基于立面二维水动力-水温耦合模型的水库水温分布  

Modeling water temperature distribution in reservoirs with 2D laterally averaged flow-temperature coupled model

作　　者：王冠[1] 韩龙喜[2] 常文婷[2] 

机构地区：[1]浙江省水利河口研究院,浙江杭州310020 [2]河海大学环境科学与工程学院,江苏南京210098

出　　处：《水资源保护》2009年第2期59-63,共5页Water Resources Protection

摘　　要：建立了考虑浮力影响的立面二维水动力-水温耦合数学模型,对温差异重流进行了研究,分析了浮力流的水流结构和温度分层的形成、发展过程,利用水库物理模型的试验数据对模型进行了验证,再将该模型应用于一拟建水库,模拟预测了该水库建成后夏季典型条件下库区的流场及温度场分布,研究了不同高程放流洞放水对库区流场、温度场及下泄水温的影响。A 2D laterally averaged flow-temperature coupled model that considers buoyancy was established and applied to thermal density flow simulation. The current structure of buoyant flow and the formation and growth of thermal stratification in reservoirs were studied. After being calibrated with the experimental data of a reservoir, the model was applied to a soon-to-be-built reservoir. The velocity field and temperature field in the reservoir under typical summer conditions were predicted, and the influence of water released from discharge points at different elevations on the velocity field, temperature field, and outflow temperature were studied.

关 键 词：水库水温 浮力流 立面二维耦合模型 大坝下游 温差异重流 

分 类 号：TV131.2[水利工程—水力学及河流动力学] TV697.21