navigation channel sedimentation 中文意思是什麼
navigation channel sedimentation
解釋
航道淤積- navigation : n. 1. 航行；導航；領航；航海[航空]術。2. 〈集合詞〉船。3. 〈古語〉航路；海上交通。adj. -al
- channel : n 1 水路，水道，渠，溝；海峽；河床，河底。2 （柱等的）槽，凹縫；【機械工程】槽鐵，凹形鐵。3 〈比...
- sedimentation : n. 1. 沉澱[沉積、沉降]（作用）。2. 沉積學，沉積法。
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And, we also have had the relation between the size of the horizontal circulation regions and the fr number around the dike for the flow - deflection method. the results of this study show that, using the method of flow - deflection or " sucking - spouting " water, the flow pattern can be improved, the size of the horizontal circulation regions and the sedimentation volume caused by the horizontal circulation can both be reduced. so, they can be adopted to improve the navigation condition of upper approaching channel of three gorges project, which could guarantee the safety of navigation
通過試驗，得到了以下創新的成果： 1 、不加吸、噴水時，丁壩后的迴流長度約為丁壩長度的8倍； 2 、加吸、噴水可以減小丁壩后的迴流尺度和強度，並得出了有理論根據的吸、噴流量與迴流尺度減小之間的定量關系以及吸、噴流量與丁壩周圍流速梯度之間的定量關系； 3 、加吸、噴水可以減小迴流淤積，並得出了吸、噴流量與淤積量減小之間的定量關系以及迴流尺度減小與淤積量減小之間的定量關系； 4 、加導流板可以減小丁壩后的迴流尺度，並得出了丁壩周圍的水流fr數與迴流尺度減小之間的定量關系。 -
Horizontal circulation at the inlet of the upper approaching channel of three gorges project can affect the safety of navigation. boundary layers will separate along a curved dike causing horizontal circulation regions which affect the overall flow field and increase sedimentation
類似的由於流動邊界出現凸出障礙物引起邊界層分離，導致迴流發展、流態惡化，造成泥沙淤積等一系列問題的情況，在水利、航道及電站等工程中普遍存在。 -
Sediment transport under the coexisting action of waves and currents and the prediction of sudden sedimentation in navigation channel
流共同作用下的近底泥沙輸移及航道驟淤預報
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