Flying saw is the important equipment for pipe flow production line. It not only controls the accuracy of pipe length, but also restricts the production speed and cut surface quality.
飞锯机是管材连续自动生产线上的关键设备，它不仅控制管材的定尺切断精度，同时制约着生产线的生产速度和切口质量。
The turbulent pipe flow was visualized by solving the concentration equation.
通过求解浓度方程得到了浓度场数据，并对流动进行了显示。
Slug flow is one of the most common flow patterns in a hilly multiphase pipe flow.
在起伏多相管流中常出现段塞流。
Water flowing in macropores is called pipe flow, and it is one kind of preferential flow.
大孔隙中运动的水流称为管流，管流是优先流的一种形式。
The computation of streaming electrification in turbulent oil pipe flow is studied in this paper.
对紊流条件下输油管道内油流静电带电的计算进行了研究。
The design method of irrigation pipe flow meter is presented and high precise sensor is chosen.
给出智能灌溉管道流量计的设计方法，以及高精度传感器的选择。
Theoretical and experimental study on the pipe flow with sudden enlargement pipe is made in this paper.
从理论和实验两个方面分析了突扩管流动。
An experimental instrument for researching pipe flow is used to study thixotropy of waxy oil flowing in pipeline.
在管流试验装置上研究了含蜡原油的触变性，对原有的触变性描述模式进行了改进。
In this paper the thermal drag and entropy generation of a heated pipe flow are analysed by means of numerical computation.
本文利用数值计算方法，对圆管加热流动的热阻力和熵产进行了综合分析研究。
The experimental research on the pipe flow under the influence of high intensity acoustic field is presented in this article.
用实验手段研究强声场对管道内气体流动的影响。
A pipe flow test apparatus, which is used to research the characteristics of non Newtonian fluids, was designed and constructed.
介绍了管流实验装置的设计及组成，并利用该实验装置对胜利原油的非牛顿管流特性进行了初步研究。
The traditional quasi - steady friction model can not be accurately described the real transient problems in transient pipe flow.
在液体管道瞬变流计算中，传统的拟恒定摩阻模型不能准确描述瞬变流的真实物理现象。
The flow of oil and sand mixture in horizontal wellbore is a special flow model of solid-liquid two phase flow in pipe flow actually.
含砂原油在水平井水平段中的流动是液固两相沉降性浆体水平管流的一种特殊形式。
Laboratory simulating studies are made on shear rate of pipe flow for purpose of realizing long distance transportation of additive crude oil.
为了使加降凝剂的原油实现长距离的管输，就管流剪切速率进行了实验室模拟研究。
The average shear rate obtained with this method is a more reasonable measurement of the average shear history of fluid in turbulent pipe flow.
对于湍流，按本方法计算的平均剪切率能合理地度量流体的平均剪切历史。
Comparative analysis under the same conditions in the micro-tube and macro-size pipe flow differences, come to flow advantage of micro-size pipe.
对比分析了在同等条件下微尺寸圆管和宏观尺寸圆管内流动的差别，得出微尺寸圆管内流动的优势。
The linear loss of sewage flowing in pipe is approximately equal to that of water pipe flow. So it's feasible to accept the method in use at present.
污水在管道内流动的沿程损失与清水流动时近乎相等，所以目前在管道水力计算中所采用的处理方法是可行的。
The traditional quasi-steady friction models are proved to be inaccurate in transient pipe flow because they underestimate friction losses in transients.
在液体管道瞬变流计算中，传统的拟恒定摩阻模型不能准确描述瞬变流的真实物理现象。
The structure parameters and resistance characteristics of spiral pipe flow generator which generates spiral flow in circle pipe were analyzed and investigated.
对用于产生螺旋管流的圆管螺旋流起旋器的结构参数进行了分析，并对其阻力特性进行了理论分析和试验研究。
Technological calculation in a hilly multiphase pipe flow includes flow pattern prediction , liquid holdup and pressure drop calculation and temperature prediction.
多相管路的工艺计算包括流型判别，持液率和压降、温降的计算。
Mingling of air into water would not only affect the hydro-dynamical characteristics of pipe flow, but also cause vibration noise, and even abnormal damages in pipes.
水中掺入空气不但会影响管道的水力特性，同时是造成管道振动、噪音，甚至异常破坏的主要原因。
Valves should be installed in the (stem) vertical position with the pipe flow horizontal only. For installations other than this, please consult factory when ordering.
阀门应该只能安装在水平流向的管线上，其阀杆应该垂直向上。如果需要其它方式的安装，请在订购阀门时咨询工厂。
According to the requirement of the pasty propellant rocket engine design and pasty propellant pipe flow experiment, a new type of pasty propellant supply system is proposed.
依据膏体推进剂火箭发动机设计和膏体推进剂管道流动实验需求，提出了一种新型膏体推进剂供给系统方案。
The factors on the turbulent entrance length were analysed, based on the variable Recr, a new empirical formula was developed for the turbulent entrance length in a pipe flow.
详细分析了管流湍流人口长度的影响因素，提出以临界雷诺数为基础变量的新湍流入口长度经验公式。
In the beginning of this paper, the current status and achievements in the research field of Pelton turbine are introduced respectively by means of pipe flow, free jet and bucket flow.
本文在首先介绍了冲击式水轮机内部流动中管内流、自由射流以及水斗绕流等方面的研究现状和进展。
The appearing and lasting time of pipe flow is related to the rainfall intensity, duration of rainfall, the previous water content of soil and the location of soil pipe in soil section.
管流出现的时间、管流历时与降雨强度、降雨历时、土壤前期水分含量和土管所处的土壤剖面位置等因素有关。
Numerical calculations for sudden expansion pipe flow have shown that the secondary pressure correction method can clearly accelerate convergence, improve accuracy and save C. P. U time.
对突扩管道流动的数值表明，该方法可以明显地加快收敛速度，提高计算精度和节省计算机时。
The anisotropy invariant map was also introduced briefly. The effect of the distance away from the wall and the Reynolds number on the turbulence structure in a pipe flow was also analysed.
介绍了湍流不变量图在圆管湍流研究中的应用，分析了离壁距离和雷诺数对管流湍流结构的影响。
According to the relationship between energy dissipation rate and shear rate, average shear rate to evaluate the shear action for annular pipe flow is obtained by using energy dissipation rate.
根据能量耗散率与剪切率的关系，采用体积平均能量耗散率计算环空管流的平均剪切率，以此来评价环空管流的剪切作用。
According to the relationship between energy dissipation rate and shear rate, average shear rate to evaluate the shear action for annular pipe flow is obtained by using energy dissipation rate.
根据能量耗散率与剪切率的关系，采用体积平均能量耗散率计算环空管流的平均剪切率，以此来评价环空管流的剪切作用。
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