Journal article
Head-wave parametric rolling of a surface combatant
Ocean engineering, Vol.37(10), pp.859-878
2010
DOI: 10.1016/j.oceaneng.2010.02.010
Abstract
Complementary CFD, towing tank EFD, and nonlinear dynamics approach study of parametric roll for the ONR Tumblehome surface combatant both with and without bilge keels is presented. The investigations without bilge keels include a wide range of conditions. CFD closely agrees with EFD for resistance, sinkage, and trim except for
Fr>0.5 which may be due to free surface and/or turbulence modeling. CFD shows fairly close agreement with EFD for forward-speed roll decay in calm water, although damping is over/under predicted for largest/smaller
GM. Most importantly CFD shows remarkably close agreement with EFD for forward-speed parametric roll in head waves for
GM=0.038 and 0.033
m, although CFD predicts larger instability zones at high and low
Fr, respectively. The CFD and EFD results are analyzed with consideration ship motion theory and compared with Mathieu equation and nonlinear dynamics approaches. Nonlinear dynamics approaches are in qualitative agreement with CFD and EFD. The CFD and nonlinear dynamics approach results were blind in that the actual EFD radius of gyration
k
xx
was not known a priori.
Details
- Title: Subtitle
- Head-wave parametric rolling of a surface combatant
- Creators
- Hamid Sadat-Hosseini - IIHR—Hydroscience & Engineering, The University of Iowa, Iowa City, IA 52242, USAFrederick Stern - IIHR—Hydroscience & Engineering, The University of Iowa, Iowa City, IA 52242, USAAngelo Olivieri - INSEAN—Italian Ship Model Basin, Via di Vallerano 139, 00128 Roma, ItalyEmilio F Campana - INSEAN—Italian Ship Model Basin, Via di Vallerano 139, 00128 Roma, ItalyHirotada Hashimoto - Department of Naval Architecture & Ocean Engineering, Osaka University, Osaka, JapanNaoya Umeda - Department of Naval Architecture & Ocean Engineering, Osaka University, Osaka, JapanGabriele Bulian - DINMA—Department of Naval Architecture, Ocean and Environmental Engineering, University of Trieste, Trieste, ItalyAlberto Francescutto - DINMA—Department of Naval Architecture, Ocean and Environmental Engineering, University of Trieste, Trieste, Italy
- Resource Type
- Journal article
- Publication Details
- Ocean engineering, Vol.37(10), pp.859-878
- Publisher
- Elsevier Ltd
- DOI
- 10.1016/j.oceaneng.2010.02.010
- ISSN
- 0029-8018
- eISSN
- 1873-5258
- Language
- English
- Date published
- 2010
- Academic Unit
- Mechanical Engineering
- Record Identifier
- 9984064583702771
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