水利水电技术2017，Vol.48Issue(9)：132-137,142,7.DOI:10.13928/j.cnki.wrahe.2017.09.020
水库水温分层对浮式取水口前流速分布的影响
Effect from reservoir water temperature stratification on velocity distribution in front of floating water intake
摘要
Abstract
Due to lack of studies made on the changing law of the flow field in front of floating water intake at present,a 3-D numerical simulation is made on the flow field therein with the k-ε turbulence model in accordance with the water temperature data of a reservoir by taking analyzing the effect from the reservoir water temperature stratification on the flow velocity distributions in all the cross-sections in front of floating water intake,from which the flow velocity distribution in front of the water intake is studied for both the conditions of the uniform water temperature and the water temperature stratification,and then the effect from the reservoir water temperature stratification on the flow velocity distributions in all the cross-sections in front of the floating water intake is analyzed.The study shows that the flow velocity distributions under the conditions of both the uniform water temperature and the water temperature stratification are different near the floating water intake and the difference is de creased along with the increases of water intaking flowrate and submerged depth.The study result can not only provide a technical support for the floating tubular water intake facility,but also can lay a theoretical basis for the prediction of the water temperature for water intake.关键词
环境水力学/浮式取水口/三维数值模拟/流速分布/水温分层/水库Key words
environmental hydraulics/floating water intake/3-D numerical simulation/flow velocity distribution/water temperature stratification/reservoir分类
环境科学引用本文复制引用
高学平,刘俊,孙博闻,宋清林..水库水温分层对浮式取水口前流速分布的影响[J].水利水电技术,2017,48(9):132-137,142,7.基金项目
国家自然科学基金(51279125) （51279125）
国家自然科学基金创新研究群体科学基金(51321065) （51321065）
天津市应用基础与前沿技术研究计划(15JCYBJC22600) （15JCYBJC22600）
