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1)  coal-water two-phase flow
煤水两相流
1.
Performance change of head, efficiency, power and cavitation about slurry pump are studied when handling coal-water two-phase flow with varied concentration and size.
研究了泥浆泵泵送不同浓度与粒度的煤水两相流时扬程、效率以及功率与汽蚀性能的变化 ,并考虑了通气对泵性能的影响。
2)  water-air two-phase flow
水气两相流
1.
Numerical simulation of water-air two-phase flow with free surface in long tunnel
长距离无压引水隧洞水气两相流数值模拟
2.
The two-dimension water-air two-phase flow model to describe the operating principle in MHD oil separation is built in this paper.
通过构建二维的水气两相流模型,采用VOF方法,针对磁流体(MHD)海面浮油分离回收装置中磁流体通道内部流动界面在电磁力作用下的变化过程,进行了数值分析,其计算结果与实验测量值基本吻合。
3.
Based on volumn of fluid(VOF) methodt,he k-ε turbulence model was used to simulate the 3D water-air two-phase flow for free-flow tunnel.
运用基于流体体积(VOF)法的三维k-ε双方程紊流模型模拟了无压引水隧洞水气两相流紊流流场,近壁面采用考虑糙率影响的壁函数法进行处理。
3)  oil-water two-phase flow
油水两相流
1.
Flow regime identification of oil-water two-phase flow based on HHT and SVM;
基于Hilbert-Huang变换和支持向量机的油水两相流流型识别
2.
Studies of slippage characteristics in horizontal coriolis flowmeter for oil-water two-phase flow;
水平放置的Coriolis流量计中油水两相流滑脱特性研究
3.
Chaotic attractor morphological characteristics of oil-water two-phase flow pattern;
油水两相流流型混沌吸引子形态特性
4)  oil-water-phase flow
油水两相流
1.
In this paper, a numerical well test method is presented to study the influnce of different relative permeability curves on the well test curve, PEBI grid is used to discretize control equations of oil-water-phase flow in FEBI grid, which couples the wellbore storage and skin effect into account.
用数值试井方法研究了不同相渗曲线对试井曲线的影响,采用PEBI网格技术,给出了在PEBI网格下油水两相流动控制方程的离散形式,并耦合了井筒存储和表皮系数公式,得到了压力降落数值试井问题的产量模型。
2.
In this paper,a numerical well test method is presented to study the inter-well interference effect on the well test curve,which used PEBI grid and gave the discrete control equations of oil-water-phase flow.
本文用数值试井方法研究了井间干扰对试井曲线的影响,采用PEB I网格技术,给出了在PEB I网格下油水两相流动控制方程的离散形式,并耦合了井筒存储和表皮系数公式,得到了压力降落数值试井问题的产量模型。
5)  oil/water two-phase flow
油水两相流
1.
Application of chaotic recurrence analysis for identification of oil/water two-phase flow patterns;
混沌递归分析在油水两相流流型识别中的应用
2.
Characterization of oil/water two-phase flow patterns in vertical upward pipes based on symbolic time series analysis;
利用符号时间序列分析法表征垂直上升管中油水两相流流型
3.
Soft measurement method of phase volume fraction for oil/water two-phase flow;
油水两相流相含率的软测量方法
6)  Oil-Water Two Phase Flow
油水两相流
1.
Research Progress on the Oil-Water Two Phase Flow in Horizontal Pipelines;
水平管中油水两相流动研究进展
2.
Pressure gradient model for the development of oil-water two phase flow in horizontal pipelines abroad;
国外水平管内油水两相流压降模型研究进展
3.
Aimed at the nonlinear and non-stationary characteristics of conductance fluctuation signals,the characteristics of oil-water two phase flow regimes in vertical upward flow pipes was studied by using the statistical method,wavelet packet decomposition and chaotic time series analysis.
油水两相流的流型影响着流动参数的准确测量以及两相流系统的运行特性。
补充资料:传热学:两相流换热
两相流换热:
自然界中的物质有3种形态﹕固相﹑液相和气相。两相物质共存的流动称为两相流。两相流与管道壁面之间的传热过程称为两相流换热﹐它实际上也是一种对流换热。在工业生產中﹐有各种各样的两相流和两相流换热。例如﹐在化学工业中的流化床内的流动和换热﹐用管道输送粉状和粒状固相物质时的流动和换热﹐气-液(或汽-液)两相流换热等。其中汽-液两相流换热得到广泛而深入的研究﹐因为它是生產中广为使用的蒸汽锅炉﹑蒸汽冷凝设备和核反应堆中传热计算的重要基础知识。两相流换热已发展成为传热学的一个重要分支。
         两相流换热与单相流换热的主要区别在於两相分界面的形状对流型和换热过程有重要影响﹐而相分界面的形状又随著含汽率﹑流速和管道放置的方位等条件的变化而改变。例如对於竖管的两相流传热就有4种流态(见图 竖管内两相流换热示意图 )。泡状流﹕当含汽率不大时﹐在连续液体中均匀分布著许多大小不同的小汽泡。块状流﹕当含汽率增高到某一数值时﹐许多小汽泡就汇集成为一个块状的大汽泡﹐其直径接近管道的内径。在大汽泡之间的液体中含有一些均布的小汽泡。环状液膜流﹕当含汽率增高到很高时﹐液相变成沿管壁流动的环状液膜﹐而汽相则居中流动﹐少量液相以细小雾状液珠悬浮在汽相中。雾状流﹕当管壁上的环状液膜被全部蒸发时﹐管内就充满著悬浮雾滴。
         进行两相流换热计算时﹐必须根据不同的流型和含汽率的高低﹐引用相应的经验公式。常见的两相流换热有沸腾换热和凝结换热。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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