中国电机工程学报2025，Vol.45Issue(19)：7589-7599,中插35,12.DOI:10.13334/j.0258-8013.pcsee.240957
自由液面下漂浮式潮流能水平轴水轮机纵荡运动水动力特性研究
Hydrodynamic Characteristics of a Floating Tidal Stream Horizontal-axis Turbine With Surging Motion Under Free Surface
摘要
Abstract
To investigate the hydrodynamic characteristics of the surge motion of the tidal stream turbine(TST)under free surface conditions,this paper establishes a hydrodynamic analysis model,utilizing the improved delayed detached eddy simulation(IDDES)and the overset grid method.The hydrodynamic characteristics of the TST under different operating conditions(surge amplitude,surge period)are studied.The results indicate that:1)An increased surge amplitude leads to greater instability in the wake velocity,resulting in wake turbulence around the TST.2)As the surge period increases,the dynamic loading on the TST becomes more prolonged,thereby elevating the risk of fatigue fractures over long-term service.3)The unsteady characteristics of the instantaneous load value are mainly dominated by the viscous damping term,which is approximately 1.5 and 0.8 times of the C0p value and C0t value respectively.These findings provide significant insights into the mechanisms of wake generation and diffusion during the surge motion of the TST.关键词
潮流能水平轴水轮机/自由液面/纵荡运动/改进延迟分离涡模型/水动力/尾流特性Key words
tidal stream horizontal-axis turbine/free surface/surge motion/improved delayed detached eddy simulation(IDDES)/hydrodynamics/wake characteristics分类
建筑与水利引用本文复制引用
刘红藏,纪仁玮,张建华,朱仁庆,盛其虎,吴绵奎,伊扬..自由液面下漂浮式潮流能水平轴水轮机纵荡运动水动力特性研究[J].中国电机工程学报,2025,45(19):7589-7599,中插35,12.基金项目
江苏省高等学校基础科学(自然科学)研究项目(24KJB570001) （自然科学）
江苏省MTIC-JUST联合创新中心开放基金项目(2025MTIC-JUST001) （2025MTIC-JUST001）
江苏省研究生科研与实践创新计划项目(SJCX24_2456).Basic Science(Natural Science)Foundation of the Jiangsu Higher Education Institutions of China(24KJB570001) （SJCX24_2456）
MTIC-JUST Joint Innovation Center Development Fund(2025MTIC-JUST001) （2025MTIC-JUST001）
Postgraduate Research & Practice Innovation Program of Jiangsu Province(SJCX24_2456). （SJCX24_2456）
