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Author : A. Thiruvengadam
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (916 download)
Download or read book On Modelling Cavitation Damage written by A. Thiruvengadam and published by . This book was released on 1966 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : A. Thiruvengadam
Publisher :
ISBN 13 :
Total Pages : 70 pages
Book Rating : 4.:/5 (318 download)
Download or read book On Modeling Cavitation Damage written by A. Thiruvengadam and published by . This book was released on 1966 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: The intensity of bubble collapse is defined as the power transmitted per unit surface area of the bubble when the collapse pressure is a maximum and is given by the square of the collapse pressure divided by the acoustic impedence of the liquid. The efficiency of damage is defined as the ratio of the intensity of erosion of the material to the intensity of bubble collapse. Quantitative analysis is made to show how this efficiency would be affected by various physical effects such as inertia, damping of gas and vapor inside the bubble, heat transfer, compressibility, surface tension and viscosity. Experimental results with vibratory apparatus show that the efficiency of damage is primarily controlled by the damping of non-condensible gases and vapor. At higher temperature viscosity also seems to be important. Within the range of experiments, surface tension of the liquids tested seems to be unimportant. The group of non-dimensional numbers derived from the above analysis as used to formulate a modeling technique to predict the rate of depth of erosion in actual operating hydrodynamic systems. (Author).
Author : William James Rahmeyer
Publisher :
ISBN 13 :
Total Pages : 200 pages
Book Rating : 4.:/5 (318 download)
Download or read book Prediction and Modeling of Cavitation Damage written by William James Rahmeyer and published by . This book was released on 1980 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : R. E. Kohl
Publisher :
ISBN 13 :
Total Pages : 106 pages
Book Rating : 4.:/5 (318 download)
Download or read book Experimental Studies to Establish Scaling Laws for Modeling Cavitation Damage Intensity written by R. E. Kohl and published by . This book was released on 1968 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental facility called the 'rotating foil apparatus' was designed and built to study cavitation erosion in an actual but controllable hydrodynamic system. Test results from this apparatus have confirmed the time dependence of cavitation intensity and also indicated the relationship between erosion intensity (I sub e) and cavitation parameter (sigma) for an NACA 16-021 foil section at 181 ft/sec. A family of the I sub e versus sigma curves is sought for several velocities so that the true relation between I sub e and velocity can be established thus providing a clue of the pressure which causes the bubbles to collapse. Additional testing is planned to determine the relationship between Reynold's number (Re) and erosion intensity (I sub e) for several values of cavitation parameter (sigma). The ultimate objective is modeling cavitation erosion. (Author).
Author : Phoevos Koukouvinis
Publisher : Elsevier
ISBN 13 : 0128233982
Total Pages : 355 pages
Book Rating : 4.1/5 (282 download)
Download or read book Cavitation and Bubble Dynamics written by Phoevos Koukouvinis and published by Elsevier. This book was released on 2021-09-24 with total page 355 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cavitation and Bubble Dynamics: Fundamentals and Applications examines the latest advances in the field of cavitation and multiphase flows, including associated effects such as material erosion and spray instabilities. This book tackles the challenges of cavitation hindrance in the industrial world, while also drawing on interdisciplinary research to inform academic audiences on the latest advances in the fundamentals. Contributions to the book come from a wide range of specialists in areas including fuel systems, hydropower, marine engineering, multiphase flows and computational fluid mechanics, allowing readers to discover novel interdisciplinary experimentation techniques and research results. This book will be an essential tool for industry professionals and researchers working on applications where cavitation hindrance affects reliability, noise, and vibrations. Covers a wide range of cavitation and bubble dynamics phenomena, including shock wave emission, jetting, and luminescence Provides the latest advice about applications including cavitation tunnels, cavitation testing, flow designs to avoid cavitation in pumps and other hydromachinery, and flow lines Describes novel experimental techniques, such as x-ray imaging and new computational techniques
Author : Ki-Han Kim
Publisher : Springer
ISBN 13 : 9401785392
Total Pages : 407 pages
Book Rating : 4.4/5 (17 download)
Download or read book Advanced Experimental and Numerical Techniques for Cavitation Erosion Prediction written by Ki-Han Kim and published by Springer. This book was released on 2014-07-08 with total page 407 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive treatment of the cavitation erosion phenomenon and state-of-the-art research in the field. It is divided into two parts. Part 1 consists of seven chapters, offering a wide range of computational and experimental approaches to cavitation erosion. It includes a general introduction to cavitation and cavitation erosion a detailed description of facilities and measurement techniques commonly used in cavitation erosion studies, an extensive presentation of various stages of cavitation damage (including incubation and mass loss) and insights into the contribution of computational methods to the analysis of both fluid and material behavior. The proposed approach is based on a detailed description of impact loads generated by collapsing cavitation bubbles and a physical analysis of the material response to these loads. Part 2 is devoted to a selection of nine papers presented at the International Workshop on Advanced Experimental and Numerical Techniques for Cavitation Erosion Prediction (Grenoble, France, 1-2 March 2011) representing the forefront of research on cavitation erosion. Innovative numerical and experimental investigations illustrate the most advanced breakthroughs in cavitation erosion research.
