| A method based on potential theory for calculating air cavity formation of an air cavity resistance reduction ship |
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| 作者单位： | College of Shipbuilding Engineering Harbin Engineering University，Harbin 150001，China，College of Shipbuilding Engineering，Harbin Engineering University，Harbin 150001，China，College of Shipbuilding Engineering，Harbin Engineering University，Harbin 150001，China，College of Shipbuilding Engineering，Harbin Engineering University，Harbin 150001，China |
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| 摘 要： | This research is intended to provide academic reference and design guidance for further studies to determine the most effective means to reduce a ship’s resistance through an air-cavity. On the basis of potential theory and on the assumption of an ideal and irrotational fluid, this paper drives a method for calculating air cavity formation using slender ship theory then points out the parameters directly related to the formation of air cavities and their interrelationships. Simulations showed that the formation of an air cavity is affected by cavitation number, velocity, groove geometry and groove size. When the ship’s velocity and groove structure are given, the cavitation number must be within range to form a steady air cavity. The interface between air and water forms a wave shape and could be adjusted by an air injection system.
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A method based on potential theory for calculating air ca formation of an air cavity resistance reduction ship |
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| Authors: | LI Yun-bo WU Xiao-yu MA Yong WANG Jin-guang College of Shipbuilding Engineering Harbin Engineering University Harbin China |
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| Institution: | LI Yun-bo,WU Xiao-yu,MA Yong,WANG Jin-guang College of Shipbuilding Engineering,Harbin Engineering University,Harbin 150001,China |
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| Abstract: | |
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| Keywords: | air cavity resistance reduction forming of air cavity potential theory cavitation number |
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