Computational Fluid Dynamics of a Floating Offshore Wind Turbine using OpenFOAM: Validation against numerical and experimental results of a fully nonlinear Navier-Stokes/Volume-of-fluid numerical wave tank for the simulation of fluid-structure interaction of a floating offshore wind turbine

Floating Offshore Wind Energy represents an enormous potential for the future of wind energy and will play a pivotal role in the global energy transition. However, important technical challenges still need to be overcome by the industry regarding the standardization of processes like transportation, floating substructure concept, and supply...

Experimental simulation and assessment of the geysers of icy moons in the laboratory

The Cassini spacecraft, observing the Saturnian system for over 13 years, discovered aspects of the planetary system that were previously unseen. One such discovery is the eruption of geysers (plumes) from the Tiger Stripes on the surface of the icy moon Enceladus. An unexpected liquid water ocean exists underneath Enceladus’ icy crust (Postberg...

4D large scale variational data assimilation of a turbulent flow with a dynamics error model

We present a variational assimilation technique (4D-Var) to reconstruct time resolved incompressible turbulent flows from measurements on two orthogonal 2D planes. The proposed technique incorporates an error term associated to the flow dynamics. It is therefore a compromise between a strong constraint assimilation procedure (for which the...

Aeroacoustics and Flow Dynamics of an airfoil with a Gurney flap using TR-PIV

Aircraft noise has come under severe scrutiny due to growing number of airports and airline operations. The noise generated by high lift devices is now comparable to the turbofan engines due to increasing bypass ratios. A Gurney flap is a suitable starting point to study trailing edge flap aeroacoustics due to additional lift characteristics and...