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.
出处
《水资源保护》
CAS
2009年第2期59-63,共5页
Water Resources Protection
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
reservoir water temperature
buoyant flow
2D laterally averaged coupled model
lower reaches of dam
thermal density flow
