The Offshore Code Comparison, Collaboration, Continued, with Correlation and unCertainty (OC6) is an international research project run under the International Energy Agency (IEA) Wind Task 30. The project is focused on validating the tools used design offshore wind systems. OC6 implements a three-way validation process where both the engineering-level modeling tools and higher-fidelity tools are compared to measurement data. The results will be used to help inform the improvement of engineering-level models, and/or guide the development of future test campaigns.
The OC6 project consists of four phases to be performed over four years (2019-2023):
Phase Ia: Validate the nonlinear hydrodynamic loading on floating offshore wind support structures
Phase Ib: Additional data focused on Phase I from a component-level validation campaign geared towards CFD validation
Phase II: Develop and verify an advanced soil/structure interaction model for representing the pile/foundation interaction
Phase III: Validate the aerodynamic loading on a wind turbine rotor undergoing large motion caused by a floating support structure
Phase IV: Benchmark and validate methods for combining potential flow and viscous hydrodynamic load models for novel floating offshore wind support structures.