drainage district

drainage district的基本解释

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排水管区

与drainage district相关的网络例句 [注：此内容来源于网络，仅供参考]

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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Since the newly formed collective received awards are: 2000: third prize art display area, the first variety show to town, the town of Games Group Total third, Longjiang Town, an advanced school; in 2001: the guard of honor Parade Town The first, physical inspection and the town of Wei first prize, the town will be shipped the first group Total, Shunde District, a small team of advanced brigade department, the variety show area second prize, Shunde District Arts Contest "second-class Golden Phoenix Award", Shunde District, green schools, Shunde District, experimental work of outstanding schools, Shunde District Health advanced units, Longjiang Town, an advanced school; 2002: The show is the town of the first prize, first prize for the honor guard Parade town, towns, morning exercises, inspections and assessments in the first primary school students 1, the town will be shipped second group Total, literature and art show area first prize, dance, creative program "Water Village Bamboo Doll" won the primary and secondary schools, Shunde District, first prize for the variety show made the town more than 10 years of my primary and secondary schools to participate in District Arts Jiang's speech of the highest award, as well as advanced literature and art, Longjiang Town, schools, art schools, Longjiang Town, Shunde District, Wei body of advanced school, Shunde District, a school, Shunde District, an advanced school; in 2003 the town has awarded the hosting of the Games for the overall points first, dance, literary and artistic creation show the program "sweet cane greedy Doll" was the first town, the first prize.

新组建以来所获得的集体奖项有：2000年：文艺汇演区三等奖、文艺汇演镇第一名、镇运会团体总分第三名、龙江镇先进学校；2001年：仪仗队汇操镇第一名、体卫工作检查镇一等奖、镇运会团体总分第一名、顺德区少队先进大队部、文艺汇演区二等奖、顺德区文艺创作大赛&金凤二等奖&、顺德区绿色学校、顺德区实验工作优秀学校、顺德区卫生工作先进单位、龙江镇先进学校；2002年：文艺汇演镇一等奖、仪仗队汇操镇一等奖、镇小学生早操检查评比第一名、镇运会团体总分第二名、文艺汇演区一等奖，舞蹈创作节目《水乡竹娃》获顺德区中小学生文艺汇演一等奖，取得了我镇10多年来中小学参加区文艺江演的最高奖项，还有龙江镇文艺先进学校、龙江镇先进学校、顺德区体卫工作先进学校、顺德区一级学校、顺德区先进学校；2003年又喜获镇运会团体总分第一名，文艺汇演舞蹈创作节目《甜甜蔗馋娃娃》获镇第一名、一等奖。

与drainage district相关的网络解释 [注：此内容来源于网络，仅供参考]

District, drainage：排水區

分水井 Distributor | 排水區 District, drainage | 洪泛區域 District, flood periphary inundated

drainage area and district：流域与区域

防排水技术:prevention and drainage technology | 流域与区域:drainage area and district | 松花江流域:the SongHua River drainage area