Drop formation in annular two-phase flow by David Brian Gibbons

Cover of: Drop formation in annular two-phase flow | David Brian Gibbons

Published by University of Birmingham in Birmingham .

Written in English

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Edition Notes

Thesis (Ph.D.) - University of Birmingham, Dept of Chemical Engineering.

Book details

Statementby David Brian Gibbons.
ID Numbers
Open LibraryOL14833031M

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Annular Two-Phase Flow presents the wide range of industrial applications of annular two-phase flow regimes. This Drop formation in annular two-phase flow book discusses the fluid dynamics and heat transfer aspects of the flow pattern.

Organized into 12 chapters, this book begins with an overview of the classification of the various types of interface distribution observed in practice. Annular Two-Phase Flow presents the wide range of industrial applications of annular two-phase flow regimes. This book discusses the fluid dynamics and heat transfer aspects of the flow pattern.

Organized into 12 chapters, this book begins with an overview of the classification of the various types of interface distribution observed in Edition: 1. Abstract. Drops, one of the forms in which liquid is present in annular gas-liquid flow, are formed from the wall film, carried by the gas or vapour and redeposited.

During this time they exert a strong influence on many important parameters of both flow and heat transfer. The available information on the creation, size and velocity, Cited by: The total measured pressure drop in two-phase flow (p) consists of three contributions. The first contribution is the frictional pressure drop (p f).

The second contribution is the acceleration pressure drop (p a). The third contribution is the gravitational pressure drop (p grav).Cited by: 9.

Two-Phase Flow Pressure Drop Across Thick Restrictions of Annular Geometries Summer and donation of his time and his books, and Dr.

Denning, for serving on my committee. Finall intent here to evaluate the pressure drop for two-phase flow across annular orifices.

A re ie of literature indicates that in two- phase systems, it Author: S. Ghandeharioun, E. Hosler. Proceedings 16th Geothermal Workshop VERTICALLY UPWARD TWO PHASE FLOW IN AN ANNULUS T.S.

K.C. New Zealand Wellington, Institute,The University of Auckland, Auckland, SUMMARY-This describes an experimental study of pressure drop in vertically two phase flow in annulus. Anexperimental rig was designed and built to pressure drop and observe flow regime for air File Size: KB.

Two-phase flow pattern, pressure drop and void fraction in horizontal and inclined upward air–water two-phase flow in a mini-gap annular channel are experimentally studied. A concentric annular test section at the length of mm with an outer diameter of mm and inner diameter of 8 mm is used in the experiments.

Two phase flow – flow regimes drop. Two phase flow – flow regimes – p. Geometrical difference The flow regimes can be divided into three main classes: 1. Regimes for horizontal flow in pipes, where the heavier Annular flow whispy annular Churn flow Bubbly slug flow Bubble flow liquid gas Two phase flow – flow regimes File Size: KB.

slug flow, chum flow and annular flow, as shown in Fig. t t BUBBLE SLUG CHURN ANNULAR FLOW FLOW FLOW FLOW Figure Flow in upward two phase flow (After et al. In low temperature wells, due to the low gas water ratio, annular flow seldom occurs.

Therefore in this study annular flow pressure drop calculations are not presented. Two-Phase Gas/Liquid Pipe Flow Ron Darby PhD, PE Values given by manufacturer, or in the “Red Book” If flow is choked (critical) use: d,gas If flow is not choked (sub -critical) use: d,liquid K K d K.

TWO-PHASE DENSITY Two-Phase Flow is much more complex. Calculating Two-Phase Pressure Drop Scott S. Haraburda, PE ([email protected]) Production Engineer, GE Plastics, Mt. Vernon, IN And Steve Chafin ([email protected]) Consulting Process Engineer, River City Engineering, Lawrence, KS Fluid flow concerns are quite prevalent among systems that handle chemicals, either in.

of flow quality and flow rate are “low”, “intermediate” or “high” depend on the fluid and pressure. In horizontal flow, in addition to the above flow regimes, there can also be stratified flow, typical of low flow rates at which the two phases separate under the effect of gravity.

