University of Massachusetts Amherst

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MIE Seminar Series: "Hydrodynamic Coefficients and Pressure loads on Heave Plates for Semi-Submersible Floating Offshore Wind Turbines: a Comparative Analysis Using Large Scale Models"


Tuesday, February 19, 2019 - 1:00pm


Professor Antonio Souto-Iglesias, Universidad Politécnica de Madrid


Gunness Student Center, Marcus Hall


Hydrodynamic forces on heave plates for a semi-submersible floating offshore wind turbine will be discussed in this seminar. A model of one of the platform columns has been built that allows for fitting either a plain solid plate or the actual heave plate prototype design. The latter is equipped with a vertical flap at its edge. The influence of the flap on the hydrodynamic coefficients is investigated through a results comparison with the plain solid one. The model plate diameter is one meter, thus becoming, to the authors’ knowledge, the largest for which
results have been published. Results from experiments, in which added mass and damping coefficients have been measured, are presented. This experimental campaign also comprised the direct measurement of dynamic pressures on both heave plates, a fundamental magnitude for the structural design, which, until now, had not been experimentally explored for this type of system. Results are compared with literature and consistent nondimensionalizations are sought, with the aim of making these results useful for preliminary design purposes.

Antonio Souto-Iglesias. Naval Architect, PhD, Associate Professor in the Naval Architecture Department (ETSIN) of “Universidad Politécnica de Madrid” (UPM), Spain. He is the director of UPM’s Model Basin Research Group (CEHINAV). His research fields are experimental and numerical techniques applied to various problems in hydrodynamics, having worked on Smoothed Particle Hydrodynamics method, on sloshing and on marine renewables. He has published in journals like Computer Physics Communications, Physics of Fluids, Ocean Engineering, Physical Review E, Computer Methods in Applied Mechanics and Engineering, Renewable Energy, etc.