Characterization of Cavitation Bubbles and Sonoluminescence

Characterization of Cavitation Bubbles and Sonoluminescence PDF Author: Rachel Pflieger
Publisher: Springer
ISBN: 3030117170
Category : Science
Languages : en
Pages : 74

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Book Description
This book presents the latest research on fundamental aspects of acoustic bubbles, and in particular on various complementary ways to characterize them. It starts with the dynamics of a single bubble under ultrasound, and then addresses few-bubble systems and the formation and development of bubble structures, before briefly reviewing work on isolated bubbles in standing acoustic waves (bubble traps) and multibubble systems where translation and interaction of bubbles play a major role. Further, it explores the interaction of bubbles with objects, and highlights non-spherical bubble dynamics and the respective collapse geometries. It also discusses the important link between bubble dynamics and energy focusing in the bubble, leading to sonochemistry and sonoluminescence. The second chapter focuses on the emission of light by cavitation bubbles at collapse (sonoluminescence) and on the information that can be gained by sonoluminescence (SL) spectroscopy, e.g. the conditions reached inside the bubbles or the nature of the excited species formed. This chapter also includes a section on the use of SL intensity measurement under pulsed ultrasound as an indirect way to estimate bubble size and size distribution. Lastly, since one very important feature of cavitation systems is their sonochemical activity, the final chapter presents chemical characterizations, the care that should be taken in using them, and the possible visualization of chemical activity. It also explores the links between bubble dynamics, SL spectroscopy and sonochemical activity. This book provides a fundamental basis for other books in the Molecular Science: Ultrasound and Sonochemistry series that are more focused on applied aspects of sonochemistry. A basic knowledge of the characterization of cavitation bubbles is indispensable for the optimization of sonochemical processes, and as such the book is useful for specialists (researchers, engineers, PhD students etc.) working in the wide area of ultrasonic processing.

Characterization of Cavitation Bubbles and Sonoluminescence

Characterization of Cavitation Bubbles and Sonoluminescence PDF Author: Rachel Pflieger
Publisher: Springer
ISBN: 3030117170
Category : Science
Languages : en
Pages : 74

Get Book

Book Description
This book presents the latest research on fundamental aspects of acoustic bubbles, and in particular on various complementary ways to characterize them. It starts with the dynamics of a single bubble under ultrasound, and then addresses few-bubble systems and the formation and development of bubble structures, before briefly reviewing work on isolated bubbles in standing acoustic waves (bubble traps) and multibubble systems where translation and interaction of bubbles play a major role. Further, it explores the interaction of bubbles with objects, and highlights non-spherical bubble dynamics and the respective collapse geometries. It also discusses the important link between bubble dynamics and energy focusing in the bubble, leading to sonochemistry and sonoluminescence. The second chapter focuses on the emission of light by cavitation bubbles at collapse (sonoluminescence) and on the information that can be gained by sonoluminescence (SL) spectroscopy, e.g. the conditions reached inside the bubbles or the nature of the excited species formed. This chapter also includes a section on the use of SL intensity measurement under pulsed ultrasound as an indirect way to estimate bubble size and size distribution. Lastly, since one very important feature of cavitation systems is their sonochemical activity, the final chapter presents chemical characterizations, the care that should be taken in using them, and the possible visualization of chemical activity. It also explores the links between bubble dynamics, SL spectroscopy and sonochemical activity. This book provides a fundamental basis for other books in the Molecular Science: Ultrasound and Sonochemistry series that are more focused on applied aspects of sonochemistry. A basic knowledge of the characterization of cavitation bubbles is indispensable for the optimization of sonochemical processes, and as such the book is useful for specialists (researchers, engineers, PhD students etc.) working in the wide area of ultrasonic processing.

