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Saturday, May 2, 2020 | History

4 edition of Investigation of liquid transport mechanisms in horizontal annular flow found in the catalog.

Investigation of liquid transport mechanisms in horizontal annular flow

Balendra Sutharshan

Investigation of liquid transport mechanisms in horizontal annular flow

by Balendra Sutharshan

  • 194 Want to read
  • 32 Currently reading

Published by National Library of Canada in Ottawa .
Written in English


Edition Notes

Thesis (M.A.Sc.)--University of Toronto, 1993.

SeriesCanadian theses = Thèses canadiennes
The Physical Object
FormatMicroform
Pagination2 microfiches : negative.
ID Numbers
Open LibraryOL21078951M
ISBN 100315925078
OCLC/WorldCa35945605

Droplet entrainment in vertical gas–liquid annular flow XE “annular flow”. Proceedings of the 2nd International Symposium on Two- Phase Flow Modelling and Experimentation, Rome, vol. 2. Baker Jardine () PIPESIM User Guide. Ahmed, T. () Reservoir Engineering Handbook. Gulf Professional Publishing. (Book). When is less than , N Re Cited by: 7.

In Shale formations whit pores of nanometers sizes the interacting forces between the pore walls and the gas molecules are increasingly producing alterations in the flow behavior. As a result the flow classic theory doesn't work appearing new transport mechanisms such as the Slip flow, transitional flow and Knudsen diffusion. This article reviews the physical processes responsible for the transport and deposition of particles and their theoretical modeling. Both laminar and turbulent processes are considered, emphasizing the physical understanding of the various transport mechanisms. State-of-the-art computational methods for determining particle motion and deposition are discussed, including stochastic Lagrangian Cited by:

Models are presented for determining flow regime transitions in two‐phase gas‐liquid flow. The mechanisms for transition are based on physical concepts and are fully predictive in that no flow regime transitions are used in their development. A generalized flow Cited by: of liquid film depletion and wall dry-out in annular flow. Liquid film flow on the wall, vapour flow and droplets entrained in the vapour core are represented by three fluid streams (n =3) for annular flow pattern in a pipe. Four fluid streams (n =4) correspond to the annular flow in annuli, where these streams represent liquid film on the.


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Investigation of liquid transport mechanisms in horizontal annular flow by Balendra Sutharshan Download PDF EPUB FB2

CONCLUSIONS In the present study, the time-dependent behaviour of the liquid film in horizontal annular flow is investigated. The following conclusions can be drawn from this study. At high liquid flow rates and low gas flow rates, the liquid film is affected by Cited by: Investigation of liquid transport mechanisms in horizontal annular flow book A mechanistic model of film movements is developed based on the treatments on the annular flow field.

The initial conditions at the inlet are determined by adopting a validated film thickness correlation of fully developed upward annular flow in vertical by: 1.

Mucus transport speed induced by two-phase gas-liquid interaction was measured in the continuous two-phase annular flow tube models, and factors influencing the transport speed were assessed in conjunction with rheological properties of mucus.

The flow model was made with cm-ID glass tubes and positioned either vertically or by: Experiments were conducted on low-pressure, air-water, annular flow in a mm i.d. horizontal tube. For two flow conditions and for two distances downstream of liquid injection, the film characteristics were measured as a function of circumferential position, and liquid entrainment measurements were made in Cited by:   The main purpose of this study is to investigate liquid entrainment mechanisms of annular flow by computational fluid dynamics (CFD) techniques.

In the modeling, a transient renormalization group (RNG) k-ε model in conjunction with an enhanced wall treatment method was employed. In order to reconstruct the two-phase interface, the volume of Cited by: However, increasing the liquid flow rate was more effective in terms reducing the cuttings bed deposition.

On average, the use of % PHPA polymer fluid with air for cuttings transport caused % drag reduction while reducing the annular area occupied by the cuttings by 4% and cuttings bed height by %. Though cuttings transport Cited by: 2. A theoretical investigation has been made of core-annular flow: the flow of a high-viscosity liquid core surrounded by a low-viscosity annular liquid layer through a horizontal pipe.

Abstract. This paper reports numerical and experimental investigation of stratified gas-liquid two-phase flow in horizontal circular pipes.

