在起伏多相管流中常出现段塞流。
Slug flow is one of the most common flow patterns in a hilly multiphase pipe flow.
本文将广义有限元法用于求解不可压缩管流。
A generalized finite element method (GFEM) is presented for the calculation of incompressible flow in nozzle.
压降计算是油水两相水平管流的另一个重要的研究课题。
Pressure drop is another important disquisitive branching in the investigation of oil-water two-phase flow.
本文采用数值计算方法分析了扩容两相流动的管流特性。
The Characteristic of two-phase fluid flashing flow in tube is analysed in this paper by means of numerical calculation.
大孔隙中运动的水流称为管流，管流是优先流的一种形式。
Water flowing in macropores is called pipe flow, and it is one kind of preferential flow.
采用理想流体一元管流理论，建立了引射器的理论计算方法。
The Calculating methods of the ejector were presented using the theoretical base of One-dimensional ideal flow.
应用该系统详细测量了单孔板和双孔板管流的轴向和径向平均速度。
Detailed measurements were made in a pipe flow for single and double orifice cases by using: this system.
颗粒滞留效应，将导致在垂直管流中物料的当地浓度大于输送浓度。
In a vertical pipe, actual concentration of materials under delivery is greater than the one at its outlet due to lagging effect.
对提出的改造方案进行数值模拟分析，并优化其管流特性的相关参数。
Numerical analysis is also carried for the alternation schemes and optimization of pipe flow parameters are done as well.
在实验的基础上，对降阻剂在多相管流中的作用机理进行深入的研究。
Experimental study has been thoroughly performed for affecting mechanism using drag reducing agents in multiphase pipelines.
随着海洋、沙漠、浅海油田的开发，对多相管流技术的需求日趋紧迫。
With the oil field's development in the seas, deserts and shallow seas, the requirement for multiphase pipeline flow technology is becoming more and more urgent.
分析表明，管流实验装置测试结果可靠，可用于测定原油的管流特性。
It is shown that the test results are reliable. The MLTA is suitable for the measurement of the characteristics of the crude oil in pipelines.
结果表明：管流的出现较渗流出现时间迟 ，但其结束的时间较渗流早。
The peak value of infiltration flow and pipe flow does not appear at the same time.
在油气两相管流中，压降和持液率的计算在工艺计算中占有重要的地位。
In two-phase oil and gas flow, the calculation of pressure drop and liquid holdup plays an important rule in technological calculation.
在长距离的加剂常温输送管道中，加剂原油必然经受长时间的管流剪切。
In long distance pipeline transportation with depressant at atmospheric temperature, depressant crude oil is subjected to long terms of pipeline flow shear inevitably.
文章侧重讨论螺旋管流输移固粒的特征机理与起旋器效率的测试与计算方法。
The characters and mechanism of the transport way, and the calculation and measurement method of the efficiency of the pipe cyclone are presented.
对管流试验装置测量参数的不确定性进行分析，并研究了试验装置的重复性。
The uncertainty of the parameters measured on the MLTA was analyzed and the repeatability of the MLTA was studied.
对管流、嘴流、渗流的协调计算及蒸汽流过节流喷嘴的临界流动特性进行了研究。
Coordination calculation for the flow in pipe, nozzle and reservoir, critical flow characteristics through the throttling jet are studied.
该研究对于工程上的振荡管流以及生物振荡管流将有一定的理论意义与应用前景。
This research has some theoretical significance and using foreground on engineering, especially in studying oscillating flow in bio-tubes.
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。
Laboratory simulating studies are made on shear rate of pipe flow for purpose of realizing long distance transportation of additive crude oil.
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。
An experimental instrument for researching pipe flow is used to study thixotropy of waxy oil flowing in pipeline.
建立供水管网试验模型的目的是便于研究真实城市供水管网中管流的水力特性和水质情况。
The objective of developing an experimental model of the water distribution network is to study the hydraulic properties and water quality of the actual network.
主要分析了管流法、落球法、圆盘法的测量原理，并对各种测量方法及应用范围予以介绍。
Mainly analyzes measurement principles of tube-flowing, ball-dropping, plate-rotating, and also introduces measurement methods and application situations.
在调研了大量关于宾汉流体偏心环状管流的文献之后，发现大都是近似计算而不具有普适性。
Computation of eccentric annular flowing on Bingham-fluid in pipe is approximate in many literatures and is not of universality.
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。
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.
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。
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.
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。
A pipe flow test apparatus, which is used to research the characteristics of non Newtonian fluids, was designed and constructed.
结果显示：涡管流函数是时间的周期函数，并被表征为一系列在涡核内均匀分布螺旋涡丝流函数的叠加。
The result showed that the stream function of vortex tube was expressed as the superposition of the stream functions of vortex filament within the vortex core.
结果显示：涡管流函数是时间的周期函数，并被表征为一系列在涡核内均匀分布螺旋涡丝流函数的叠加。
The result showed that the stream function of vortex tube was expressed as the superposition of the stream functions of vortex filament within the vortex core.
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