Table 1. flow of liquids in pipes of circular and annular cross-sections by alonzo p. Drop formation in annular two-phase flow book horace j. macintire richard e. gould bulletin no. engineering experiment station poaria by t x unixvbaitr or iuauois, usbb pabic: e'srnn ents.

Annular Two-Phase Flow 1st Edition by G.F. Hewitt (Author) › Visit Amazon's G.F. Hewitt Page. Find all the books, read about the author, and more.

See search results for this author. Are you an author. Learn about Author Central. G Cited by:   Drop sizes in annular flow have been measured using a diffraction technique.

Several series of experiments were carried out to determine the effect of gas velocity, drop concentration, film flow rate and tube diameter on drop size. Film flow rate and tube diameter have been found to have very little influence on the sizes of drops by: Bragg () is devoted to gas-liquid two-phase flow.

Here, we only consider the qualitative features of gas-liquid flow in a horizontal pipe to give you an appreciation of the complexity of two-phase flow when compared with the flow of a single fluid phase.

The sketches on the following pages depict various regimes of cocurrent two-phase flow File Size: 22KB. Espe- cially of interest to the designer is the pressure drop as the two phases flow through the pipe, and in the case of non-isothermal systems, the rate at which heat can be transported in the pipe by the two phase flow.

Gravity is a crucial parameter in two phase by: Annular flow is dominant in gas-condensate and geothermal wells. Oil wells also experience annular flow when high-GOR production occurs after gas breakthrough or when gas-lift is installed.

In general, the annular-flow pattern comprises gas core in the middle of the flow string with a Cited by: 1. Two-phase pressure drop across a straight test pipe was experimentally determined for high Reynolds (Re) number steam flow for a flow quality range of to [5].

Microgravity two-phase flow experiments are conducted on the NASA Lewis Learjet which can produce second periods of microgravity (0 k g) by following a Keplerian trajectory [SI.

A flow loop provides metered quantities of gas and liquid to an annular mixer. The two-phase mixture flows through a development section. The liquid film in annular two‐phase flow is maintained by droplet movement to and from the gas core and by wave action.

This work examines droplet movement and its effect on the liquid film. Film formation and movement both axially and circumferentially were investigated by Cited by: Annular flow instability 8 INTERNAL FLOW ENERGY CONVERSION INTRODUCTION FRICTIONAL LOSS IN DISPERSE FLOW Horizontal Flow Homogeneous flow friction Heterogeneous flow friction Vertical flow FRICTIONAL LOSS IN SEPARATED FLOW Two component flow File Size: 6MB.

Drag reduction in two-phase annular flow of air and water in an inclined pipeline A. Al-Sarkhi1, E. Abu-Nada1 & M. Batayneh2 1Department of Mechanical Engineering, Hashemite University, Zarqa, Jordan 2Department of Civil Engineering, Hashemite University, Zarqa, Jordan Abstract Measurements of drag reduction for air and water flowing in an inclined.

@article{osti_, title = {Two-phase flow and pressure drop in flow passages of compact heat exchangers}, author = {Wambsganss, M W and Jendrzejczyk, J A and France, D M}, abstractNote = {Two-phase flow experiments were performed with air/water mixtures in a small rectangular channel measuring {times} mm (aspects ratio equal to 6), for applications to compact heat exchangers.

problems involving two-phase flow and multiple physics Part Two-phase Flow Simulations Drop formation at a single hole in a sieve plate Air pulsed liquid columns Liquid-liquid two-phase flow at microfluidic junctions Part Multiphysics Simulations Flow electrolysers Pore of a supported liquid membrane Mass transfer for a single droplet.

where (dP/dz) 2f is frictional pressure gradient of two-phase flow and (dP/dz) 1f is frictional pressure gradient if entire flow (of total mass flow rate G) flows as liquid in the channel (standard single-phase pressure drop).). The term Φ lo 2 is the homogeneous friction multiplier, that can be derived according to various of possible multipliers is equal to Φ lo 2 = (1+x g (ρ.

gas kick due to hydrate formation, which increases with time. Key words: Annular multiphase flow, phase transition, natural gas hydrate, gas kick Annular multiphase flow behavior during deep water drilling and the effect of hydrate phase transition 1 Introduction As oil from shallow water is Cited by: J.