The Reynolds averaged Navier Stokes equations (RANS) with the k-{omega} model for a fully developed stratified gas-liquid two-phase flow are solved by using the finite element method.

Onset and Subsequent Transient Phenomena of Liquid Loading in Gas Wells: Experimental Investigation Using a Large Scale Flow Loop. (August ) mechanisms between the phases in annular flow Figure – Experimental results for dimensionless pressure gradient as a sectional measurement of the liquid film in horizontal annular.

The evolution of their statistical properties is assessed for a range of flow conditions in which the liquid flow rate was kept constant at Usl = m/s, whilst the gas flow rate was gradually.

The mobile layer of a granular bed composed of spherical particles is experimentally investigated in a laminar rectangular channel flow. Both particle and fluid velocity profiles are obtained using particle image velocimetry for different index-matched combinations of particles and fluid and for a wide range of fluid flow rates above incipient by:   Annular gas–liquid flow was investigated using high-speed modification of LIF technique.

The evolution of liquid film surface was studied with high spatial and temporal resolution. It was found that all waves may be classified into primary and secondary waves; all the secondary waves arise due to instability of the back fronts of primary by: 8.

High-speed fluorescent visualization complex has been developed for quantitative investigation of the process of interaction of waves on liquid film in annular two-phase flow.

Evolution of ripples on disturbance waves surface and disturbance waves coalescence are investigated. It is shown that all the ripples in presence of disturbance waves appear at the base of the back front of Cited by: Gill, L E, Hewitt, G F, and Roberts, D N.

STUDIES OF THE BEHAVIOUR OF DISTURBANCE WAVES IN ANNULAR FLOW IN A LONG VERTICAL Kingdom: N. p., Web. MCCASLIN, J.

O., DESJARDINS, O. () Direct numerical simulations of gas-liquid annular flows in horizontal pipes: predictions of film height and mechanisms for film sustainment, 64th Annual Meeting of the APS Division of Fluid Dynamics, Baltimore, MD.

The laminar flow equations for annular flow are approximate for Newtonian and power-law flow in annuli with low-clearance but reasonably accurate and much simpler than the exact solutions. Note that for low clearance annuli, the slit flow model provides almost as accurate a result as the concentric annular model but can also be modified to.

An experimental investigation on the narrow annular-flow-induced vibration instability of a tube H. Kang1, N. Muriethi2 & M. Pettigrew2 1LWR Fuel Technology Division, Korea Atomic Energy Research Institute, Korea 2Department of Mechanical Engineering, Ecole polytechnique de Montreal, Canada Abstract.

This investigation extends the basic knowledge of two-phase annular flow with high viscosity liquids. EXPERIMENTAL APPARATUS Figure 1 shows a schematic of the adiabatic, near-ambient pressure, air/oil flow visualization loop for this study.

A three-dimensional linear instability analysis was carried out for an annular swirling viscous liquid jet with solid vortex swirl velocity profile.

An analytical form of dispersion relation was derived and then solved by a direct numerical procedure. A parametric study was performed to explore the instability mechanisms that affect the maximum spatial growth by: 1.

Angeli P, Hewitt GF,Pressure gradient phenomena during horizontal oil-water flow, Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE, Vol: 5, Pages: Pressure gradients were measured during the cocurrent dispersed flow of oil ( mPa s viscosity) and water in two 1 inch nominal bore horizontal test sections made from stainless steel.

Laboratory Investigations on Upward Gas-liquid Transport From Low-Pressure Reservoirs During Slug-to-Annular Flow Pattern Transitions (,Co-Supervised with Dr. Peter Toma) Numerical Modeling of Cuttings Transport in Horizontal and Vertical Wells (Ph.D., )   Around a horizontal cylinder submerged beneath waves with its axis parallel to the wave crests there exists, owing to streaming flow in the boundary layer, circulation with the same sense of rotation as that of the orbital motion in the by: Under such configuration of the inlet, liquid is introduced as a film, and annular flow regime takes place from the very beginning.

Range of superficial gas velocities V g is 15 to 57 m/s; range of liquid Reynolds numbers Re L is from to Re L is defined as q/πdν, where q is volumetric liquid flow rate, and ν is kinematic viscosity File Size: 3MB.