1) rectangular channel
矩形渠道
2) rectangular open channel
矩形明渠
1.
Operator splitting method for calculating uniform flow depths and bed widths of rectangular open channels;
矩形明渠均匀流水深和底宽的算子分裂算法
2.
Three dimensional numerical modelling of rectangular open channel flows;
矩形明渠三维紊流的数值模拟
3.
According to the asymptotic solution of uniform flow equations for rectangular open channels,througn linear coupling and constructing rational fraction approaching function for residual,a asymptotic coupled method for constructing approximate formula of uniform flow equation of rectangular open channels is presented.
基于矩形明渠均匀流方程的渐近解 ,通过线性耦合并构造残差的有理分式逼近函数 ,提出了一种渐近耦合法用于建立矩形明渠均匀流方程的近似算式 该算式便于直接计算 ,适用范围广 ,在定义域内的精度可达 10 -4 通过基本方程变形 ,还提出了另外一种形式略微复杂但精度可达 10 -8的近似算
3) trapezoidal channel
梯形渠道
1.
Analytical solution to concentration distribution discharged from a stream of effluent into trapezoidal channel flow;
梯形渠道岸边排污浓度分布的理论分析
2.
A series of experiments are carried on through two kinds of different link transition section(the distortion and the partition wall) as well as the different weir thickness and gap width at the trapezoidal channel.
在梯形渠道上通过2种不同的连接渐变段(扭面与隔墙)以及不同的堰厚和缺口宽度组合,进行了系统的跌水口量水试验,应用量纲分析法建立了2种连接渐变段在不同堰厚下的流量公式,得出流量计算的平均相对误差最大值为3。
3.
By means of iteration, a table is achieved for the solution of depth to width ratio and width to depth ratio of trapezoidal channels.
利用计算机进行迭代计算，得到了梯形渠道深宽比与宽深比的求解表。
4) U-shaped canal
U形渠道
1.
Systematic experiments on the U-shaped canals with 12 different contraction ratios for measurin.
该文提出了一种仿真机翼形状的渠道量水设施,在U形渠道中通过12种量水槽收缩比进行了系统的组合试验,试验结果表明:该量水槽过流顺畅,水头损失小,试验数据资料表现出极好的相关性,相关系数为R2=0。
2.
The simplified calculation of cross-section gauging flow which follows Prandtl\'s exponential distribution law is presented for miniature U-shaped canals based on the practice from the interior control of irrigation water in Ningxia WUA and some gauging flow cross-sections are established on miniature U-shaped canal by irrigation projects and maintenance of agricultural comprensive development.
针对宁夏项目区农民用水协会(WUA)组织内部实施量水到户遇到的实际问题,考虑到农业综合开发田间配套工程中已在农渠等小型U形渠道上修建了部分用于渠道量水的标准断面,提出了流速服从紊流型态的普朗特指数分布规律的小型U形渠道断面测流的简化方法以及相应的断面流量计算公式。
5) U-shaped channel
U形渠道
1.
The hydraulic and structure properties of U-shaped channel s section are attractive.
U形渠道断面水力和结构性能优越,是渠道输水工程中较常采用的断面形式之一,水力计算中的正常水深、临界水深求解无显函数形式的表达公式。
2.
This article introduced the inference of the optimal hydraulic section,the radius selection of circular bottom and the height of vertical side,as well as the hydraulic calculation of a U-shaped channel.
介绍U形渠道水力最佳断面的推求,断面底圆半径与上部直立段高度的选取,以及泄流量的计算方法。
3.
Parabolic mobile measuring weir plate and portable flow measurement flume are two types of water-measuring device for small-sized U-shaped channel flow measurement in irrigation district.
抛物线形移动式量水堰板和便携式量水槽是针对小型U形渠道测流而提出的量水设备,具有使用方便,结构简单等优点。
6) U shape channel
U形渠道
1.
A new mobile parabolic thin plate weir for U shape channel flow measurement was developed, the height difference between upstream water and backwater and critical submerged ratio is analyzed, the allowable sectional area ratio of flow measuring weir to the U shape channel is obtained, the formulae for calculating the discharge and the law of the discharge coefficient are put forward.
该文提出了 U形渠道抛物线形移动式量水堰板 ,研究量水堰板的壅水高度、临界淹没度、喉口水深 -流量关系与渠道断面、比降和喉口收缩比的关系 ,给出了喉口收缩比范围和流量系数计算公式 ,分析了其测流误差。
2.
According to experiments in U shape channel, the discharge formula and discharge -head relation and discharge error are all found.
通过在U形渠道上的试验研究得出该槽的流量公式、流量水头关系、测流误差。
补充资料：R6m矩形坯连铸机在生产(邯钢)
R6m矩形坯连铸机在生产(邯钢)
R6m矩形坯连铸机在生产(邯钢)
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条