大型绞吸挖泥船阻力预报的设置方法
Setting Method of Resistance Prediction for Large Cutter Suction Dredge
陈超 1余欣 2王有江 1陈新权 2何炎平2
作者信息
- 1. 上海交通大学海洋智能装备与系统教育部重点实验室,上海 200240;上海交通大学船舶与海洋工程设计研究所,上海 200240
- 2. 上海交通大学船舶与海洋工程设计研究所,上海 200240
- 折叠
摘要
绞吸挖泥船具有船体肥大、艏艉设有大型开槽等特征,与常规船型有显著区别.这增加了阻力预报的难度.为探究更为精确的阻力预报设置,论文以一艘性能经过船模试验验证的大型绞吸挖泥船为研究对象,基于STAR-CCM+软件,采用SST k-ω和Realizable k-ε两种湍流模型,在y+=1和y+=50两种条件下进行了静水阻力预报计算.结果表明:在y+=1的条件下计算得到的阻力预报结果相较于y+=50条件下的精度提高了约6％,采用SST k-ω模型计算得到的结果相较于Realizable k-e模型提高约4％.本研究成果将为自航式绞吸挖泥船的阻力预报提供可靠的参考依据.
Abstract
The cutter suction dredger is characterized by its bulky hull and large grooves designed at the bow and stern,which significantly differ from conventional ship designs.These unique features increase the difficulty of resistance prediction,rendering traditional resistance prediction methods insufficient or inapplicable.In order to explore more accurate resistance prediction settings,this paper focuses on a large-scale cutter suction dredger validated through ship model testing.Utilizing STAR-CCM+,two turbulence models,SST k-ω and Realizable k-ε,were employed to conduct calculations of still-water resistance prediction under the conditions of y+=1 and y+=50.The results show that the resistance prediction accuracy under the condition of y+=1 is improved by approximately 6％compared to that under y+=50,and the results by using the SST k-ω model exhibit a 4％improvement over the Realizable k-ε model.The research provides a reliable reference for accurate resistance prediction of self-propelled cutter suction dredgers.
关键词
绞吸挖泥船/阻力预报/计算流体力学Key words
cutter suction dredger/resistance prediction/computational fluid dynamics引用本文复制引用
基金项目
国家自然科学基金青年科学基金项目(52301377)
上海市自然科学基金资助项目(23ZR1433800)
中央高校基本科研业务专项()
出版年
2024
NETL
NSTL
万方数据