Journal ArticleDOI
Effect of tube diameter on flooding
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In this article, the effect of tube diameter on the mechanism of flooding in vertical gas-liquid countercurrent annular flow was investigated. But the results indicated that the mechanism was qualitatively different in the small and the large diameter test sections.About:
This article is published in International Journal of Multiphase Flow.The article was published on 2001-05-01. It has received 56 citations till now.read more
Citations
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Journal Article
On Axial Coherence of Interfacial Waves in Countercurrent Flow (R&D Note)
TL;DR: In this paper, the authors measured the instantaneous wall shear stress using an electrochemical method just below the liquid feed, as well as just above the liquid withdrawal point, and found that in all instances of countercurrent flow, including conditions along the flooding curve, the time-averaged wall stress was directed upward indicating that the velocity near the wall was downward.
Journal ArticleDOI
Research on the mechanism of the influence of flooding on the killing of empty wells
TL;DR: Based on the principle of flooding formation and the basic tenets of flooding correlation experiment and dynamic replacement method, the authors incorporated the kill fluid viscosity, surface tension, droplet diameter, inclination angle, drill pipe joint outer diameter, and drill pipe eccentricity into the calculation range and established a new mathematical model suitable for dynamic replacement kill.
Journal ArticleDOI
Effect of air inlet geometry on flooding in a large diameter vertical tube
Isaac Choutapalli,Karen Vierow +1 more
TL;DR: In this article, the effect of air inlet geometry on flooding during air-water countercurrent flow in a large diameter vertical tube is studied experimentally, and the results show that the axial velocity decays much faster with a multi-hole inlet as compared to the single tube inlet and thus requires a greater air flow rate to induce flooding.
Journal ArticleDOI
The Effects of Gap Size on Flooding in Vertical Narrow Rectangular Channels
Xi Chuan Li,Zhong Ning Sun +1 more
TL;DR: In this article, the authors investigated the flow characteristics and the tendency of pressure drop in vertical narrow rectangular channels and found that the maximum pressure drop appeared at the completed carrying up of flooding and the onset of flooding in conventional channels, and the gas velocity required for flooding increases as the gap size increases at the same liquid flow rate.
Journal ArticleDOI
Axisymmetric laminar flow of two-phase medium inside the system of two coaxial pipes
Igor Kuzmenko,Alexandre Gourjii +1 more
TL;DR: In this paper, the axisymmetric laminar flow of a two-phase (liquid-gas) flow inside the infinite system of coaxial tubes with a circular cross-section located vertically is considered.
References
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Journal ArticleDOI
Prediction of the slug-to-churn flow transition in vertical two-phase flow
TL;DR: In this paper, an assessment of the various viewpoints on the slug-to-churn flow transition in vertical upward flow in the light of recent experimental results obtained at Harwell Laboratory is made.
Journal ArticleDOI
Flooding in tubes and annuli
TL;DR: In this article, a new flooding correlation is presented which solves the obvious contradiction between the Wallis correlation and the study by Pushkina and Sorokin concerning the scaling question at zero penetration of liquid.
Book ChapterDOI
A critical review of the flooding literature
S. George Bankoff,Sang Chun Lee +1 more
TL;DR: In the absence of electromagnetic force fields, thermocapillary effects or concentration-capillary effects, countercurrent flow can be sustained only as a result of the difference in the gravitational force per unit volume on the gas and on the liquid as discussed by the authors.
Journal ArticleDOI
Air-water countercurrent annular flow
D. Bharathan,Graham B. Wallis +1 more
TL;DR: In this paper, the authors investigated the effect of tube end geometries on measured countercurrent fluxes, liquid fraction, and pressure gradients, and analogies between countercurrent gas-liquid flow and other more familiar flows in internal geometry are indicated.
Journal ArticleDOI
Flooding and churn flow in vertical pipes
TL;DR: In this paper, a 32 mm dia vertical pipe with various forms of liquid outlet, namely a porous wall, a tapered outlet, and a square-edged outlet, was used to investigate the effect of churn flow on the penetration rate.
Related Papers (5)
Countercurrent gas–liquid flow in inclined and vertical ducts — I: Flow patterns, pressure drop characteristics and flooding
A. Zapke,D.G. Kröger +1 more