Sonochemistry and Sonoluminescence

Sonochemistry and Sonoluminescence PDF Author: L.A. Crum
Publisher: Springer Science & Business Media
ISBN: 9401592152
Category : Science
Languages : en
Pages : 416

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Book Description
Sonochemistry is studied primarily by chemists and sonoluminescence mainly by physicists, but a single physical phenomenon - acoustic cavitation - unites the two areas. The physics of cavitation bubble collapse, is relatively well understood by acoustical physicists but remains practically unknown to the chemists. By contrast, the chemistry that gives rise to electromagnetic emissions and the acceleration of chemical reactions is familiar to chemists, but practically unknown to acoustical physicists. It is just this knowledge gap that the present volume addresses. The first section of the book addresses the fundamentals of cavitation, leading to a more extensive discussion of the fundamentals of cavitation bubble dynamics in section two. A section on single bubble sonoluminescence follows. The two following sections address the new scientific discipline of sonochemistry, and the volume concludes with a section giving detailed descriptions of the applications of sonochemistry. The mixture of tutorial lectures and detailed research articles means that the book can serve as an introduction as well as a comprehensive and detailed review of these two interesting and topical subjects.

Cavitation

Cavitation PDF Author: F Ronald Young
Publisher: World Scientific
ISBN: 1783261862
Category : Science
Languages : en
Pages : 444

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Book Description
First published by McGraw-Hill in 1989, this book provides a unified treatment of cavitation, a phenomenon which extends across the boundaries of many fields. The approach is wide-ranging and the aim is to give due consideration to the many aspects of cavitation in proportion to their importance. Particular attention is paid to the diverse situations in which cavitation occurs and to its practical applications. Contents: Bubble DynamicsAcoustic CavitationHydrodynamic CavitationSonoluminescenceSonochemistryBubble Spectrum AnalysersApplications Readership: Mechanical, civil and structural engineers, as well as chemists and medical physicists. Keywords:Cavitation;Bubble Dynamics;Acoustic Cavitation;Hydrodynamic Cavitation;Sonoluminescence;Bubble Spectrum AnalysersReviews:”For those who have chosen cavitation as a field of study, the publication of this book is an event for celebration. It signifies that the field has come of age. For those without previous knowledge of this many-faceted subject, the book provides an opportunity to become well acquainted.”Here Dr Young has recognized, and met, the need for a single-authored volume which brings together material from many technical reports, book chapters, student theses and countless journal publications. The material includes basic hydrodynamical and acoustical theory, as well as experimental findings in physics, chemistry, and biology laboratories. Cavitation-related phenomena covered include such diverse examples as erosion of ship propellers, ultrasonic cleaning, detection of high energy particles, fragmentation of biological cells and sonoluminescence.”Obviously, one's education is not complete without an understanding of the possibilities offered by cavitation in its various forms. Dr Young's carefully constructed and wide-ranging book provides readers an opportunity to become informed on this matter, whether in depth, or in breadth.”Professor Wesley L Nyborg University of Vermont

Sonoluminescence

Sonoluminescence PDF Author: F. Ronald Young
Publisher: CRC Press
ISBN: 1135486026
Category : Science
Languages : en
Pages : 371

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Book Description
While it is still a mystery of how a low-energy-density sound wave can concentrate enough energy in a small enough volume to cause the emission of light, research in acoustic cavitation and sonoluminescence has lead to plausible theories in which the source of light can be experimentally sustained. It has also lead to promising applications, such a

Acoustic Cavitation and Bubble Dynamics

Acoustic Cavitation and Bubble Dynamics PDF Author: Kyuichi Yasui
Publisher: Springer
ISBN: 3319682377
Category : Science
Languages : en
Pages : 131

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Book Description
This brief explains in detail fundamental concepts in acoustic cavitation and bubble dynamics, and describes derivations of the fundamental equations of bubble dynamics in order to support those readers just beginning research in this field. Further, it provides an in-depth understanding of the physical basis of the phenomena. With regard to sonochemistry, the brief presents the results of numerical simulations of chemical reactions inside a bubble under ultrasound, especially for a single-bubble system and including unsolved problems. Written so as to be accessible both with and without prior knowledge of fundamental fluid dynamics, the brief offers a valuable resource for students and researchers alike, especially those who are unfamiliar with this field. A grasp of fundamental undergraduate mathematics such as partial derivative and fundamental integration is advantageous; however, even without any background in mathematics, readers can skip the equations and still understand the fundamental physics of the phenomena using the book’s wealth of illustrations and figures. As such, it is also suitable as an introduction to the field.

