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Published byImmanuel Breeden Modified over 9 years ago
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Hydrodynamic aspects of the Air Lifted Vessel (ALV) Presenter: Nan Xie Supervisor: Prof. Dracos Vassalos SSRC, NA-ME
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1 The Project - EFFISES 5 th Framework Program of EU 13 partners from 9 EU-countries Super high speed marine transportation Objectives: Passenger ship: E40, 70kn Cargo ship: E125,50kn Efficient – less power, 25% Environment friendly – less emission & wash Safe
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SSRC’s task Development of methods & tools Wash Wave Stability
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2 Prediction of Wash Wave of ALV Features: Over 80% of vessel weight are supported by air-cushion Pressure patch distribution over cushion Linear potential theory New numerical scheme
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Results:
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3 Stability study Features: Air compressibility in cushion Non-linear equations of motions Time domain simulation Impulse response function & memory effects Case study
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Results – Free surface elevation
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Results - Impulse response function
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Results - Porpoising
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4 Outcomes: Project deliverables Paper for ISOPE’04 Paper for PRADS’04
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5 Future Works Wash wake assessment of ALV Refinement of mathematic model of stability 6 DOF Stability in manoeuvring motion CFD – dynamic force derivates Design & operational guideline, safety assessment
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Acknowledgments
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