sediment outflow 中文意思是什麼
sediment outflow
解釋
出沙-
( 2 ) a series of experiments on time scale distortion are made with real river model, inflow and outflow boundary condition, and continuous simulation. by means of analysis of the experimental data on model water level, water - surface gradient, cross velocity, outflow discharge process and the sediment transportation capacity, the main physical reasons for the above hydraulic parameters deviations caused by time scale distortion are illustrated : response delay of model channel storage capacity and rate of water level with time
（ 2 ）採用真實的河工模型和入出流邊界控制條件以及連續模擬的方法進行了有關時間變態率的系列試驗，通過模型水位、比降、流速、出口流量過程線和斷面挾沙力試驗資料的分析，闡明了時間變態引起上述各種水力參數偏離的主要物理原因：模型的槽蓄響應和洪水過程時間變化率的響應滯后。 -
On the one hand, the sediment density current often does a great harm to the reservoir, and causes a big loss of reservoir ' s storage capacity or makes reservoir severe deposition ; on the other hand, sediment outflow by density current is an effective measure to mitigate sedimentation
異重流（本論文中主要指因含沙量的差異而形成的渾水異重流）一方面常常給水庫帶來嚴重的危害，加速水庫的淤積和庫容的損失；但另一方面它又為水庫排沙提供了一種極為有效的途徑? ?水庫異重流排沙。 -
The area of sediment outflow caused by piping was obtained by photo reproduction, and the local cross - sections of samples after the occurrence of piping were observed and measured with colored sediment taken as tracers
利用拍照還原等方式，得到管涌口出砂面積；並採用彩色砂作為示蹤材料，切片觀察測量管涌發生后試樣的局部剖面。 -
After a comprehensive review on the study of sediment density current in the recent several decades, a set of differential equations for 2 - d density current under double - layer computational mode is established. by simplifying th. set of equations, a 2 - d numerical simulation of sediment density current and sediment outflow has been made in the liujiaxia reservoir in the yellow river basin, and the result is reasonable
本論文在對異重流運動近幾十年來的研究成果進行較系統、全面論述的基礎上，針對目前研究較為前沿的異重流運動數值模擬問題，提出了一套二維異重流雙層計算模式下的基本方程，並在這套方程簡化的基礎上，對黃河流域劉家峽水庫中的異重流運動和排沙進行了二維數值模擬，結果令人較為滿意。 -
The changes of the hydraulic head, the water discharge and the area of the sediment outflow during the experiments are obtained
模擬二元結構堤基在不同防滲墻深度、位置條件下滲透變形的發生、發展過程。
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