Effect of Pipe Diameter on Horizontal Annular Two-phase Flow - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Effect of Pipe Diameter on Horizontal Annular Two-phase Flow write by Lawrence Robert Williams. This book was released on 1990. Effect of Pipe Diameter on Horizontal Annular Two-phase Flow available in PDF, EPUB and Kindle. 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.
Studies of the Effects of Pipe Size on Horizontal Annular Two-phase Flows
Studies of the Effects of Pipe Size on Horizontal Annular Two-phase Flows - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Studies of the Effects of Pipe Size on Horizontal Annular Two-phase Flows write by James Edwin Laurinat. This book was released on 1982. Studies of the Effects of Pipe Size on Horizontal Annular Two-phase Flows available in PDF, EPUB and Kindle.
Effect of Pipe Diameter and Liquid Viscosity on Horizontal Stratified Flow
Effect of Pipe Diameter and Liquid Viscosity on Horizontal Stratified Flow - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Effect of Pipe Diameter and Liquid Viscosity on Horizontal Stratified Flow write by Nikolaos Andritsos. This book was released on 1986. Effect of Pipe Diameter and Liquid Viscosity on Horizontal Stratified Flow available in PDF, EPUB and Kindle.
Annular Two-Phase Flow
Annular Two-Phase Flow - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Annular Two-Phase Flow write by Geoffrey Hewitt. This book was released on 2013-10-22. Annular Two-Phase Flow available in PDF, EPUB and Kindle. 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 practice. This text then examines the various regimes of two-phase flow with emphasis on the regions of occurrence of the annular flow regime. Other chapters consider the single momentum and energy balances, which illustrate the differences and analogies between single- and two-phase flows. This book discusses as well the simple modes for annular flow with consideration to the calculation of the profile of shear stress in the liquid film. The final chapter deals with the techniques that are developed for the measurement of flow pattern, entrainment, and film thickness. This book is a valuable resource for chemical engineers.
Two-Phase Gas-Liquid Flow in Pipes with Different Orientations
Two-Phase Gas-Liquid Flow in Pipes with Different Orientations - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Two-Phase Gas-Liquid Flow in Pipes with Different Orientations write by Afshin J. Ghajar. This book was released on 2020-03-14. Two-Phase Gas-Liquid Flow in Pipes with Different Orientations available in PDF, EPUB and Kindle. 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.
