Download or read book Wave propagation through flowing gas liquid mixtures in long pipelines thesis written by Mahadevan Padmanabhan and published by . This book was released on 1976 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wave propagation Through Flowing Gas liquid Mixtures in Long Pipelines written by Mahadevan Padmanabhan and published by . This book was released on 1976 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1991 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wave Propagation in Gas Liquid Media written by V. E. Nakoryakov and published by CRC Press. This book was released on 1993-06-28 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wave Propagation in Gas-Liquid Media (translated from the Russian 2nd Edition, published in 1990) presents the fundamentals of wave dynamics of two-phase gas-liquid systems. The study of multiphase systems is of growing importance in mechanics and thermophysics, particularly for applications in industrial, energy, power, chemical, and aerospace engineering. This book presents investigations of non-linear wave dynamics, as well as practical applications of wave motion. A system of non-stationary gas-dynamics to replace studies of conventional gas-dynamics is constructed by the book's contributors. Topics discussed include acoustics and shock waves in homogenous gas- and vapor-liquid mixtures, dynamics of gas and vapor bubbles, wave processes in gas-liquid systems, wave propagation in a liquid with vapor bubbles, wave processes on the interface of two media, wave flow of liquid films, and basic calculation formulas for wave dynamics of gas- and vapor-liquid media. The book will be a useful reference for thermophysicists, mechanical engineers, and aerospace engineers.
Download or read book Two Phase Gas Liquid Flow in Pipes with Different Orientations written by Afshin J. Ghajar and published by Springer Nature. This book was released on 2020-03-14 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book The Flow of Gas liquid Mixtures in Pipes written by Robert Landis Hershey and published by . This book was released on 1935 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Measurement of Two Phase Flow Parameters written by Geoffrey Frederick Hewitt and published by . This book was released on 1978 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NBS Special Publication written by and published by . This book was released on 1978 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Air water Mass Transfer written by Steven C. Wilhelms and published by . This book was released on 1991 with total page 820 pages. Available in PDF, EPUB and Kindle. Book excerpt: Very Good,No Highlights or Markup,all pages are intact.
Download or read book Comprehensive Dissertation Index written by and published by . This book was released on 1984 with total page 912 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The flow of gas liquid mixtures in vertical pipes written by Donald James Higson and published by . This book was released on 1960 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Pressure Wave Propagation in Adiabatic Two phase Flow written by Rowland Grayson Evans and published by . This book was released on 1968 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: At present there is a lack of reliable data on the propagation velocity of pressure waves in flowing gas-liquid two-phase systems in the void fraction range from roughly fifty to ninety-five per cent. Classical methods of measuring acoustic velocity such as the acoustic interferometer are shown to be unsuitable for this void fraction range. A technique was developed in which the velocity and strength of shock waves traveling in the mixture was measured. Then by extrapolating the results to a shock wave pressure ratio of unity, the local acoustic velocity is obtained. Measurements of the acoustic velocity were made in a flowing air-water mixture near the inlet and exit of a half-inch diameter vertical pipe fourteen feet in length. These measurements were correlated with the results of void fraction measurements made with quick-closing valves and phase distribution measurements made with an electrical resistance probe. The effect of inlet conditions was investigated by injecting the water along the wall through a porous section, and then repeating the measurements with the water injected at the center with an axial nozzle. Mass velocities used were from 2.57 to 1,310,000 lb/hr.(sq. ft.), void fractions measured were from 0.565 to 0.981, and flow regimes observed were slug, annular, and mist flow. The data indicate that the propagation of acoustic signals is done primarily through the core of the flow. Hence conditions in the core, particularly density inhomogeneities and inlet effects, govern the propagation characteristics. The core propagation model developed offers a logical explanation of the disagreement between existing data and theory. (Author).
