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Prediction of slamming loads on catamaran wetdeck using CFD
conference contribution
posted on 2023-05-23, 10:38 authored by Swidan, A, Thomas, G, Susantha RanmuthugalaSusantha Ranmuthugala, Irene PenesisIrene Penesis, Amin, W, Allen, T, Battley, MWetdeck slamming is one of the principal hydrodynamic loads acting on catamarans. CFD techniques are shown to successfully characterise wetdeck slamming loads, as validated through a series of controlled-speed drop tests on a three-dimensional catamaran hullform model. Simulation of water entry at constant speed by applying a fixed grid method was found to be more computationally efficient than applying an overset grid. However, the overset grid method for implementing the exact transient velocity profile resulted in better prediction of slam force magnitude. In addition the splitting force concurrent with wetdeck slam event was quantified to be 21% of the vertical slamming force.
History
Publication title
Proceedings of the 13th International Conference on Fast Sea Transportation (FAST 2015)Pagination
1-6Department/School
Australian Maritime CollegePublisher
OmnipressPlace of publication
United StatesEvent title
FAST 2015Event Venue
Washington DC, USADate of Event (Start Date)
2015-09-01Date of Event (End Date)
2015-09-04Rights statement
Copyright unknownRepository Status
- Restricted