The surfactant has obvious effect on the transition from stratified wavy flow to annular flow.
结果表明，表面活性剂的添加明显影响波状分层流向环状流型的转换；
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。
In annular flow the penetrating effect of stream A makes the void fraction same besides a baffle.
在环状流下，A流路的贯通作用使折流板前后对应区域的含气率基本一致；
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。
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。
Research on the circumferential distribution of wall temperature for horizontal evaporating tubes under annular flow;
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 。
Its basic principle is that there is a quite steady flow state of annular flow in the flow pattern of gas-liquid two-phase flow.
模型是建立在压力能量消耗率最小的原理上的，其基本原理是：在气-液两相流的流型中，环状流具有相当稳定的流动状态。
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。
Comparison of simulation results with experimental data implies that present model can well describe upward gas-liquid annular flow.
模拟结果与实验结果的对比表明本模型适于这种流动的计算。
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 fractal dimension of the fluctuations are lower than 1.5 in all flow regimes besides the annular flow with great gas superficial velocity.
实验发现环状流区高气速时的压差波动分维数大于1.5 ，在其它流型内都小于1.5。
Building around the atrium add up to Annular flow as the main office functions on the three steps back and created multiple visual experience and office space.
建筑在顺应山势的三阶退台之上围绕中庭增加了环形流线作为主要的办公功能，创造了多元的视觉体验及办公场所。
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。
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 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。
According to the principle of the fluid mechanics, any system all tend towards to minimum steady state of energy, so the energy in steady flow of annular flow will be minimum.
根据流体力学的原理，任何系统都趋向于处在能量最小的稳定状态，所以在环状流的稳定流动状态下具有的能量应该最小。
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。
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。
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 field of double-row annular cascades of hydraulic turbines is studied by means of digital analysis in combination with model tests.
采用数值分析与模型实验相结合的方法，对水轮机导水部件双列环列叶栅流场进行了分析研究。
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。
This paper studies power law non-Newtonian fluid relative flow in an annular pipe.
本文研究幂律非牛顿流体在环管内的不定常旋转流。
The three-dimensional flow field of annular combustor for aero-derivative gas turbine burning gas fuel was numerically simulated.
采用数值模拟方法对燃用天然气的某型航改燃气轮机环形燃烧室进行三维流场分析。
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。
Three dimensional annular seal flow field was simulated quasi-steadily with computational fluid dynamics (CFD) method in a rotating reference frame. The Rotordynamic coefficients were calculated.
应用计算流体力学(CFD)方法对转动坐标系下的三维环形密封流场进行了准稳态数值模拟，在此基础上进行了转子动力系数的计算。
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。
The void fraction of annular two-phase flow inside cylinder is analyzed.
对圆管内环状两相流的空泡份额进行了分析。
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。
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。
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