Air Bubble Entrainment in Free-Surface Turbulent Shear Flows

Air Bubble Entrainment in Free-Surface Turbulent Shear Flows PDF Author: Hubert Chanson
Publisher: Elsevier
ISBN: 0080526896
Category : Science
Languages : en
Pages : 403

Get Book Here

Book Description
This book develops an analysis of the air entrainment processes in free-surface flows. These flows are investigated as homogeneous mixtures with variable density. Several types of air-water free-surface flows are studied: plunging jet flows, open channel flows, and turbulent water jets discharging into air. Experimental observations reported by the author confirm the concept that the air-water mixture behaves as a homogeneous compressible fluid in each case. This book will be of great interest to professionals working in many fields of engineering: chemical, civil, environmental, mechanical, mining, metallurgy, and nuclear. Covers new information on the air-water flow field: air bubble distributions, air-water velocity profiles, air bubble sizes and bubble-turbulence interactions Features new analysis is developed for each flow configuration and compared successfully with model and prototype data Includes over 372 references and more than 170 figures with over 60 photographs Presents useful information for design engineers and research-and-development scientists who require a better understanding of the fluid mechanics of air-water flows

Air Bubble Entrainment in Free-Surface Turbulent Shear Flows

Air Bubble Entrainment in Free-Surface Turbulent Shear Flows PDF Author: Hubert Chanson
Publisher: Elsevier
ISBN: 0080526896
Category : Science
Languages : en
Pages : 403

Get Book Here

Book Description
This book develops an analysis of the air entrainment processes in free-surface flows. These flows are investigated as homogeneous mixtures with variable density. Several types of air-water free-surface flows are studied: plunging jet flows, open channel flows, and turbulent water jets discharging into air. Experimental observations reported by the author confirm the concept that the air-water mixture behaves as a homogeneous compressible fluid in each case. This book will be of great interest to professionals working in many fields of engineering: chemical, civil, environmental, mechanical, mining, metallurgy, and nuclear. Covers new information on the air-water flow field: air bubble distributions, air-water velocity profiles, air bubble sizes and bubble-turbulence interactions Features new analysis is developed for each flow configuration and compared successfully with model and prototype data Includes over 372 references and more than 170 figures with over 60 photographs Presents useful information for design engineers and research-and-development scientists who require a better understanding of the fluid mechanics of air-water flows

Wastewater Hydraulics

Wastewater Hydraulics PDF Author: Willi H. Hager
Publisher: Springer Science & Business Media
ISBN: 3642113834
Category : Science
Languages : en
Pages : 660

Get Book Here

Book Description
The second, enlarged edition of this established reference integrates many new insights into wastewater hydraulics. This work serves as a reference for researchers but also is a basis for practicing engineers. It can be used as a text book for graduate students, although it has the characteristics of a reference book. It addresses mainly the sewer hydraulician but also general hydraulic engineers who have to tackle many a problem in daily life, and who will not always find an appropriate solution. Each chapter is introduced with a summary to outline the contents. To illustrate application of the theory, examples are presented to explain the computational procedures. Further, to relate present knowledge to the history of hydraulics, some key dates on noteworthy hydraulicians are quoted. A historical note on the development of wastewater hydraulics is also added. References are given at the end of each chapter, and they are often helpful starting points for further reading. Each notation is defined when introduced, and listed alphabetically at the end of each chapter. This new edition includes in particular sideweirs with throttling pipes, drop shafts with an account on the two-phase flow features, as well as conduit choking due to direct or undular hydraulic jumps.

Free-Surface Hydraulics

Free-Surface Hydraulics PDF Author: Dr J M Townson
Publisher: CRC Press
ISBN: 1482267217
Category : Architecture
Languages : en
Pages : 239

Get Book Here

Book Description
Free-Surface Hydraulics is a unified, pragmatic account of the water surface and its underlying mechanics. Based on the author's 30 years experience of research and teaching in civil engineering hydraulics, this text is designed to help students achieve a coherent understanding More...of a subject often obscured by empirical detail and unstructured approaches. The text leads progressively from hydrostatics, through steady and unsteady flows, to waves and tides. The author draws a careful distinction between kinematic and dynamic motions - the latter he treats at some length by the method of characteristics, regarded as one of the more rigorous approaches to unsteady flow. A special feature is the final chapter, devoted to the disruption of free surfaces by air and bubble motion, especially in pipes.

Air Problems in Pipelines

Air Problems in Pipelines PDF Author: Manuela Escarameia
Publisher:
ISBN: 9781898485117
Category : Fluid dynamics
Languages : en
Pages : 52

Get Book Here

Book Description


Collision Phenomena in Liquids and Solids

Collision Phenomena in Liquids and Solids PDF Author: Alexander L. Yarin
Publisher: Cambridge University Press
ISBN: 1107147905
Category : Science
Languages : en
Pages : 629

Get Book Here

Book Description
A unique and in-depth discussion uncovering the unifying features of collision phenomena in liquids and solids, along with applications.

