Author: William J. GallowayPublisher:
ISBN:
Category :
Languages : en
Pages : 138
Book Description
An Experimental Study of Acoustically Induced Cavitation
Author: William J. GallowayAn Experimental Study of Acoustically Induced Cavitation in Liquids
Author: William J. GallowayExperimental Study of Acoustic Pressure and Cavitation Fields in a Megasonic Tank
Author: Roman GoukThe Acoustic Bubble
Author: T LeightonPublisher: Academic Press
ISBN: 0323144136
Category : Science
Languages : en
Pages : 641
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.
Report - Naval Ship Research and Development Center
Author: David W. Taylor Naval Ship Research and Development CenterPublisher:
ISBN:
Category : Shipbuilding
Languages : en
Pages : 836
Book Description
Acoustic Cavitation and Bubble Dynamics
Author: Kyuichi YasuiPublisher: Springer
ISBN: 3319682377
Category : Science
Languages : en
Pages : 131
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.
An Experimental Investigation of Acoustic Cavitation as a Fragmentation Mechanism of Molten Tin Droplets in Water
Author: Trond Arnold BjørnardPublisher:
ISBN:
Category : Explosions
Languages : en
Pages : 224
Book Description
A series of experiments were performed where single molten tin droplets of known size, shape and temperature were dropped from a low height into a pool of distilled water. The pressure waves emanating from the hot droplets were recorded by a transducer in the coolant for varying initial droplet and pool temperatures. The results obtained show well defined patterns of pressure frequency and magnitude behavior. Application of the results to the acoustic cavitation theory of fragmentation shows that the pressure excursions within the molten tin are considerably less severe than was predicted. The likelihood that acoustic cavitation caused the observed fragmentation is therefore considerably diminished. Further, the results strongly suggest that spontaneous nucleation of the coolant did not cause the observed fragmentation, while it appears that another mechanism linked to the observed dwell time behavior was responsible. Further theoretical and experimental work is required to establish the nature of this mechanism.
Sonochemistry and the Acoustic Bubble
Author: Franz GrieserPublisher: Elsevier
ISBN: 0128017260
Category : Science
Languages : en
Pages : 299
Book Description
Sonochemistry and the Acoustic Bubble provides an introduction to the way ultrasound acts on bubbles in a liquid to cause bubbles to collapse violently, leading to localized 'hot spots' in the liquid with temperatures of 5000° celcius and under pressures of several hundred atmospheres. These extreme conditions produce events such as the emission of light, sonoluminescence, with a lifetime of less than a nanosecond, and free radicals that can initiate a host of varied chemical reactions (sonochemistry) in the liquid, all at room temperature. The physics and chemistry behind the phenomena are simply, but comprehensively presented. In addition, potential industrial and medical applications of acoustic cavitation and its chemical effects are described and reviewed. The book is suitable for graduate students working with ultrasound, and for potential chemists and chemical engineers wanting to understand the basics of how ultrasound acts in a liquid to cause chemical and physical effects. - Experimental methods on acoustic cavitation and sonochemistry - Helps users understand how to readily begin experiments in the field - Provides an understanding of the physics behind the phenomenon - Contains examples of (possible) industrial applications in chemical engineering and environmental technologies - Presents the possibilities for adopting the action of acoustic cavitation with respect to industrial applications
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