利用激光测速技术测量了平板水平放置时气泡流最外缘处的水平速度及厚度。
The horizontal velocity at the outermost edge and thickness of bubbly flow are measured by laser Doppler velocity technique.
由以上结果得出的压降计算方法能比较准确地确定气液两相气泡流的压力损失。
The pressure drop calculation method obtained from above results can be used to accurately determine the pressure loss of two-phase gas bubble flow.
本文通过几年来大量的实验分析和现场试验，总结出气水两相在井筒内主要存在气泡流、柱塞流、环膜流、霉状流。
Based on a lot of experimental analysis and field tests, the states of bubble flow, plunger flow, ring film flow, fog flow lied in gas-water phases in wellbore are summarized.
管道中的液体在一定的条件下，部分液体气化成气体状态，产生气泡，形成气液两相流这就是闪蒸过程。
The liquid in the pipeline under certain conditions and partially vaporizes into gas state, bubble, formation of gas-liquid two-phase flow which is the process of flash.
首先，对真实气泡在剪切流场中的升力进行了实验研究。
The experimental study on lift forces on transformable bubbles in shearliquid has been performed.
通过对气泡在流场中的运动和受力分析，给出了用以封闭模型的粘性应力、脉动应力、相间动量交换项的表达式。
Analysis of bubble motion in the flow field was used to develop relations for the viscous stresses, turbulent stresses, and interfacial momentum exchange to close the model.
絮体与微气泡间的相对尺度和流态的不同会有不同的碰撞机制，相应的动力学方程式与絮体的分形维数也有不同的关系。
The different collision mechanisms and relations to fractal dimensions were shown in flotation processes with different relative sizes between flocs and micro-bubbles and their movement conditions.
本文在蠕动流近似的基础上分析计算了具有不同介电常数工质的气泡在外电场力作用下的受力状况。
Based on creeping flow approximation, electric stress acting on bubble with different dielectric permittivity is analyzed and calculated in this paper.
分析预测了静止流场中单个气泡的变形、上升规律和静止液体中两个气泡的合并。
Based on the numerical computations, the deformation and moving behavior of a single bubble and the coalescence of two bubbles in a still flow field are analyzed and predicted.
狭缝两相流强化传热的主导传热机理是受压变形气泡底部的微液膜蒸发机理。
The main heat transfer mechanism of the above-cited heat transfer is based on the micro-liquid film evaporation at the bottom of pressured and deformed gas bubbles.
纵横比为2.0时，气泡羽流的顶端的运动形态及结构极不稳定。
The pattern and structure in the upper part of bubble plume is instability when the aspect ratio of 2.0.
本文围绕掺气多相流中气泡的图像测量方法进行了系统而深入的理论和实验研究。
Focusing on image measurement method for bubble in multiphase flow, theoretical and experimental studies have been made in this paper systematically and comprehensively.
经典成核理论假设气泡核的形成是在静态条件下发生的，它没有反映在口模流场中动态因素(拉伸、剪切等)对气泡成核的影响。
Because classical nucleation theory supposes that bubble formation is occurred under static state, it doesn't reflect the effects of dynamic factors on bubble nucleation, such as shear and elongation.
根据气泡的尺寸划分气相，采用时间平均法建立了描述垂直管道内层流泡状流运动的多流体模型。
A more detailed multi fluid model was developed with the gas phase divided into several groups according to bubble size to describe bubbly flow in a vertical pipe.
对静止环境中的圆形气泡羽流流场进行数值模拟，得出了气泡羽流的流速场和浓度场。
Numerical simulation of round bubble plumes in still environment is performed to obtain the distribution of velocity and gas holdup.
研究了利用陶瓷微孔膜管在高速剪切流剪切作用下形成微气泡的条件，流体物性对气泡粒径分布的影响。
This condition of using ceramic microporous tube to produce microbubbles by high-speed cross-flow and the effect of Liquid properties on the initial bubble size distribution were studied.
新型螺杆对气泡破碎和分离作用比收敛流道更有效。
New type screw is more effective for gas breaking up and separating.
采用气-液两相流两方程湍流模型，结合混合有限分析法，对静止环境中气泡射流进行数值模拟和分析。
A two phase turbulence model and hybrid finite analytic method (HFAM) are used to predict the behavior of bubbly jet in static environment.
本文对交叉布置的两根丝产生氢气泡的方法显示流谱作了探索，并对旋转圆柱绕流的变化过程进行了流谱显示。
In this paper, the variable processes of the steady flow moving around rotating circular cylinder are visualized by the hydrogen bubble method with two cross wires.
两相流流型分类的直观物理几何意义在于气泡空间尺度（相对于流道水力学当量直径）及其分布。
The flow regime of two-phase flow is straightly and physically charaterized by the size of gas bubbles relating to pipe diameter and the distribution of gas bubbles.
纵横比为1.5时，气泡羽流中部的运动形态及结构极不稳定；
The pattern and structure in the middle part of bubble plume is instability when the aspect ratio of 1.5;
对不同空气旋流强度下气泡雾化喷嘴出口下游喷雾流场特性及燃烧特行进行了诊断与分析。
Effects of air swirl intensity on atomization and combustion performance of effervescent atomized spray were investigated under different conditions.
通过数值计算方法，模拟回转体在水下的航行，分析回转体周围流场、压强及其壁面上阻力的分布，并根据计算结果为该回转体设计了有效的微气泡减阻方案。
The flow field surrounding the revolving object, pressure and resistance distribution on its wall were calculated in order to design a micro-bubble reducing resistance scheme for the revolving object.
通过对气泡在流场中的运动和受力分析，给出了用以封闭模型的粘性应力、脉动应力、相间动量交换项的表达式。
Analysis of bubble motion in the flow field was used to develop relations for the viscous stresses, turbulent stresses, and interfacial momentum exchange to close...
从两相流的角度出发，将泡沫压裂液的气相处理成气泡相并建立两相欧拉颗粒流模型来研究泡沫压裂液的流变性。
The rheology mechanism of foam fracturing fluid was studied by Eulerian-Eulerian two-phase fluid method with the gas phase being treated as 'granular'.
计算采用燃气泡物理模型，通过水流场和气流场的耦合计算模拟整个流场的形态。
It is based on the physical model of exhausted gas bubble and numerically simulates the entire flow field by coupling calculation of the water field and gas field.
通过计算套管中注流的能量分散强度，得出了套管中弥散微小气泡的最大尺寸，并采用伯努利方程分析了套管中注流的压力分布。
The maximum size of the bubbles was obtained through calculating the energy dissipation rate of liquid flow in the shroud.
不同尺寸气泡的运动和受力不同。当气泡尺寸分布范围较大时，不宜采用双流体模型描述泡状流。
The commonly used two fluid models are not suitable for bubbly flow with non uniform bubble sizes.
不同尺寸气泡的运动和受力不同。当气泡尺寸分布范围较大时，不宜采用双流体模型描述泡状流。
The commonly used two fluid models are not suitable for bubbly flow with non uniform bubble sizes.
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