摘要
在水利枢纽之间实现有效调度来减少总溶解气体对鱼类的危害是操作方便又经济的生态调度新方法。该文以哥伦比亚河上超饱和气体现象最严重的大古力坝下游鲁弗斯伍兹湖为研究对象,以现场观测资料为基础,采用二维两相流模型模拟电厂和泄洪孔之间流量转换下的鲁弗斯伍兹湖的超饱和气体浓度,对比分别利用改造泄洪建筑物结构和通过联合生态调度来降低其不利影响的效果,最终目的是通过合理水库调度方式,减轻或弥补对水生态环境的影响。
The joint ecological operation of the dams is considered to be a convenient and economic way of decreasing the total dissolved gas（TDG）, which is harmful to the fish downstream of the dams. In this paper, Rufus Woods lake, loacated downstream of the Grand Coulee dam, is taken as the research project,which has the most exceedances of water quantity standard of saturation on columbia river. The river TDG was studied by using field observation, emperical formula and two phase numerical simulations of multiple operations. The results showed the combinations of the proper spillway deflector and joint operation can greatly improve the status of gas supersaturation along the rivers. Thus, the proper way of joint ecological operation can release the effect of gas supersaturation on water enviroment.
出处
《水动力学研究与进展（A辑）》
CSCD
北大核心
2016年第1期99-106,共8页
Chinese Journal of Hydrodynamics
基金
长江科学院开放基金资助项目
国家自然科学基金资助项目(50909075)~~
关键词
超饱和气体
泄洪洞
两相流
联合生态调度
gas supersaturation
outlet works
two-phase flow
joint ecological operation
