Session: 06-08-01 Model Tests - I

Submission Number: 174739

Green Water Events by Wet Dam-Break Experiments: Flow Patterns Synchronized With Load Measurements 

Marine structures are subjected to the interaction of incident flows with different patterns, which interact with their decks and superstructures in the form of green water events. However, it is still necessary to identify the loading trends that different types of green water events can cause. This paper presents experimental research of green water events on a fixed structure, which were generated by the wet dam-break approach. Synchronized data, regarding the visualization of flow patterns and the vertical loads induced in the structure, were obtained. Systematic experiments, varying the wet dam-break ratio, allowed the formation of flows with different features that interacted with the structure. These included breaking behavior and presented diverse loading trends. Experiments were performed in a wet dam-break installation, and the green water events were captured by a high-speed camera at 500 fps. This data was synchronized with the measurements of vertical loads on the deck, which were acquired by a force balance. The results showed the differences in the vertical load trends due to incident flows with different features, including flows interacting strongly with the structure. Some of the green water patterns and load trends found in the research have not been previously reported in literature. It is hoped that these results will be useful for comparing analytical or numerical results related to green water research.  

Presenting Author: Jassiel Vladimir Hernández Fontes Universidade do Estado do Amazonas

Presenting Author Biography: Jassiel V. H. Fontes is professor of Hydrodynamics and Naval Architecture at Amazonas State University. He obtained his M.Sc. and D.Sc. degrees from LabOceano, COPPE, Federal University of Rio de Janeiro, where he researched topics related to experimental hydrodynamics and violent fluid-structure interactions. Next, he did a postdoctoral research at National Autonomous University of Mexico evaluating ocean energy resources. His main research topics are related to experimental hydrodynamics, ocean engineering, ship dynamics and sustainable naval architecture and marine engineering.

Authors:

Jassiel Vladimir Hernández Fontes Universidade do Estado do Amazonas
Paulo De Tarso Themistocles Esperança Laboceano, COPPE, Universidade Federal do Rio de Janeiro
Edgar Mendoza Universidad Nacional Autónoma de México