Two Phase Flow Studies in Large Diameter Pipes PDF Download
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Author: J. G. Teng
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Author: J. G. Teng
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Author: Sadik Kakaç
Publisher: Wiley-Interscience
ISBN:
Category : Science
Languages : en
Pages : 1268
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Very Good,No Highlights or Markup,all pages are intact.
Author: Afshin J. Ghajar
Publisher: Springer Nature
ISBN: 3030416267
Category : Science
Languages : en
Pages : 136
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Book Description
This book provides design engineers using gas-liquid two-phase flow in different industrial applications the necessary fundamental understanding of the two-phase flow variables. Two-phase flow literature reports a plethora of correlations for determination of flow patterns, void fraction, two- phase pressure drop and non-boiling heat transfer correlations. However, the validity of a majority of these correlations is restricted over a narrow range of two -phase flow conditions. Consequently, it is quite a challenging task for the end user to select an appropriate correlation/model for the type of two-phase flow under consideration. Selection of a correct correlation also requires some fundamental understanding of the two-phase flow physics and the underlying principles/assumptions/limitations associated with these correlations. Thus, it is of significant interest for a design engineer to have knowledge of the flow patterns and their transitions and their influence on two-phase flow variables. To address some of these issues and facilitate selection of appropriate two-phase flow models, this volume presents a succinct review of the flow patterns, void fraction, pressure drop and non-boiling heat transfer phenomenon and recommend some of the well scrutinized modeling techniques.
Author: Matheus Sigaki Capovilla
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: University of Strathclyde. Department of Thermodynamics and Fluid Dynamics
Publisher:
ISBN:
Category : Fluid dynamic measurements
Languages : en
Pages : 22
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Author: Wenjie Zhu
Publisher:
ISBN:
Category : Fluid dynamic measurements
Languages : en
Pages : 254
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Author: B. J. Azzopardi
Publisher:
ISBN:
Category : Fluid mechanics
Languages : en
Pages :
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Author: Shatub Magid Hassan
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Author: Lawrence Robert Williams
Publisher:
ISBN:
Category :
Languages : en
Pages : 322
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The effect of pipe diameter on horizontal annular flow is examined. Measurements of the local film height, the local droplet flux, the local velocity, and the entrained fraction for annular flow in a 9.53 cm horizontal pipe have been obtained. The measurements are compared with the results from previous investigators for horizontal annular flow in pipes with diameters of 2.54 cm and 5.08 cm. A new large scale two-phase flow facility has been designed and constructed. The facility has the ability to incline a 26.5 m pipe at angles between positive and minus 2.5 degrees from the horizontal. Local film height measurements show that the film distribution becomes increasingly asymmetric with increasing pipe diameter. The effect of pipe diameter on the asymmetries of the liquid film distribution is predicted approximately by a Froude number. At Froude numbers below 50, the liquid is stratified as a pool at the pipe bottom. A turbulent diffusion model developed by a co-researcher for the droplet concentration distribution is in good agreement with measurements at low gas velocities and low droplet concentrations. At higher droplet concentrations, velocity measurements suggest the existence of a secondary flow in the gas which inhibits droplet settling. Entrainment correlations developed from experiments in small diameter pipes, over predict the entrained fraction in large diameter pipes. A generalized entrainment correlation based on an equilibrium rate balance between the rate of atomization of droplets from the liquid film and the rate of deposition of droplets back to the liquid film is developed. The correlation is easily interpreted for two extremes of the liquid film distribution. When the film is distributed uniformly around the pipe wall, the entrainment relation reduces to a form developed by previous researchers. For conditions where the liquid film is stratified as a pool at the pipe bottom, a new entrainment relation is developed which is in good agreement with the results.
Author: Walter James
Publisher:
ISBN:
Category : Two-phase flow
Languages : en
Pages : 84
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