Air Entrainment in Free-surface Flow

Air Entrainment in Free-surface Flow PDF Author: I.R. Wood
Publisher: Routledge
ISBN: 1351467786
Category : Science
Languages : en
Pages : 152

Get Book Here

Book Description
This monograph is aimed at the practising hydraulic engineer. Work on it commenced at Professor Naudascher's instigation in 1982. Over the next six years all or some of the authors discussed progress at IAHR sponsored conferences at Esslingen, Melbourne, Lausanne and Beijing. With the authors scattered throughout the world, and all with other responsibilities, progress was bound to be slow. Completion was further delayed by the great increase in published technical literature in this area over the period 1982-1988. This literature continues to expand and with it our understanding of the air water flow phenomena. The monograph must therefore be seen as the authors' views on the state of the art around 1988. More recent references have been included for completeness.This monograph has been a joint effort with most authors making suggestions and contributions to more than one chapter. Nevertheless, the chapter authors are primarily responsible for the material in their chapters.Throughout the monograph symbols are defined when they are fist introduced and a list of symbols is included at the end of each chapter.Many other people have contributed to this monograph, but the authors would particularly like to acknowledge the assistance given by Professor John McNown who has read, commented on and improved the style of the complete monograph.

Numerical Solution of Partial Differential Equations on Parallel Computers

Numerical Solution of Partial Differential Equations on Parallel Computers PDF Author: Are Magnus Bruaset
Publisher: Springer Science & Business Media
ISBN: 3540316191
Category : Mathematics
Languages : en
Pages : 491

Get Book Here

Book Description
Since the dawn of computing, the quest for a better understanding of Nature has been a driving force for technological development. Groundbreaking achievements by great scientists have paved the way from the abacus to the supercomputing power of today. When trying to replicate Nature in the computer’s silicon test tube, there is need for precise and computable process descriptions. The scienti?c ?elds of Ma- ematics and Physics provide a powerful vehicle for such descriptions in terms of Partial Differential Equations (PDEs). Formulated as such equations, physical laws can become subject to computational and analytical studies. In the computational setting, the equations can be discreti ed for ef?cient solution on a computer, leading to valuable tools for simulation of natural and man-made processes. Numerical so- tion of PDE-based mathematical models has been an important research topic over centuries, and will remain so for centuries to come. In the context of computer-based simulations, the quality of the computed results is directly connected to the model’s complexity and the number of data points used for the computations. Therefore, computational scientists tend to ?ll even the largest and most powerful computers they can get access to, either by increasing the si e of the data sets, or by introducing new model terms that make the simulations more realistic, or a combination of both. Today, many important simulation problems can not be solved by one single computer, but calls for parallel computing.

Transient Free Surface Flows in Building Drainage Systems

Transient Free Surface Flows in Building Drainage Systems PDF Author: John Swaffield
Publisher: Routledge
ISBN: 1136929576
Category : Technology & Engineering
Languages : en
Pages : 307

Get Book Here

Book Description
Climate change will present a series of challenges to engineers concerned with the provision of both building internal appliance drainage networks and rainwater systems within the building boundary, generally identified as the connection to the sewer network. Climate change is now recognised as presenting both water shortage and enhanced rainfall design scenarios. In response to predictions about immanent climate change Transient Free Surface Flows in Building Drainage Systems addresses problems such as the reduction in water available to remove waste from buildings, and conversely, the increase in frequency of tropical-type torrential rain. Starting with introductory chapters that explain the theories and principles of solid transport, free surface flows within drainage networks, and attenuating appliance discharge flows, this book allows readers from a variety of backgrounds to fully engage with this crucial subject matter. Later chapters apply these theories to the design of sanitary and rainwater systems. Case studies highlight the applicability of the method in assessing the appropriateness of design approaches. In this unique book, research in modelling for free surface flows at Edinburgh’s Heriot-Watt University is drawn on to provide a highly authoritative, physics-based study of this complex engineering issue.

Swirling Flow Problems at Intakes

Swirling Flow Problems at Intakes PDF Author: J. Knauss
Publisher: Routledge
ISBN: 1351412159
Category : Technology & Engineering
Languages : en
Pages : 125

Get Book Here

Book Description
Fundamentals of vortex intake flow; Results theoretical & experimental work; Prediction of critical submergence; Modeling of vortices & swirling flows; Design; Intake structures; Pump sumps; Vortex-flow intakes. This volume forms an essential reference work for anyone involved in intakes, either as a practising design engineer or research worker. Water Power & Dam Constr., July 1988.The book is essential reading for postgraduate students & researchers alike and a very valuable aid to design engineers. Hydrol.Sc.Jrl., 33(3), 1988.

Self-aerated Spillway Flow

Self-aerated Spillway Flow PDF Author: Steven C. Wilhelms
Publisher:
ISBN:
Category : Hydraulics
Languages : en
Pages : 634

Get Book Here

Book Description