Download or read book Annular Two Phase Flow written by Geoffrey Hewitt and published by Elsevier. This book was released on 2013-10-22 with total page 327 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Petroleum Abstracts written by and published by . This book was released on 1996 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hydraulic Research in the United States and Canada written by United States. National Bureau of Standards and published by . This book was released on 1976 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Two phase Flow of Gas liquid Mixtures on Horizontal Helical Pipes written by A. G. Adedigba and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of this study was to investigate hydrodynamic two -phase (namelywater and air) fluid flow characteristics in helical pipes of low amplitude andstraight pipes of the same internal-diameter and constructional material: theresults for the two pipes have then been compared. One of the objectives was to measure pressure, pressure drop and liquidholdup in the two pipes. These are universal dominant parameters in the oiland-gas industry as they significantly impact on the exploitation andconveyance of crude oil from wells or reservoirs to the process plant, where thecrude is refined. The second objective was to examine applications of thehelical pipe. Experiments were performed on three different helical pipes of internaldiameters 25.4 mm, 50 mm and 100 mm and their straight counterparts. Thesingle-phase preliminary experimental results from the 25.4 mm internaldiameterfor both pipes have shown that both pressure and pressure drop arehigher in the helical pipe than in the straight pipe. The friction factors were alsoevaluated for both pipes and found to be higher in the helical pipe than in thestraight pipe. The single-phase and two-phase experimental results for the 50mm internal-diameter pipes confirmed the conclusions from the preliminaryexperimental results. The two-phase results showed that slug flow occurred inthe straight pipe at certain superficial velocities of air and water, whereas at thesame superficial velocities of air and water, slug flow did not ensue in the helicalpipe - instead bubbly flow was observed. Stratified flow occurred in the straightpipe at very low superficial velocities of air and water but under these sameconditions, bubbly flow ensued in the helical pipe. A section of 100 mm internal-diameter helical pipe was installed at somedistance from a catenary-shaped riser, with a view to investigating theeffectiveness of the helical pipe in mitigating severe slugging. The resultsshowed promise as the section of the helical pipe proved to be successful inreducing the menace of severe slugging. This novel finding is regarded as abreakthrough for the oil-and-gas industry in this respect. This is becausehydrocarbon proven reserves in the off-shore (i.e. deep sea-water) environmenthave been estimated to be close to 60%. All previous research studies over thepast decade to provide solution to the problem posed by severe slugging havenot yielded any appreciable results. This discovery also has the advantages ofreducing the demand on the topside (process) facility and the achievement ofstability of liquid production is resulted from the consequent flow assurance inthe pipeline and riser.
Download or read book Two phase Gas liquid Flow Dynamics Part I Flow Oscillations in Transparent Parallel Vertical Heated Channels Part Ii Acoustic Velocity in Two phase Flow written by S. William Gouse (Jr) and published by . This book was released on 1967 with total page 121 pages. Available in PDF, EPUB and Kindle. Book excerpt: A natural and forced convection closed loop with three, parallel, vertical, transparent, heated channels with a constant pressure drop maintained across the heated channels, employing refrigerant 113 as the test fluid, was constructed and operated. Regions of uniform and oscillating flow were mapped for the following range of variables: (a) pressure level at the heated section inlet, 10-20 psig; (b) inlet subcooling to 90F; (c) mass flow rate per test section to 1200 1bm/hr; (d) uniform heat flux to 16,000 BTU/hr-sq ft. The state of the art in the measurement and prediction of the acoustic velocity in one and two-components two-phase mixtures and flows was reviewed and summarized. As the void fraction of a two-phase gas-liquid mixture increases continuously from zero to approximately 60 per cent, the propagation velocity of a pressure wave in the two-phase mixture decreases from its value in the liquid phase to a minimum and begins to rise. At the point where the liquid phase ceases to be continuous there can be a rapid rise in propagation velocity to a value approaching that in the gas phase alone. However, it was observed that in the range of void fractions, from 0.6 to 1.0, there is a range of propagation speeds which depends on the frequency of the propagating signal, the size distribution of discontinuous phase, the nature of the continuous phase, and the strength of the disturbance. (Author).
