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- Based on model test and the scene investigation, the flow structure around submerged spur dikes and evolution characteristic of river bed are researched . 根據水工模型試驗研究和工程現場考察,對漫水丁壩附近的水流結構,河床變形的特點進行了分析和研究;
- Local scour on the head of a spur dike is disadvantageous to the structures. 丁壩壩頭的局部沖刷對丁壩的整治效果產生不利影響。
- With the aid of model experiment and through theoretical analysis, turbulent characteristics of flow around spur dike are studied. 摘要通過水槽試驗,結合理論分析,研究丁壩附近的水流紊動。
- By large amounts of hydraulic model test,the paper analyzed the flow structure around submerged spur,and determined its computation formular of erosion depth for reference. 通過大量的水工模型試驗對漫水丁壩周圍的水流結構進行分析,並確定出漫水丁壩沖刷深度計算公式,經實體工程驗證,公式具有良好的精度和可靠性,可作為設計時的參考。
- By use of 3-D ultrasonic doppler velocimeter,the turbulence characteristics of water flow in the spur dike head and backflow region are observed and analyzed systematically. 利用三維超聲學多普勒流速儀對丁壩壩頭附近水流和迴流區水流的紊動特性進行了系統的觀測和分析,得到了丁壩壩頭和迴流區的水流特性及紊動動能的分佈規律。
- [Hydraulics] a spur dike; a groyne 丁壩
- Numerical Computation of Impingement of Tidal Bore on Spur Dike 涌潮衝擊丁壩的數值計算
- There are horse shoe vortex around spur dikes and Karman vortices behind spur dikes. 發現在丁壩的上游會形成馬蹄渦 ;在丁壩的背風面會形成卡門渦 .
- The flow patterns close to the non-submerged spur dikes are discussed on the basis of flume experiment. 以水槽試驗為基礎,對非淹沒丁壩附近的水流現象進行了定性描述。
- An Approach to the Depth of Local Scour of Non-submerged Spur Dike 非淹沒丁壩局部沖刷深度計算的探討
- Test Study on Hydraulic Calculation for Submerged Serial Spur Dikes 淹沒丁壩群水力計算的試驗研究
- On the Length of Circulation Region of Seepage Spur Dike 透水丁壩壩后迴流區長度研究
- Study of the unclear water local scour depth of spur dike 丁壩渾水沖刷試驗研究
- The dye injection and oil\|film method together with electromagnetic velocimeter are applied to measure the flow field around spur dikes. 研究分析了丁壩和護坦在沿河林區公路路基防護中的作用、防護原理、設置方法、應用條件和有效性問題。
- Jing Peng, Nobuyuki Tamai, Yoshihisa Kawahara and G.W.Huang, (1998): Numerical modeling of local scour around spur dikes, Proc. 彭靜,河原能久,丁壩群近體流動結構的可視化實驗研究,水利學報,2000.;2。
- Fortunately, the flood did not break the dike. 還好,這場大水沒有把堤壩沖壞。
- The dye injection and oil-film method together with electromagnetic velocimeter are applied to measure the flow field around spur dikes. 本文介紹了用顏料示蹤和最新的油膜技術對流動進行可視化記錄以研究淹沒丁壩群的近體流場分佈的試驗結果。
- The results from the experiments showed that the channel bed stability of gabion spur dikes is higher than that of conventional spur dikes. 試驗結果發現,丁壩種類以蛇籠透水丁壩之河床穩定性較傳統不透水丁壩為佳;
- The submarine submerged to avoid enemy ships. 該潛艇潛入水下以躲避敵艦。
- Flow simulation of spur dike using 3-D turbulent model 三維紊流模型在丁壩中的應用