TY - GEN
T1 - SEMI-ANALYTICAL LOAD MODELS ACCOUNTING FOR THE TILT AND MOTION OF A CYLINDER IMPACTED BY A PLUNGING BREAKING WAVE
AU - Renaud, Paul
AU - Hulin, Florian
AU - Martin, Marc Batlle
AU - Scolan, Yves Marie
AU - Tassin, Alan
AU - Jacques, Nicolas
AU - Harris, Jeffrey C.
AU - Filipot, Jean Francois
N1 - Publisher Copyright:
Copyright © 2023 by ASME.
PY - 2023/1/1
Y1 - 2023/1/1
N2 - This work is part of the DIMPACT project that addresses breaking-wave-induced loads on floating wind turbines. In this context, the hydrodynamic impact of a strong plunging breaking wave on a cylinder is studied using semi-analytical models, with a focus on the loads sensitivity to the cylinder tilt and wave-cylinder relative motion. Two semi-analytical models are applied in a strip theory approach under the Froude-Krylov assumption. A numerical wave is generated using a Fully Nonlinear Potential Flow (FNPF) solver, whose free surface geometry and kinematics feed the semianalytical models. Semi-analytical slamming loads are compared with force measurements collected in a wave flume for different pitch angles and surge speeds. The temporal variation of the force as well as the maximum force acting on the cylinder are well estimated by the semi-analytical models. A new engineering formula is finally developed, accounting for the inclination and surge motion of the cylinder. The impact loads computed with this formula also show good agreement with the experimental tests.
AB - This work is part of the DIMPACT project that addresses breaking-wave-induced loads on floating wind turbines. In this context, the hydrodynamic impact of a strong plunging breaking wave on a cylinder is studied using semi-analytical models, with a focus on the loads sensitivity to the cylinder tilt and wave-cylinder relative motion. Two semi-analytical models are applied in a strip theory approach under the Froude-Krylov assumption. A numerical wave is generated using a Fully Nonlinear Potential Flow (FNPF) solver, whose free surface geometry and kinematics feed the semianalytical models. Semi-analytical slamming loads are compared with force measurements collected in a wave flume for different pitch angles and surge speeds. The temporal variation of the force as well as the maximum force acting on the cylinder are well estimated by the semi-analytical models. A new engineering formula is finally developed, accounting for the inclination and surge motion of the cylinder. The impact loads computed with this formula also show good agreement with the experimental tests.
KW - Floating Offshore Wind Turbine (FOWT)
KW - Plunging breaking wave
KW - Slamming
KW - Wave loads
UR - https://www.scopus.com/pages/publications/85173621035
U2 - 10.1115/OMAE2023-107740
DO - 10.1115/OMAE2023-107740
M3 - Conference contribution
AN - SCOPUS:85173621035
T3 - Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE
BT - Structures, Safety, and Reliability
PB - American Society of Mechanical Engineers (ASME)
T2 - ASME 2023 42nd International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2023
Y2 - 11 June 2023 through 16 June 2023
ER -