Fluid Mech. (), vo1. 42, part 2, pp. Printed in Great Britain REVIEWS One-Dimensional Two-Phase Flow. BY G. Hill, Cocurrent Gas-Liquid Flow. Edited by E. RHODES AND D. Two-phase flow has been the subject of active research interest for the last 25 years and during this time several thousand papers must have been : N.

Weiss. Annular flow is a flow regime of two-phase gas-liquid flow (see gas-liquid flow). It is characterized by the presence of a liquid film flowing on the channel wall (in a round channel this film is annulus-shaped which gives the name to this type of flow) and with the gas flowing in the gas core.

The flow core can contain entrained liquid droplets. Cambridge Core - Thermal-Fluids Engineering - Two-Phase Flow, Boiling, and Condensation - by S. Mostafa GhiaasiaanAuthor: S. Mostafa Ghiaasiaan. Volume 3 on Flow Boiling in Macro and Micro Channels provides comprehensive coverage of convective boiling together with flow pattern maps, void fraction and pressure drop methods, entrainment, CHF, etc.

for small and large channels by the leading boiling experts. Contents: Introduction to Two-Phase Flow and Boiling in Channels.

@article{osti_, title = {TECHNIQUES FOR LIQUID FILM AND PRESSURE DROP STUDIES IN ANNULAR TWO-PHASE FLOW}, author = {Hewitt, G F and King, R D and Lovegrove, P C}, abstractNote = {Work is described which is concerned with developing and improving new techniques for studying annular flow.

Surface waves were investigated using the needle contact method, and. Pressure drop characteristics of Ra in annular helicoidal pipe was investigated experimentally with Ra flowing in the annular section. The experimental results revealed that when more Ra vapor was condensed, the liquid phase pressure drop increased largely while the vapor phase pressure drop decreased : H.

Mo, R. Prattipati, C. Lin. T-Junction Devices. In a typical T-junction configuration, as depicted in Figure 1, the two phases flow through orthogonal channels and form droplets where they type of geometry was first demonstrated in by Thorsen et al.

[], who produced monodisperse droplets with pressure controlled laminar flow in then many studies were performed using T-junction Cited by: Books are available here 1 Basics of Fluid Flow Single and Two phase fluid flow calculations Prepared by Yasser KassemFile Size: 2MB.

Homogeneous flow; Separated flow; Drift-flux model. Practical applications: Bubbly flow, Suspensions of particles in fluids, Slug flow, Annular flow, Drop flow, Bubble formation and bubble dynamics, hydrodynamics of solid –liquid and gas-solid flow, hydrodynamics of three phase flows, measurement techniques in multiphase flow.

The present study reports pressure drop measurements of oil (D80)-water annular two-phase flow in a horizontal and inclined 6 inch diameter stainless steel pipe at different flow conditions. Experiments were carried out for different inclination angles including; 0°, 40°. Rodı´guez, D. J., and Shedd, T.

A.,“Cross-sectional imaging of the liquid film in horizontal two-phase annular flow,” in ASME Heat Transfer/Fluids Engineering Summer Conference, Paper Cited by: Li et al.

[7] studied flow reversal in vertically inverted U-tube steam generators used in marine nuclear power plants, whereas Klenov and Noskov [8] investigated the effect of two-phase flow.

Annular Flow – Vertical Tubes. Annular flow is a flow regime of two-phase gas-liquid flow. It is characterized by the presence of a liquid film flowing on the channel wall (forming an annular ring of liquid) while the gas flows as a continuous phase up in the center of the flow core can contain entrained liquid droplets.

The velocity of the gas core is very large and it is large. Two-phase Transition to annular flow from slug flow Eduardo Snash.

Slug flow formation in 3D pipes - Duration: Two phase flow pattern in horizontal tube.David Brian Gibbons has written: 'Drop formation in annular two-phase flow' Asked in Authors, Poets, and Playwrights What has the author Helen Gibbons written?This graduate text provides a unified treatment of the fundamental principles of two-phase flow and shows how to apply the principles to a variety of homogeneous mixture as well as separated liquid-liquid, gas-solid, liquid-solid, and gas-liquid flow problems, which may be steady or transient, laminar or chapter contains several sample problems, which illustrate the outlined 4/5(1).

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