind Turbine

Research output: NRELTechnical Report


The design of offshore floating wind turbines uses design codes that can simulate the entire coupled system behavior. At the present, most codes include only first-order hydrodynamics, which induce forces and motions varying with the same frequency as the incident waves. Effects due to second- and higher-order hydrodynamics are often ignored in the offshore industry, because the forces induced typically are smaller than the first-order forces. In this report, first- and second-order hydrodynamic analysis used in the offshore oil and gas industry is applied to two different wind turbine concepts--a spar and a tension leg platform.
Original languageAmerican English
Number of pages156
StatePublished - 2014

NREL Publication Number

  • NREL/TP-5000-61452


  • design codes
  • hydrodynamics
  • offshore wind


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