drainage canal
- drainage canal的基本解释
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排水渠
- 相似词
- 更多 网络例句 与drainage canal相关的网络例句 [注:此内容来源于网络,仅供参考]
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In this thesis, I summarize the theoretical calculation method, applied scope and notice of siphonic drainage system, and point out the advantage of siphonic drainage system compared with gravitation drainage system. In the archetype experiment study of siphonic drainage tube, I adopt different tube diameter and different structural height to survey the drainage volume and press in different place. I observe various kinds of flow state, and get chief factors which influence hydraulic peculiarity of system as the tube diameter or structural height, and find out the relevance of factor to flux. I apply CFD Fluent software and adopt standard k-ε model and RNG k-ε model, then use finite volume method and second-order upwind scheme to discrete numerical model, while coupling numeration of velocity field and press is based on SIMPLE. In the numerical simulation of curved part of tube, siphonic drainage tube experiment system and multi-outlet siphonic drainage system, I make research on internal velocity and press of system in different project condition by changing the tube diameter of curved part, negative press value in tube export and improving the quantity of water gutter. This thesis first adopts a method of combining archetype experiment and numerical simulation to study the siphonic drainage system, test and verify the validity of experiment and numerical simulation, and makefurther study on system, it solves the problems of limited testing conditions, and has a logical results, it can provide a valid method for optimizing and designing the drainage tube-net system. The conclusion have referring value for study and design of siphonic drainage system.
本文首先对虹吸式排水系统理论计算方法、适用范围以及注意事项做出总结,并分析了虹吸式排水系统的优势;再对虹吸式排水管道进行原型试验研究,采用不同管径不同立管高度,对系统流量、管道压强进行量测,观察了各种工况下的流态,对其水力特性进行研究分析,找出影响水力特性的落差、管径主要因素以及与排水量的关系;进一步应用计算流体力学Fluent软件,采用标准κ-ε模型与RNGκ-ε模型,计算过程应用有限体积法和二阶迎风格式对数值模型进行离散,速度和压力的耦合采用SIMPLE算法,分别对系统弯管段、虹吸排水管道试验系统、多斗虹吸式排水系统进行数值模拟分析,通过改变管段弯头处半径、管段出口负压值、增加雨水斗数对不同工况下系统内部的速度和压力进行研究;本文首次采用结合原型试验与数值模拟相结合的方法,对虹吸式屋面雨水排水系统进行研究,试验与模拟相互验证,并进行拓展,很好地解决了虹吸式屋面雨水排水系统由于试验条件限制问题,结果正确合理,为排水管网系统设计和优化研究提供了有效的方法,对工程设计有较好的参考价值。
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This paper first makes an introduction to turbulent debris flowdestroying drainage canal ,then simply summarizes the characteristics of the turbulent debris folw;thirdly deeply analyses drainage canal from two directions:one is vertical to drainage canal wall,the other is equal to drainage canal wall.
针对稀性泥石流特点,从垂直于排导槽边壁方向和平行于排导槽边壁方向对排导槽的受力情况进行了比较深入的分析,导出了多个公式,为设计排导槽提供了理论依
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To make the whole plan to exploit Great canal and canal culture , to constract"the scenic zone of canal culture", these works can make Great canal establish a beautiful spectacle of Linqing city·To exploit and utilize Great canal and canal culture, to demonstract its effect regard as the history culture resources, these works can make Great canal severe the Linqing's econcmic construction and socity development.
做好运河及运河文化开发的整体规划,构建沿临清运河河道过境线的&运河文化风景带&,能使运河成为临清城市建设和发展的一道亮丽风景。搞好运河及运河文化的开发和利用,充分发挥历史文化资源的作用,为临清的经济建设和社会发展服务,提高人民的生活水平、文明程度,造福于临清人民。
- 更多网络解释 与drainage canal相关的网络解释 [注:此内容来源于网络,仅供参考]
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drainage canal:排水渠
drainage blanket 排水层 | drainage canal 排水渠 | drainage engineer 排水工程师
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drainage canal:排水渠道
drainage 排水 | drainage canal 排水渠道 | drainage culvert 排水涵洞
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drainage canal:排水沟
drainage by well points ==> 井点排水 | drainage canal ==> 排水沟 | drainage channel ==> 排水沟,下水道
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Canal, drainage:排水渠
引水渠 Canal, diversion | 排水渠 Canal, drainage | 供水渠 Canal, feeder
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drainage by open canal:明渠排水
drainage by incision of posterior vaginal fornix ==> 经阴道后穹窿切开引流术,经阴道后穹窿切开引流术 | drainage by open canal ==> 明渠排水 | drainage by suction ==> 负压排水
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