Journal article
CFD validation studies for a high-speed foil-assisted semi-planing catamaran
Journal of marine science and technology, Vol.16(2), pp.157-167
06/2011
DOI: 10.1007/s00773-011-0120-7
Abstract
This paper details the CFD validation studies carried out as a prerequisite for multi-fidelity CFD-based design optimization of high-speed passenger-only ferries aimed at reducing far-field wake energy that causes beach erosion. A potential flow program (WARP) and a URANS program (CFDSHIP) were validated using full-scale measurements of resistance, sinkage, trim, and far-field wake train obtained over a wide range of speeds for two high-speed semi-planing foil-assisted catamarans: Spirit (LOA-22 m) and 1060 (LOA-17 m). This study posed a unique combination of challenges for CFD modeling: the foil appended geometry required complicated surface overset grids, the effect of the waterjet and wind resistance had to be modeled, and a method had to be devised to extrapolate the calculated near-field elevation to get the far-field wake train using Havelock sources. A more concentrated effort was applied to the URANS verification and validation which forms the focus of this paper. The results show that URANS is able to accurately predict the resistance and motions for both vessels when coupled with models that account for the propulsors and air resistance. The overall accuracy of URANS for the performance analysis of the foil-assisted, semi-planing catamarans was adequate to warrant its use as a tool for subsequent design and optimization of a new vessel with significantly reduced wakes.
Details
- Title: Subtitle
- CFD validation studies for a high-speed foil-assisted semi-planing catamaran
- Creators
- Manivannan Kandasamy - University of Iowa Iowa City IA USASeng Ooi - University of Iowa Iowa City IA USAPablo Carrica - University of Iowa Iowa City IA USAFrederick Stern - University of Iowa Iowa City IA USAEmilio Campana - INSEAN Rome ItalyDaniele Peri - INSEAN Rome ItalyPhilip Osborne - Golder Associates Inc. 18300 NE Union Hill Road, Suite 200 Redmond WA 98052 USAJessica Cote - Golder Associates Inc. 18300 NE Union Hill Road, Suite 200 Redmond WA 98052 USANeil Macdonald - Coldwater Consulting Gloucester ON CanadaNic de Waal - Technicraft Ltd. Birkenhead Auckland New Zealand
- Resource Type
- Journal article
- Publication Details
- Journal of marine science and technology, Vol.16(2), pp.157-167
- Publisher
- Springer Japan; Japan
- DOI
- 10.1007/s00773-011-0120-7
- ISSN
- 0948-4280
- eISSN
- 1437-8213
- Language
- English
- Date published
- 06/2011
- Academic Unit
- Mechanical Engineering; IIHR--Hydroscience and Engineering
- Record Identifier
- 9984064228002771
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