A Brazil-Japan Collaboration on a Conceptual Design of a Floating Offshore Wind Turbine for the São Paulo Coast
Abstract
Wind energy is one of the most studied topics in the renewable energy scenario. In the last decades, the focus has
been put on several aspects of modeling and analysis of onshore wind turbines. Particularly in Brazil, onshore
wind energy has an enormous potential that has been investigated in some recent studies.
In turn, floating offshore wind turbines (FOWTs) appear as promising solutions for the near future in some areas
such as Europe and Japan. The design of FOWTs is a very complicated task that must consider various aspects
such as the responses to wave, current and wind loads, the static and dynamic stabilities and the structural
behavior of the mooring lines.
Because of that, several research projects have been carried out by different groups aiming at developing
numerical codes and experimental benchmark for FOWTs. This paper will provide an overview of an ongoing
research project which is currently being executed in a collaboration between the University of São Paulo and the
University of Tokyo. This project aims firstly at developing the conceptual design of a FOWT to be installed in the
proximity of Ilhabela, on the northern coast of the state of São Paulo. Hydrodynamic tests under a pure wave and
sea current loads will be used as the benchmark for in-house numerical codes and Computational Fluids Dynamics
(CFD) calculations. The mooring system will be investigated using both in-house codes and commercial simulation
packages. The secondary aim is to promote a scientific knowledge change between Brazil and Japan by students
and researchers exchange.
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Authors
Rodolfo T. Gonçalves, Dept. of Systems Innovation, UTokyo, Bunkyo/Japan,
Guilherme R. Franzini, Dept. Struct. and Geot. Eng., USP, São Paulo/Brazil,
Alexandre N. Simos, Dept. Naval Arc. and Ocean Eng., USP, São Paulo/Brazil,
Alfredo G. Neto, Dept. Naval Arc. and Ocean Eng., USP, São Paulo/Brazil,
Pedro C. de Mello, Dept. Naval Arc. and Ocean Eng., USP, São Paulo/Brazil,
Bruno S. Carmo, Dept. of Mechanical Engineering, USP, São Paulo/Brazil,
Kazuo Nishimoto, Dept. Naval Arc. and Ocean Eng., USP, São Paulo/Brazil,
Edgard B. Malta, Technomar Engenharia Oceânica, São Paulo/Brazil,
Daniel P. Vieira, Technomar Engenharia Oceânica, São Paulo/Brazil,
Lucas H. S. Carmo, Dept. Naval Arc. and Ocean Eng., USP, São Paulo/Brazil,
Giovanni A. Amaral, Dept. of Mechanical Engineering, USP, São Paulo/Brazil,
Marielle de Oliveira Dept. of Mechanical Engineering, USP, São Paulo/Brazil,
Ryota Wada, OTPE, UTokyo, Kashiwa/Japan,
Shinichiro Hirabayashi, OTPE, UTokyo, Kashiwa/Japan,
Hideyuki Suzuki, Dept. of Systems Innovation, UTokyo, Bunkyo/Japan