Session: 02-05-01 Extreme Loads and Responses

Submission Number: 157338

Slamming and Green Water Loads on a Cruise Ship Subjected to Extreme Seas 

Slamming and green water phenomena frequently occur across various vessel types navigating extreme sea conditions. When a freak wave impacts the hull, it can generate significant impact loads and bring large volumes of green water onto the deck. In addition to the structural Integrity and onboard safety, slamming forces and the presence of green water on decks can contribute to uncomfortable experiences, causing disruptions to activities and increasing the risk of seasickness. The objective of the paper is to analyse the slamming and green water loads on a cruise ship in extreme seas. The experimental measurements on the motions and vertical bending moments from model tests will be compared and analysed by comparing to the predictions from numerical models, along with the model uncertainty analysis. The occurrence and magnitude of the slamming and green water loads in regular seas with various heading angles and forward speeds will be discussed. The characteristics of the slamming and green water phenomenon of the cruise ship in irregular head seas will then be identified using the statistical analysis of the measurements from the model tests. Time history of slamming, green water loads and height of water column on deck will be presented and discussed as well.

Presenting Author: Shan Wang Centre for Marine Technology and Ocean Engineering (CENTEC), Instituto Superior Técnico

Presenting Author Biography: Dr. Shan Wang is a tenured assistant professor at the Department of Mechanical Engineering, Instituto Superior Técnico (IST), University of Lisbon. She received her PhD from the University of Lisbon in 2016, funded by the Portuguese Foundation for Science and Technology, and her thesis was awarded a "pass with distinction and honor." Dr. Wang has supervised and co-supervised 12 master’s students and 4 joint PhD students, published 84 peer-reviewed papers, and achieved an h-index of 21 with 1385 citations (Scopus). She is a member of the Editorial Board of Ocean Engineering, the Journal of Marine Science and Engineering, and Marine Energy Research, and is an associate board member of the Journal of Marine Science and Application. Dr. Wang has also been a guest editor for special issues in leading journals. She has contributed to eight funded projects, leading two FCT-funded projects and playing key roles in EU-funded projects such as EXTREME SEAS, ELASTMOOR, ARCWIND, and NATURSEA_PV.