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Author : Bennett David Woods
Publisher :
ISBN 13 :
Total Pages : 220 pages
Book Rating : 4.:/5 (361 download)
Download or read book Shedding Rates of Slugs in Two Phase Horizontal Pipe Flow written by Bennett David Woods and published by . This book was released on 1995 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Thomas J. Hanratty
Publisher : Cambridge University Press
ISBN 13 : 1107512972
Total Pages : 359 pages
Book Rating : 4.1/5 (75 download)
Download or read book Physics of Gas-Liquid Flows written by Thomas J. Hanratty and published by Cambridge University Press. This book was released on 2013-10-31 with total page 359 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presenting tools for understanding the behaviour of gas-liquid flows based on the ways large scale behaviour relates to small scale interactions, this text is ideal for engineers seeking to enhance the safety and efficiency of natural gas pipelines, water-cooled nuclear reactors, absorbers, distillation columns and gas lift pumps. The review of advanced concepts in fluid mechanics enables both graduate students and practising engineers to tackle the scientific literature and engage in advanced research. It focuses on gas-liquid flow in pipes as a simple system with meaningful experimental data. This unified theory develops design equations for predicting drop size, frictional pressure losses and slug frequency, which can be used to determine flow regimes, the effects of pipe diameter, liquid viscosity and gas density. It describes the effect of wavy boundaries and temporal oscillations on turbulent flows, and explains transition between phases, which is key to understanding the behaviour of gas-liquid flows.
Author : C. A. Brebbia
Publisher : WIT Press
ISBN 13 : 1845647343
Total Pages : 557 pages
Book Rating : 4.8/5 (456 download)
Download or read book Computational Methods in Multiphase Flow VII written by C. A. Brebbia and published by WIT Press. This book was released on 2013-07-03 with total page 557 pages. Available in PDF, EPUB and Kindle. Book excerpt: Multiphase flows are found in all areas of technology, at all length scales and flow regimes and can involve compressible or incompressible linear or nonlinear, fluids. However, although they are ubiquitous, multiphase flows continue to be one of the most challenging areas of computational mechanics, with numerous problems as yet unsolved. Advanced computational and experimental methods are often required to solve the equations that describe such complex problems. The many challenges that must be faced in solving them include modelling nonlinear fluids, modelling and tracking interfaces, dealing with multiple length scales, characterising phase structures, and treating drop break-up and coalescence. It is important to validate models, which calls for the use of expensive and difficult experimental techniques.This book presents contributions on the latest research in the techniques for solving multiphase flow problems, presented at the seventh in a biennial series of conferences on the subject that began in 2001. Featured topics include: Flow in porous media; Turbulent flow; Multiphase flow simulation; Image processing; Heat transfer; Atomization; Interface behaviour; Oil and gas applications; Experimental measurements; Energy applications; Biological flows; Micro and macro fluids; Compressible flows.
Download or read book Numerical simulation of twophase slug flow in horizontal and nearly horizontal pipes written by and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Escoamentos bifásicos no regime de golfadas são caracterizados pelaalternância de pacotes de líquido e grandes bolhas de gás na tubulação, sendoassociados a altas perdas de carga, além de trazer uma indesejada intermitênciaaos escoamentos. O desenvolvimento do regime de golfadas em tubulaçõeshorizontais se dá a partir do escoamento estratificado em decorrência de doisfatores: do crescimento natural de pequenas perturbações (por um mecanismo deinstabilidade do tipo Kelvin-Helmholtz) ou devido à acumulação de líquidocausada por mudanças de inclinação no perfil do duto. O presente trabalhoconsiste da simulação numérica do surgimento das golfadas em ambas assituações descritas acima, assim como do subseqüente desenvolvimento doescoamento neste padrão para um regime estatisticamente permanente. Aprevisão do escoamento é obtida utilizando-se uma formulação unidimensionalbaseada no Modelo de Dois Fluidos. Parâmetros médios das golfadas(comprimento, velocidade e freqüência) são comparados com estudos numéricose experimentais da literatura, obtendo-se uma concordância bastante satisfatória, especialmente dada a simplicidade de uma formulação unidimensional.
Author : John R Thome
Publisher : World Scientific
ISBN 13 : 9814623229
Total Pages : 1109 pages
Book Rating : 4.8/5 (146 download)
Download or read book Encyclopedia Of Two-phase Heat Transfer And Flow I: Fundamentals And Methods (A 4-volume Set) written by John R Thome and published by World Scientific. This book was released on 2015-08-14 with total page 1109 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of the two-set series is to present a very detailed and up-to-date reference for researchers and practicing engineers in the fields of mechanical, refrigeration, chemical, nuclear and electronics engineering on the important topic of two-phase heat transfer and two-phase flow. The scope of the first set of 4 volumes presents the fundamentals of the two-phase flows and heat transfer mechanisms, and describes in detail the most important prediction methods, while the scope of the second set of 4 volumes presents numerous special topics and numerous applications, also including numerical simulation methods.Practicing engineers will find extensive coverage to applications involving: multi-microchannel evaporator cold plates for electronics cooling, boiling on enhanced tubes and tube bundles, flow pattern based methods for predicting boiling and condensation inside horizontal tubes, pressure drop methods for singularies (U-bends and contractions), boiling in multiport tubes, and boiling and condensation in plate heat exchangers. All of these chapters include the latest methods for predicting not only local heat transfer coefficients but also pressure drops.Professors and students will find this 'Encyclopediaa of Two-Phase Heat Transfer and Flow' particularly exciting, as it contains authored books and thorough state-of-the-art reviews on many basic and special topics, such as numerical modeling of two-phase heat tranfser and adiabatic bubbly and slug flows, the unified annular flow boiling model, flow pattern maps, condensation and boiling theories, new emerging topics, etc.
