Journal ArticleDOI
Prediction of the effects of liquid viscosity on interfacial shear stress and frictional pressure drop in vertical upward gas–liquid annular flow
Tohru Fukano,T. Furukawa +1 more
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TLDR
In this paper, the effects of liquid viscosity on the mean liquid film thicknesses, wave heights, and gas-liquid interfacial shear stresses in the vertical-upward co-current annular flow in a 26.0mm inner diameter tube were investigated.About:
This article is published in International Journal of Multiphase Flow.The article was published on 1998-06-01. It has received 121 citations till now. The article focuses on the topics: Pressure drop & Two-phase flow.read more
Citations
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Proceedings ArticleDOI
Development Of New Correlations For Annular Flow
TL;DR: In this paper, the authors focus on the processes occurring in the liquid-gas interface that cause droplet entrainment, addressing also the characterization of these entrained droplets.
Journal ArticleDOI
Prediction of flow distribution of vertical upward co-current adiabatic annular flow in 8 × 8 rod bundle
TL;DR: In this paper, the authors derived gas and liquid velocity profiles from existing adiabatic rod film thickness data and calculated the film thickness on each rod and interfacial shear stress in each sub-channel.
Journal ArticleDOI
Measurement Characteristics of a Novel Microwave Sensor Based on Orthogonal Electrodes Method
TL;DR: Based on the microwave transmission technology, two orthogonal electrodes are cross assembled constructing a 2D electromagnetic detection plane inside OEMS, and the measurement characteristics of water content of OEMS are investigated as mentioned in this paper , and the optimum working frequency band (0.36-0.40 GHz) is determined.
Journal ArticleDOI
Oil-Water flow patterns, holdups and frictional pressure gradients in a vertical pipe under high temperature/pressure conditions
Yuqi Yang,Jixiang Guo,Ren Bo,Zhang Shuai,Ruiying Xiong,Dengshan Zhang,Cao Chang,Zhiyong Liao,Shiling Zhang,Shunkang Fu +9 more
TL;DR: In this paper, the upward flow patterns of oil-water two-phase flow in a 0.02m I.D. stainless steel pipe were examined under high temperatures up to 130°C and high pressures up to 20.51
Journal ArticleDOI
Effects of Liquid Viscosity on the Wave Velocity and Wave Frequency in Horizontal Annular Flow
TL;DR: In this article, an investigation on the liquid holdup, wave velocity, and wave frequency in horizontal annular flow has been conducted through the measurement of liquid holdups using constant electric current method (CECM) sensors.
References
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Journal ArticleDOI
Interfacial drag and film height for vertical annular flow
TL;DR: In this paper, a method for predicting the film height and interfacial friction factor is presented for situations in which the liquid film flow rate is known, and a new measurement method for the height and pressure drop for vertical gas-liquid annular flows is presented.
Journal ArticleDOI
Flow pattern transitions in vertical and upwardly inclined lines
J. Weisman,S.Y. Kang +1 more
TL;DR: In this paper, additional data has been obtained on flow pattern transitions during cocurrent gas-liquid flow in vertical and upwardly inclined lines and these data, together with those previously available in the literature, have enabled the development of improved dimensionless correlations for flow pattern boundaries.
Journal ArticleDOI
Sampling probe studies of the gas core in annular two-phase flow—II: Studies of the effect of phase flow rates on phase and velocity distribution
TL;DR: In this paper, the distribution of liquid droplet mass velocity and local linear velocity for the gas core in air/water annular flow were presented using a sampling/impact probe which was maintained in a position far from the water injector.
Journal ArticleDOI
A physically based correlation for drop size in annular flow
TL;DR: In this paper, the authors derived a correlation for drop size in annular flow based on a mechanistic model and obtained the optimum values of four constants by a fit to measured data over a wide range of gas and liquid flow rates, physical properties and pipe diameter.
Journal ArticleDOI
Measurement of time varying thickness of liquid film flowing with high speed gas flow by a constant electric current method (CECM)
TL;DR: In this paper, a constant electric current method (CECM) is proposed for conductance measurement. But the performance of the CECM is limited due to the fact that the output from the sensor electrode is independent of the location of gas phase, and the sensitivity of detecting the change in the hold-up is higher in the case of thinner film thickness.