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Numerical Simulatio...
Numerical Simulation of an Air-Bubble System for Ice Resistance Reduction
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- Ni, Bao Yu (författare)
- Harbin Engineering University
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- Wei, Hongyu (författare)
- Harbin Engineering University
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- Li, Zhiyuan, 1974 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Fang, Bin (författare)
- Marine Design and Research Institute of China (MARIC)
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- Xue, Yanzhuo (författare)
- Harbin Engineering University
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(creator_code:org_t)
- 2022-08-27
- 2022
- Engelska.
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Ingår i: Journal of Marine Science and Engineering. - : MDPI AG. - 2077-1312. ; 10:9
- Relaterad länk:
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https://research.cha... (primary) (free)
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https://research.cha...
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https://doi.org/10.3...
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Abstract
Ämnesord
Stäng
- Ships sailing through cold regions frequently encounter floe ice fields. An air-bubble system that reduces friction between the hull and ice floes is thus considered useful for the reduction of ice-induced resistance. In this study, a numerical analysis procedure based on coupled finite volume method (FVM) and discrete element method (DEM) is proposed to simulate complicated hull-water-gas-ice interactions for ice-going ships installed with air-bubble systems. The simulations reveal that after turning on the air-bubble system ice floes in contact with the hull side wall are pushed away from the hull by the gas-water mixture, resulting in an ice-free zone close to the side hull. It is found that the drag reduction rate increases with the increase of ventilation, while the bow ventilation plays a deciding role in the overall ice-resistance reduction. The proposed procedure is expected to facilitate design of new generations of ice-going ships.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Energiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Energy Engineering (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Meteorologi och atmosfärforskning (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Meteorology and Atmospheric Sciences (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Multidisciplinär geovetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Geosciences, Multidisciplinary (hsv//eng)
Nyckelord
- floe ice field
- air-bubble system
- numerical simulation
- coupled CFD-DEM
- ice resistance
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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