Author : Salomon Levy
Publisher : John Wiley & Sons
ISBN 13 : 9780471329671
Total Pages : 450 pages
Book Rating : 4.3/5 (296 download)
Download or read book Two-Phase Flow in Complex Systems written by Salomon Levy and published by John Wiley & Sons. This book was released on 1999-08-02 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mehrphasige Strömungen spielen in etlichen Industriezweigen, besonders der Luft- und Raumfahrt und der Energieerzeugung, eine zentrale Rolle. Derart komplexe Strömungsvorgänge sind extrem schwer vorauszuberechnen, zu analysieren und zu testen. Wertvolle Hilfestellungen, die für reale technische Situationen gedacht sind, gibt dieser Band, der auch Quelltexte einschlägiger Computerprogramme enthält. (07/99)
Author : Robert Marcano
Publisher :
ISBN 13 :
Total Pages : 146 pages
Book Rating : 4.:/5 (38 download)
Download or read book Slug characteristics for two-phase horizontal flow written by Robert Marcano and published by . This book was released on 1996 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Seungyong Chang
Publisher :
ISBN 13 :
Total Pages : 200 pages
Book Rating : 4.:/5 (324 download)
Download or read book Slug Flow Simulation in Inclined Pipes written by Seungyong Chang and published by . This book was released on 1993 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Salihu Jamari
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (112 download)
Download or read book Experimental Study of Stratified/Slug-Annular Flow in Two-Phase (Air-Liquid) in a Horizontal Pipe written by Salihu Jamari and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Kuang-juh Chu
Publisher :
ISBN 13 :
Total Pages : 236 pages
Book Rating : 4.:/5 (136 download)
Download or read book An Analysis of Slug Frequency in Two-phase Horizontal Slug Flow written by Kuang-juh Chu and published by . This book was released on 1968 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Analysis of slug flow in horizontal pipelines by the two fluid model written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Diversos processos práticos apresentam uma seqüência de diferentes configurações de escoamentos bifásicos, com diferentes padrões de escoamento. Dependendo das razões entre as velocidades superficiais do gás e do líquido, diferentes padrões de escoamento bifásico podem ser encontrados. O padrão de escoamento slug pode ser formado a partir do padrão estratificado, devido ao crescimento das instabilidades hidrodinâmicas ou devido às ondulações noterreno onde se instala a tubulação. O presente trabalho consiste na análise do escoamento bifásico no padrão slug, ao longo de tubulações horizontais, mediante a aplicaçãodo modelo de dois fluidos em sua forma transiente e unidimensional. Através de uma análise de estabilidade de Kelvin-Helmholtz para escoamento estratificado, estima-se a possível faixa de operação para a obtenção de um modelomatemático bem posto. Diferentes técnicas de discretização foram implementadas e testadas. Comparações com dados disponíveis na literatura foram realizadas.
Author :
Publisher :
ISBN 13 :
Total Pages : 36 pages
Book Rating : 4.:/5 (727 download)
Download or read book Determination and Characteristics of the Transition to Two-phase Slug Flow in Small Channels written by and published by . This book was released on 1992 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two-phase pressure drop was measured in a small horizontal rectangular channel (hydraulic diameter = 5.44 mm). The two-phase fluid was an air/water mixture at atmospheric pressure tested over a mass flux range of 50 to 2000 kg/m[sup 2][center dot]s. Two-phase flow patterns were identified and an objective method was found for determining the flow pattern transition from bubble or plug flow to slug flow. The method is based on an RMS pressure measurement. In particular, it is shown that the transition is accompanied by a clear and abrupt increase in the RMS pressure when plotted as a function of mass quality. Use of the RMS pressure as a two-phase flow pattern transition indicator is shown to have advantages over pressure-versus-time trace evaluations reported in the literature. The transition is substantiated by a clear local change in slope in the curve of two-phase pressure drop plotted as a function of either Martinelli parameter or mass quality. For high mass fluxes, the change in slope is distinguished by a local peak. Some degree of substantiation was found in previous work for both of the results (the RMS pressure change and the local pressure drop change) at the transition to slug flow.
Author : Lewis R. Vermeulen
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (137 download)
Download or read book Two-phase (air-water) Slug Flow in Horizontal and Inclined Tubes written by Lewis R. Vermeulen and published by . This book was released on 1968 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jatinder Singh Riat
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (123 download)
Download or read book Two-phase (air-water) Slug Flow in Horizontal Tubes written by Jatinder Singh Riat and published by . This book was released on 1970 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Richard Emmett Dascher
Publisher :
ISBN 13 :
Total Pages : 254 pages
Book Rating : 4.:/5 (136 download)
Download or read book The Measurement of Liquid Holdup in Two-phase Horizontal Slug Flow written by Richard Emmett Dascher and published by . This book was released on 1968 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Eugene S. Kordyban
Publisher :
ISBN 13 :
Total Pages : 336 pages
Book Rating : 4.:/5 (15 download)
Download or read book Mechanism of Slug Formation in Horizontal Two-phase Flow written by Eugene S. Kordyban and published by . This book was released on 1968 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Zafer Bozkuş
Publisher :
ISBN 13 :
Total Pages : 286 pages
Book Rating : 4.3/5 (129 download)
Download or read book The Hydrodynamics of an Individual Transient Slug in a Voided Line written by Zafer Bozkuş and published by . This book was released on 1991 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt:
