摘要
基于CFD技术,利用DFBI运动模型,结合重叠网格技术,在保证排水体积相同的前提下,对某滑行艇开展底部斜升角、浮心位置对水动力性能的影响研究。根据阻力、升沉、纵倾及自由液面兴波云图等选取较优的底部斜升角及浮心位置方案,开展模型试验研究。对比最终线型在不同航速下、模型试验与数值计算的结果表明,利用CFD方法能够准确预估滑行艇的阻力与运动状态,为滑行艇底部斜升角及浮心纵向位置等参数选取及艇型设计提供借鉴。
Based on CFD technology,the dynamic fluid body interaction(DFBI)motion model and overset mesh technology were used to study the influence of parameters such as bottom angle of inclination and buoyancy center position upon hydrodynamic performance of a certain planning vessel while ensuring the same drainage volume.According to the cloud diagram of resistance,heave,pitch and free surface wave making,the optimal scheme of bottom inclined angle and buoyancy center position was selected to conduct model experiment.The comparison of the final line plan of model experiments with numerical calculations at different speeds showed that the use of CFD method can accurately predict the resistance and motion state of the planning vessel.It can provide reference for the selection of parameters such as the bottom angle of inclination and the longitudinal position of the buoyancy center,as well as for the design of the boat shape.
作者
梁家健
程红蓉
陈京普
LIANG Jia-jian;CHENG Hong-rong;CHEN jing-pu(China Ship Science Research Center,Wuxi Jiangsu 214082,China;Lianyungang Center,Taihu Laboratory of Deep-sea Technological Science,Lianyungang Jiangsu 222000,China)
出处
《船海工程》
北大核心
2025年第1期60-65,70,共7页
Ship & Ocean Engineering
基金
国家重点研发计划(2022YFB4301402)。
