Session: 06-03-02 Fluid-Structure, Multi-body and Wave-body Interaction II

Paper Number: 78926

78926 - Further Investigation on Wave Impact Loads on the Underside of a 2D Flat-Bottomed Model 

Slamming loads due to wave impact is a topic which can be related to several different situations in ocean engineering, such as the lowering of a subsea module through the wave splash zone during launching operations or wave loads underneath riser decks and other appendages on stationary units. In a previous study (Costa et al, 2021), the case of a flat-bottomed model submitted to regular incoming waves was explored both numerically and experimentally to reproduce, in a reduced scale, cases available in the literature. The present work aims to further investigate the case of a flat box susceptible to wave  impact loads, extending the analysis to a broader combination of wave properties to verify their effects over the coefficients. Slamming and suction coefficients are adopted to represent the loads through nondimensional parameters. Both numerical and experimental data are presented for a 2D assembly and different gaps between the underside of the model and the mean free surface level. A detailed discussion on the methods for the evaluation of the nondimensional coefficients is presented. Numerical simulations are performed through a commercial software and model tests are carried out at the wave tank of the Laboratory of Waves and Currents (LOC – COPPE/UFRJ).

Presenting Author: Daniel Costa Federal University of Rio de Janeiro

Authors:

Daniel Costa Federal University of Rio de Janeiro
Antonio Carlos Fernandes Federal University of Rio de Janeiro
Joel Sales Junior Federal University of Rio de Janeiro
Julia Perim Federal University of Rio de Janeiro