| 联合生态调度对超饱和气体影响的数值研究 |
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| 引用本文： | 付小莉,沈超.联合生态调度对超饱和气体影响的数值研究[J].水动力学研究与进展(A辑),2016(1):99-106. |
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| 作者姓名： | 付小莉 沈超 |
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| 作者单位： | 同济大学土木工程学院,上海,200092 |
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| 基金项目： | 长江科学院开放基金资助项目和国家自然科学基金资助项目(50909075)Supported by the Yangtze River Scientific Research Institute Open Fund and the National Natural Science Foundation of China (50909075) |
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| 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。
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| 关 键 词： | 超饱和气体 泄洪洞 两相流 联合生态调度 |
Numerical study for the effect of joint ecological operation on the gas supersaturation |
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| Abstract: | 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. |
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| Keywords: | gas supersaturation outlet works two-phase flow joint ecological operation |
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