Cavitation and Bubble Dynamics

Cavitation and Bubble Dynamics PDF Author: Christopher E. Brennen
Publisher: Cambridge University Press
ISBN: 1107644763
Category : Mathematics
Languages : en
Pages : 269

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Book Description
Cavitation and Bubble Dynamics deals with fundamental physical processes of bubble dynamics and cavitation for graduate students and researchers.

Handbook of Ultrasonics and Sonochemistry

Handbook of Ultrasonics and Sonochemistry PDF Author: Muthupandian Ashokkumar
Publisher:
ISBN: 9789812874702
Category : Ultrasonics
Languages : en
Pages :

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Book Description


Cavitation and Bubble Dynamics

Cavitation and Bubble Dynamics PDF Author: Christopher Earls Brennen
Publisher: Cambridge University Press
ISBN: 1107513588
Category : Technology & Engineering
Languages : en
Pages :

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Book Description
Cavitation and Bubble Dynamics deals with the fundamental physical processes of bubble dynamics and the phenomenon of cavitation. It is ideal for graduate students and research engineers and scientists, and a basic knowledge of fluid flow and heat transfer is assumed. The analytical methods presented are developed from basic principles. The book begins with a chapter on nucleation and describes both the theory and observations in flowing and non-flowing systems. Three chapters provide a systematic treatment of the dynamics and growth, collapse, or oscillation of individual bubbles in otherwise quiescent fluids. The following chapters summarise the motion of bubbles in liquids, describe some of the phenomena that occur in homogeneous bubbly flows, with emphasis on cloud cavitation, and summarise some of the experimental observations of cavitating flows. The last chapter provides a review of free streamline methods used to treat separated cavity flows with large attached cavities.

Ultrafine Bubbles

Ultrafine Bubbles PDF Author: Koichi Terasaka
Publisher: CRC Press
ISBN: 1000333639
Category : Science
Languages : en
Pages : 294

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Book Description
Ultrafine bubbles (UFBs) are gas-filled bubbles with a diameter smaller than 1 μm. They are sometimes called bulk nanobubbles because these are not on a solid surface but inside a bulk liquid (water). They are already being used in commercial processes such as cleaning and plant cultivation. However, many mysteries still exist with respect to UFBs, such as mechanisms of stability, OH radical formation, and biological and medical effects. This is the first book on UFBs that reviews research done on them. It is helpful for those interested in the fundamentals of this emerging field and its applications, including cleaning, biological, medical, and dental students and researchers.

The Acoustic Bubble

The Acoustic Bubble PDF Author: T Leighton
Publisher: Academic Press
ISBN: 0323144136
Category : Science
Languages : en
Pages : 641

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Book Description
The Acoustic Bubble describes the interaction of acoustic fields with bubbles in liquid. The book consists of five chapters. Chapter 1 provides a basic introduction to acoustics, including some of the more esoteric phenomena that can be seen when high-frequency high-intensity underwater sound is employed. Chapter 2 discusses the nucleation of cavitation and basic fluid dynamics, while Chapter 3 draws together the acoustics and bubble dynamics to discuss the free oscillation of a bubble and acoustic emissions from such activity. The acoustic probes that are often applied to study the behavior of a bubble when an externally-applied acoustic field drives it into oscillation is deliberated in Chapter 4. The last chapter outlines a variety of effects associated with acoustically-induced bubble activity. The bubble detection, sonoluminescence, sonochemistry, and pulse enhancement are also covered. This publication is a good reference for physics and engineering students and researchers intending to acquire knowledge of the acoustic interactions of acoustic fields with bubbles.