void fraction

An experimental investigation for accuracy of measuring void fraction by γ-attenuation technique in two-phase flow

用γ射线衰减技术测量两相流中空泡份额精度的试验研究

Static experiment results demonstrate that the maximum absolute error of void fraction measurement is 6.0%. 4.

静态试验表明，该方法测量空隙率的最大绝对误差为6.0%。

Experiment for the Void Fraction Calibration of a Υ-ray Densitometer Using Two-component-fluid

用双组分流体标定Υ射线密度计的实验研究

Experimental Study of Steam-Water Two Phase Flow Void Fraction Measured by γ-Ray Densitometer under Low Pressure and Low Velocity

用γ射线法测定低压低流速汽-液两相流空泡份额的试验研究

The phase fraction of gas-liquid two-phase flow includes void fraction and phase holdup of liquid mixture.

气液两相流的相份额包括含气率与液相中各分相的含率.

Electrical probes are applied to examine the void fraction in cross-flow zone of the shell-side.

应用电导探针,研究了壳侧各流路对错流区的气液分布状态的影响.

Mockup Tests of Void Fraction in Moderator Cell and Two-phase Thermosiphon Loop of Cold Neutron Source in China Advanced Research Reactor

中国先进研究堆冷中子源冷包含气率及两相热虹吸循环模拟试验研究

Research results show that applying C4D to void fraction measurement of gas-liquid two-phase flow is feasible, and the proposed void fraction measurement method is effective.

研究结果表明，C4D技术应用于气液两相流相含率测量是可行的，所提出的相含率测量新方法是有效的。

According to different optics-dispersion character, threshold segmentation method is proposed to identify gas from the gas-water flow, which make steadfast base for further calculate void fraction.

根据气泡和水对光的反射特性不同，提出采用阈值法识别图像中的气泡和水，从而为进一步计算掺气浓度打下坚实的基础。

Element approach is employed, and the amount of each component holdup is calculated element by element with a proper void fraction model.

将换热器分解成若干微元，选用恰当的空泡数学模型，计算各组分在换热器中的滞留量。

The result shows that the pseudo turbulence level is directly proportional to the void fraction and approaches the potential formula result with increasing particle Reynolds numbers.

该关系式表明伪湍动与空泡率成正比，并随颗粒Reynolds数的增大而趋近势流结果。

Prediction of Subcooled-boiling Void Fraction by Means of a Model Based on a Low Flow-rate Net Vapor Generation ( NVG) Point

低流速净蒸汽产生点模型预测过冷沸腾空泡率环形狭缝中过冷沸腾空泡率的研究

The change regularities on void fraction and density of powder material were revealed mathematically.

同时,运用数学的方法揭示了粉体的空隙率和粉体密度的变化规律.

In the tests, the system pressure, temperature, void fraction and total loss of water were studied.

在实验中研究了系统压力、温度、空泡份额的变化和总失水量。

The Saha model and Levy model cannot be used to determine the void fraction for the calculation of pressure drop reliably.

由于目前普遍采用的Saha模型、Levy模型难以得出准确的低流速过冷沸腾真实含汽率与空泡率预测结果，应用于低流速过冷沸腾压降计算时会产生较大偏差。

In order to determine the void fraction in neutron moderator, the circulation ability of the two-phase hydrogen thermal siphon system, and the structure of components of the CNS, the mockup test was performed using Freon-113 as working fluid.

针对概念设计中采用的两相虹吸氢回路系统，使用氟里昂113进行了1：1的模化试验研究，确定了中子慢化室含气率、热虹吸系统循环能力及各部件的初步结构形式和尺寸。

Void fraction and flow regime determination by optical probe for boiling two-phase flow in a tube subchannel

光纤探头测量管外沸腾两相流空泡率和流型的研究

: Air-water two-phase flow void fraction and counter-current experiments in annular channel are performed in a two-phase flow test loop at Japan Atomic Energy Research Institute, flow structure is also observed.

在日本原子力研究所的一个两相流试验台架上，进行了环形流道空气-水两相流空泡份额和逆向流试验，观察了其流型。