哈尔滨工程大学学报2025，Vol.46Issue(5)：876-883,8.DOI:10.11990/jheu.202311012
基于浸入边界法的河岸水轮机尾流恢复规律
Wake recovery of a bank-embedded hydrokinetic turbine based on the immersed boundary method
摘要
Abstract
To fully harness the kinetic energy of the river while minimizing the ecological impact of hydropower de-velopment,an environmentally friendly bank-embedded hydrokinetic turbine device was developed.To further pro-mote its application and provide a basis for optimizing the arrangement of multiunit arrays,a thorough study of the wake distribution and recovery process is essential.Therefore,large-eddy simulations were conducted to investigate the interaction between the turbine and the open channel flow.The dynamic solid boundary of the turbine system on the bank was modeled using the immersed boundary method,and the free surface was captured using a coupled lev-el-set and volume-of-fluid method.It was found that a velocity deficit region exists in the wake of the turbine on the bank.The velocity deficit,turbulence intensity,and Reynolds shear stress recover rapidly near the wake region,with the recovery rate gradually decreasing as the distance from the wake increases until full recovery is achieved.The transport terms of the Reynolds-averaged flow velocity equation were solved,and the advection term was found to have the greatest effect on momentum recovery in the wake zone of the turbine.The research results provide theo-retical insights into the promotion and application of the turbine and the arrangement of multiunit arrays.关键词
河岸水轮机/大涡模拟/浸入边界法/自由液面/尾流恢复/速度亏损/湍流强度/动量输运项Key words
bank-embedded hydrokinetic turbine/large-eddy simulation/immersed boundary method/free surface/wake recovery/velocity defict/turbulence intensity/moment transport term分类
能源与动力引用本文复制引用
高瑾瑾,廖轶鹏,郑源,李云,刘国庆,范子武..基于浸入边界法的河岸水轮机尾流恢复规律[J].哈尔滨工程大学学报,2025,46(5):876-883,8.基金项目
国家重点研发计划(2022YFC3202604) （2022YFC3202604）
国家自然科学基金项目(52271275) （52271275）
中央级公益性科研院所基本科研业务费专项(Y124005). （Y124005）
