Churn flow and annular flow are common flow patterns encountered in gas-liquid systems through conduits.
对垂直同心环形管内上升气液团状流向环状流的转换进行了研究。
The result shows that thecorrugation and annular flow field is closely related with the shape of flow channel.
结果表明，波纹环空流场特性与流道的形状有密切关系。
With the variation of flow rates and qualities, the flow patterns can be divided into bubbly flow, plug flow, stratified-wavy flow, intermittent flow and annular flow.
随着流量和干度的变化，流型可划分为泡状流、塞状流、分层波状流、间歇流以及环状流。
The model assumes that forced convection and nucleate boiling coexist in the annular flow regime.
该模型认为环状流区域同时存在强制对流与核态沸腾两种换热方式。
Annular histogram method was introduced to represent heterogeneous flow features with taking concentration spatial distribution and heterogeneity information into consideration.
采用环状直方图，从浓度空间分布和信息量两个方面对流动非均匀性进行了描述。
Considering gravity, interfacial shear stress, surface tension and interfacial thermal resistance, the analysis model for annular flow condensation heat transfer in microtube was presented.
本文提出了微圆管内环状流凝结换热的分析模型，考虑了重力、汽液界面剪切力、表面张力以及界面凝结热阻的作用。
This paper studies the flow law of the laminar helical flow of the power law fluid and Billgham fluid in eccentric annular space and the determination of the flow state.
本文全面地研究了幂律流体和宾汉流体在偏心环空中层流螺旋流的流动规律与流动状态的判别。
In this paper, the prediction of void fraction and pressure drop for upward gas-liquid annular flow in a vertical annulus is studied.
对垂直同心环形管内上升气液环状流的截面含气率及压降预测进行了研究。
The expressions of velocity and flow rate of helical flow of a general viscous fluid has been obtained by using helical flow in a vertical annular space as an idealized flow model.
本文用垂直同轴圆柱环形空间内的螺旋流流场作为钻井井内流体流场的理想化模型，得出了任意纯粘性流体螺旋流流场的速度及排量表达式。
Turbulent reactive flow in a short annular combustor is simulated by changing the number and location of nozzle and swirler in combustor dome.
通过改变燃烧室头部喷嘴、旋流器的数目和位置，对短环形流燃烧室内有较强回流的湍流旋流流动进行了模拟。
In the annular gap scrubber, there exists complicated three-dimensional compressible flow associated with the two phase flow and heat transfer between gas and water particle.
环缝洗涤器内是一个高速可压缩三维流动过程，并伴随有高炉煤气和雾化水滴的两相流动传热。
Many problems in petroleum and chemical industry can be reduced to the solutions of the helical flow of Non-Newtonian fluid in eccentric annular space.
石油和化工中许多问题需要求解非牛顿流体偏心环空螺旋流。
A theoretical analysis was carried out for evaporative heat transfer of annular two phase flow of liquid film and high velocity air in vertically heated tubes.
通过理论分析，研究了竖直传热管内降膜-高速空气环状两相流的蒸发换热特性。
The accuracy of flow pattern identification of stratified flow, annular flow, core flow and homogeneous flow is more than 95% and the speed of flow pattern identification is less than 0.3s.
对于层状流、核心流、环状流、均相流等流型，流型辨识的准确率高于95%，辨识一个流型所用的时间小于0.3秒。
The flow volume per stroke of each chamber is determined by the lateral stroke of the entire piston assembly and also by the annular areas of the proximal and distal ends of the piston.
各腔室在一个行程下的流体积由整个活塞组件的侧向行程和活塞的近端和远端的环形区域决定。
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。
The suspended sediment in the south passage at the Yangtze river estuary was used to conduct experiment in the two-way annular flume about sediment concentration, salinity velocity and flow velocity.
选用长江口南槽悬沙，在双向环形水槽中进行盐度、含沙量、流速等不同条件下组合实验。
The efficiency of twin-tangential annular flow gas distributor was determined by structures of baffles and sleeves.
双切向环流气体分布器性能的优劣与导流板和套筒结构的密切相关。
A first inwardly extending annular shoulder is provided between the sealable opening and the bottom opening, defining a flow passage along a longitudinal axis of the housing.
在可密封的开口和底部开口之间设置一第一向内延伸的环形肩部，该环形肩部沿着外壳的纵轴线限定出一流通通道。
In air and mist drilling, annular carries are the typical of gas, liquid and solid multiphase flow, and its mechanism and principles are very complicated.
在空气雾化钻井中，井眼环空携岩流动是一种典型的气、液、固多相流动，其机理和规律十分复杂。
The effects of stator and rotor wall roughness on the dynamic coefficients of the eccentric rotor in large gap annular flow have been investigated with numerical method.
研究结果表明：静子和转子壁面粗糙度对大间隙环流中偏心转子动特性系数有较大影响。
The method is presented to simulate pressure losses and flow velocities in skewed narrow annular geometries for laminar, transition and turbulent non-Newtonian flow.
提出了关于变偏心度环空中计算非牛顿流体在层流、过渡流及紊流状态下压降、流速的方法；给出了流场特性分析及数值模拟结果。
A annular flow passage is divided by isosceles-trapezoid-like baffle blocks, suction inlets and outlets are provided on both sides.
环形流道由类似等腰梯形的隔板挡块分割开来，两边分设吸入口和排出口。
Based on the theory of annular gas-liquid two-phase flow, a model to calculate gas-cutting fluid flow in wellbore is established, and meanwhile a numerical solution to the model is given.
以环空气液两相流动为理论基础，建立了井筒气侵流动计算模型，同时给出了计算模型的数值求解方法。
Results show that with the same oil amount, the new oil supply style needs a lower gas velocity in the inlet to shape the annular flow, and the oil drops will not appear in air flow.
在相同供油量情况下，新供油方式形成环状流需要的入口气相速度低，且气速增大时一般不会形成夹带液滴，能够实现较好的环状流流型。
The flicked liquid metal is retained by the annular and tapered cushioning and retaining ring to drop on the metal collecting tray and flow into a metal cooling trough for aggregation.
甩出的液态金属被环锥形缓冲阻挡圈阻挡，落入金属收集盘并流入金属冷却槽聚集。
The results show that the particle size has a core-annular flow pattern in radial position and solid volume fraction is much denser at the bottom of the riser.
结果表明：颗粒在管内呈环—核流动结构，固含率在轴向上呈“上稀下浓”的分布特征。
An indented profile creating a larger annular area causes the fluid flow rate to drop and allows debris to drop into a basket or receptacle located at the base of the tool.
具有较大环形面积的凹纹型面使流体流量下降，并使碎片落入位于工具底部的篮或接受器内。
A flow-concentrating-sampling annular water detector with 5-parameter consists of circuits of temperature, pressure, magnetic locator, telemetry, as well as 2 cartridges of flow rate and water cut.
新型取样式五参数过环空找水仪由温度、压力、磁定位、遥测电路和流量、持水率2个功能短节组成，采用流体取样室开伞集流、收伞取样的方式测量持水率。
A flow-concentrating-sampling annular water detector with 5-parameter consists of circuits of temperature, pressure, magnetic locator, telemetry, as well as 2 cartridges of flow rate and water cut.
新型取样式五参数过环空找水仪由温度、压力、磁定位、遥测电路和流量、持水率2个功能短节组成，采用流体取样室开伞集流、收伞取样的方式测量持水率。
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