摘要
混合式抽水蓄能电站在运行期间,可能对库区及其下游河段的水环境带来影响。本文基于二维和三维水温模型,以某混合式抽水蓄能电站为案例,探讨了该电站运行对库区水温、坝前水温、下泄水温及下游水温的影响。通过模拟结果,发现三维水温模型的模拟值普遍低于二维模型。三维模型在描述库区水体的垂向温度分层、温跃层及水流混合效应方面具有显著优势。尤其在精细分层、双温跃层现象的预测以及水体混合效应的模拟方面,三维模型展现出比二维模型更为精细和准确的特点。
The operation of hybrid pumped storage power plants may affect the hydrological regime within the reservoir area and downstream river reaches.This study,based on both 2D and 3D water temperature models,uses a hybrid pumped storage power station as a case study to investigate the changes in water temperatures in the reservoir,in front of the dam,in the discharged water,and in the downstream area.Simulation results indicate that the 3D water temperature model tends to yield lower values compared to the 2D model.The 3D model demonstrates significant advantages in describing vertical temperature stratification,thermal stratification,and water mixing effects within the reservoir.In particular,the 3D model shows greater detail and accuracy in simulating fine stratification,predicting double thermocline phenomena,and modeling water mixing effects compared to the 2D model.
作者
易帆
陈享莉
罗杰
王莉
孙丹丹
YI Fan;CHEN Xiangli;LUO Jie;WANG Li;SUN Dandan(POWERCHINA Chengdu Engineering Corporation Limited,Chengdu 610000,China)
出处
《水电与抽水蓄能》
2025年第4期24-35,共12页
Hydropower and Pumped Storage
基金
中国水利水电建设工程咨询有限公司科技项目“大型水电工程环境影响后评价指标体系研究”(ZX-KJHB-20230011)。
关键词
混合式抽水蓄能电站
上下水库
立面二维水温模型
三维水温模型
hybrid pumped-storage hydropower plant
upper and lower reservoirs
2D vertical water temperature model
3D water temperature model
