本文首先综述了明渠断面流量测量方法以及明渠断面流速分布的研究现状，在此基础上，指出了目前明渠断面流量测量方面的缺陷和不足。
In this paper, the limitation and shortage of the open channel flow measurement are pointed out based on the review of the flow measurement methods and velocity distribution in open channel.
同时在试验的基础上，推导得植树后断面平均流速减小值和植物坝段床面剪应力的计算公式。
And base on the experiment, calculating formula of cross section mean velocity's reduction after planting and bed shears stress of vegetation dam block are established.
研究还发现，水泵出口断面轴向流速分布均匀度和速度加权平均偏流角也随壁面粗糙度改变而改变。
It is also discovered that the axial velocity distribution and velocity-weighted average swirl Angle at the outlet section of axial-flow pump vary with the changing of wall roughness.
计算分析了波浪入射角、表面流速、隧道断面形式和支撑形式对悬浮隧道动态响应的影响。
The influences of incident Angle of wave, surface flow velocity, shape of tunnel's section and support structures on the dynamic response of an SFT are analyzed.
经过实测资料的分析，得出了呼玛桥水文站桥测断面的垂线流速系数以及桥测流量系数。
According to data analysis of actual measure, this paper obtains perpendicular line current velocity coefficient of measuring section and measuring discharge coefficient on the bridge.
较总流量分析法，仅能给出明渠断面平均流速有所改进。
There is improvement as compared with the method of total flow which only gives the average velocity of transverse profile of open channel.
依据测量所得的掺气浓度与流速资料，采用分段求和的方法得到的断面统计流量与实际流量的误差很小，表明测量结果是可靠的。
On the basis of experimental data of air concentration and velocity, the discharge of each transverse section is got by means of stereometry.
针对圆形烟道流速监测点布置存在的问题，用流体力学理论进行分析、优化，在确定采样断面后，在距采样孔0。
In view of problems existing in velocity of flow monitoring points collocation in circular flue, using hydrodynamics theory to analyze and optimize, one monitoring point at 0.
随着风洞宽高比的减小，断面内中垂线上的气流摩阻速度与自由流速的比值以及受风洞边壁影响的气流厚度均增大。
Both the ratio of friction velocity to free stream wind velocity and the thickness of airflow are subject to the sidewall effect, showing the increase trend with the decreasing aspect ratios.
通过对黄陵庙水文断面垂线流速分布特性的研究，丰富了对天然河流垂线流速分布规律的认识。
The study of vertical velocity distribution at the Huanglingmiao hydrologic section deepens the recognition of vertical velocity distribution in natural river.
本文提出了阻力线性假设，并结合河槽断面的具体情况，对河槽的断面平均流速公式进行了探讨。
This paper proposes a scientific hypothesis that the resistance is linear and suggests a sectional average velocity formula for river flow which reflects the character of river.
藻类的生长速度因各断面的流速、水深和水面宽的不同而不同。
Algal growth rate is different with average velocity, water depth and cross-section width.
较总流量分析法，仅能给出明渠断面平均流速有所改进。
There is improvement as compared with the method of total flow, which only gives the average velocity of transverse profile of open channel.
通过用参比方法对连续监测系统流速测定值进行校准，求出该监测断面的速度场系数。
This can be resolved through calibrating the continuous monitoring system by reference method, and calculating the velocity field coefficient.
本文根据矩形水槽试验，表明：对于整个断面的各垂线流速分布可划分为底部内区、外区和表面区。
Result of test in rectangular sluice shows that vertical velocity distribution profile may be divided into bottom inner, outer and surface zone.
特别是改善了弯道出口断面的水舌厚度和流速横向分布的均匀性，保证了末端挑流消能的稳定性和安全性。
Especially they improved the thickness of curved way water tongue and the uniformity of current velocity which distribute in a cross section, promise the stability and the safety of the end jet flow.
鱼骨坝束窄了河道过水断面，引起坝体两侧水流流速的增大，坝田内流速则大幅度减小；
Alongside the dike, the flow velocity gets larger, and it is on the contrary in the dike field.
影响汊道分流比的主要因素有：两汊的比降、过水断面积、糙率、流速等。
Main factors effecting on flow rate in braided river is gradient of anabranch, area of water, roughness and velocity.
流场分析法不仅可给出明渠的流量，还可给出明渠横断面上的流速分布。
The analysis method of flow field not only can show the discharge in open channel, but also the velocity distribution of its transverse profile.
针对现有明渠流量测量方法的不足，提出一种规则断面明渠流量的自动测量方法-“流速-水位法”。
Directing against the actual situation of steam flow rate measurement, methods and measures for enhancing the accuracy in steam flow rate measurement have been put forward.
并且随着管径的增大，管道断面上管轴中心流速和管壁流速的差值将随之增大。
Besides, as the diameter increases, the velocity difference between pipeline axis and wall will become bigger accordingly.
通过用参比方法对连续监测系统流速测定值进行校准，求出该监测断面的速度场系数。
The research of calibration of two sets of continuous monitoring systems shows that velocity field coefficient is basically constant. The value…
采用多谱勒三相流速仪，在长江干流黄陵庙水文观测断面进行脉动流速观测，获得了不同流量级、不同垂线的脉动流速资料。
Field experiments on fluctuation velocities were carried out at the section Huanglingmiao of stem stream of Yangtze River with an Acoustic Doppler Current Profile (ADCP).
根据不同流型讨论了等面积圆环法确定断面平均流速时所产生的误差。
The error caused by the ring method of equivalent area to measure the mean velocity of the circular pipe is studied by the different now pattern.
测量出水管断面水流压力和三维流速分布，分析常规方法测定断面水流能量误差较大的原因，提出利用五孔探针准确测定断面水流全压分布、积分平均计算断面单位能量的方法。
Pressure and 3-dimensional velocity distributions in the pipe section are measured. The causes of Lange measuring errors of section flow energy in the outlet pipe by conventional method are analyzed.
影响汊道分流比的主要因素有：两汊的比降、过水断面积、糙率、流速等。
Main factors effecting on flow rate in braided river is gardient of anabranch, area of water, roughness and velocity.
新管光滑的表面增加水的流速，故可弥补管断面积减少的缺点。
The smoothness of the new internal surface increases the flow velocity and thereby compensates the reduced cross-section.
新管光滑的表面增加水的流速，故可弥补管断面积减少的缺点。
The smoothness of the new internal surface increases the flow velocity and thereby compensates the reduced cross-section.
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