基于flushing time的春季水库优化调度可行性研究

发布时间：2018-03-16 06:32

本文选题：flushing　切入点：time　出处：《人民长江》2016年15期 　论文类型：期刊论文

【摘要】：针对三峡水库支流库湾春季水华问题,通过建立三维水动力模型,探讨了利用调峰调度和潮汐式调度促进干支流水体交换的可行性。研究表明,当4月水库实施调峰调度时,整个库湾水体的flushing time较常规调度有所缩短,尤其是库湾上游至中上游区域;当5月水库开始实施潮汐式调度时,水体体积较大的库湾下游区域的flushing time较常规调度方案有所缩短。可见,两种水库优化调度方案对增大干支流水体交换均具有可行性。当水库实施调峰调度和潮汐式调度联合调度时,整个库湾水体的平均flushing time较常规调度方案有不同程度的缩短,表明该联合调度方案更能促进干支流水体的交换。研究成果可为支流库湾水环境问题的防治提供借鉴。
[Abstract]:In view of Shui Hua problem of tributary reservoir bay of the three Gorges Reservoir in spring, the feasibility of promoting the water exchange of the main tributaries by peak-shaving operation and tidal regulation is discussed by establishing a three-dimensional hydrodynamic model. The results show that when the reservoir carries out peak-shaving operation in April, The flushing time of the whole water body is shorter than that of the conventional operation, especially in the upstream to the middle reaches of the bay, and when the reservoir began to carry out tidal operation in May, The flushing time in the lower reaches of the larger reservoir bay is shorter than that in the conventional control scheme. Two kinds of reservoir optimal operation schemes are feasible to increase the water exchange of trunk and tributaries. The average flushing time of the whole reservoir bay water body is shortened to some extent when the reservoir carries out the combined operation of peak-shaving and tidal dispatching, and the average flushing time of the whole reservoir bay water body is shortened to some extent than that of the conventional operation scheme. The results show that the combined scheduling scheme can promote the exchange of tributaries and water bodies, and the research results can be used for reference for the prevention and control of the water environmental problems in the tributaries.
【作者单位】：浙江省水利河口研究院;浙江大学建筑工程学院;
【基金】：国家自然科学基金项目“大型水利水电工程生态环境效应水动力学机理及调控”(51279047) 浙江省科技计划项目“滨海水闸新型消能防冲技术研究及应用”(2015F50012)
【分类号】：TV697.11

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