Total Dissolved Gas in the Near-Field Tailwater of Ice Harbor Dam

机译：冰港大坝近场尾水中的溶解气体总量

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Total dissolved gas (TDG) saturation levels were measured and recorded along 3 lateral transects in the immediate area downstream of the ice Harbor Spillway. The dissolved gas levels were dependent on total spillway discharge and spill pattern, reaching nerly 140 percent at the navigation lock guide wall for he largest discharge. The data showed significant and rapid gas absorption in the stilling basin, with a maximum TDG level of 162 percent at the stillign basin endsill for the largest discharge. A rapid desorption of TDG occurred over the next 200 ft of tailrace, reducing saturation to that measured at hte end of the guide wall. These results provide a basis to develop alternative designs to reduce TDG produced at hydraulic structures.

机译：在冰港溢洪道下游的紧邻区域，沿着3个横向样线测量并记录了总溶解气体（TDG）饱和水平。溶解气体的水平取决于溢洪道的总排放量和溢流方式，在航行锁导向壁处，最大的排放量达到了140％。数据显示，消沉盆地中的气体吸收迅速而迅速，在消沉盆地尽头，最大排放量的最大TDG含量为162％。 TDG在接下来的200英尺尾矿中迅速解吸，将饱和度降低到引导壁末端测得的饱和度。这些结果为开发替代设计以减少水工建筑物产生的TDG提供了基础。

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《Energy and water : Sustainable development proceedings of theme D》|1997年|p.513-517|共5页
会议地点 San Francisco CA(US);San Francisco CA(US)
作者
Steven C.Wilhelms; Michael L.Schneider;
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Total Dissolved Gas in the Near-Field Tailwater of Ice Harbor Dam

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