Effect of roof impacts on coupling between wave response and shloshing in tanks of LNG-carriers

• Published in: Volume 6: Nick Newman Symposium on Marine Hydrodynamics; Yoshida and Maeda Special Symposium on Ocean Space Utilization; Special Symposium on Offshore Renewable Energy
• Main Authors: Molin, Bernard, Remy, Fabien, Ledoux, A., Ruiz, N.
• Other Authors: Institut de Recherche sur les Phénomènes Hors Equilibre (IRPHE), Aix Marseille Université (AMU)-École Centrale de Marseille (ECM)-Centre National de la Recherche Scientifique (CNRS), École Centrale de Marseille (ECM)
• Format: Conference Object
• Language: English
• Published: HAL CCSD 2008
• Subjects: sloshing; wave impact; LNG; [PHYS.MECA.MEFL]Physics [physics]/Mechanics [physics]/Fluid mechanics [physics.class-ph]; [SPI.MECA.MEFL]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Fluids mechanics [physics.class-ph]; Arctic
• Online Access: https://hal.science/hal-00454547; https://hal.science/hal-00454547/document; https://hal.science/hal-00454547/file/Molin2008.pdf; https://doi.org/10.1115/OMAE2008-57039

International audience An experimental campaign is reported on the wave response of a rectangular barge supporting two rectangular tanks partly filled with water. Flat and chamfered tank roofs are successively tested, at varying heights above the free surfaces inside the tanks. The tests are carried out in irregular wave systems coming from abeam. The measured barge roll and sloshing motions in the tanks are compared with numerical results from a linearized potential flow model. Good agreement is reported in mild seastates. Nonlinear effects, associated with large amplitude sloshing motion and/or roof impacts, are investigated.