Author : David R. Stinebring
Publisher :
ISBN 13 :
Total Pages : 180 pages
Book Rating : 4.:/5 (227 download)
Download or read book Scaling of Cavitation Damage written by David R. Stinebring and published by . This book was released on 1976 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: This investigation has focused on the initial stages of cavitation erosion using a ductile material in a flowing system employing water as the working fluid. The test models were 0.635 cm diameter zero-caliber ogives made of pure annealed aluminum. The aluminum was selected as a material which would be suitable for recording the intensity of cavitation bubble collapse. The damage in the initial stages was in the form of small indentations in the model surface. The greatest damage was within an area corresponding to the cavity closure point on the model. The pits were round depressions usually under 0.1 mm in diameter, with the majority less than 0.05 mm across. During the formation of these pits, it appears that no material was removed from the surface. Using the pure annealed aluminum test probe, a sufficient damage sample could be generated in a relatively short period of time.
Author : Christopher E. Brennen
Publisher : Cambridge University Press
ISBN 13 : 1107644763
Total Pages : 269 pages
Book Rating : 4.1/5 (76 download)
Download or read book Cavitation and Bubble Dynamics written by Christopher E. Brennen and published by Cambridge University Press. This book was released on 2014 with total page 269 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cavitation and Bubble Dynamics deals with fundamental physical processes of bubble dynamics and cavitation for graduate students and researchers.
Author : S. C. Li
Publisher : World Scientific
ISBN 13 : 1860942571
Total Pages : 492 pages
Book Rating : 4.8/5 (69 download)
Download or read book Cavitation of Hydraulic Machinery written by S. C. Li and published by World Scientific. This book was released on 2000 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume in the Hydraulic Machinery Book series deals with cavitation and its effects in turbines and pumps. After introducing cavitation and its relation with hydraulic machines, the invited contributors throughout the world review in detail relevant cavitation subjects from fundamental phenomena to various problems and solution measures in hydraulic machines. The authors are internationally recognized experts in their fields.
Author : Jean-Pierre Franc
Publisher : Springer Science & Business Media
ISBN 13 : 1402022336
Total Pages : 321 pages
Book Rating : 4.4/5 (2 download)
Download or read book Fundamentals of Cavitation written by Jean-Pierre Franc and published by Springer Science & Business Media. This book was released on 2006-01-22 with total page 321 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book treats cavitation, which is a unique phenomenon in the field of hyd- dynamics, although it can occur in any hydraulic machinery such as pumps, propellers, artificial hearts, and so forth. Cavitation is generated not only in water, but also in any kind of fluid, such as liquid hydrogen. The generation of cavitation can cause severe damage in hydraulic machinery. Therefore, the prevention of cavitation is an important concern for designers of hydraulic machinery. On the contrary, there is great potential to utilize cavitation in various important applications, such as environmental protection. There have been several books published on cavitation, including one by the same authors. This book differs from those previous ones, in that it is both more physical and more theoretical. Any theoretical explanation of the cavitation phenomenon is rather difficult, but the authors have succeeded in explaining it very well, and a reader can follow the equations easily. It is an advantage in reading this book to have some understanding of the physics of cavitation. Therefore, this book is not an introductory text, but a book for more advanced study. However, this does not mean that this book is too difficult for a beginner, because it explains the cavitation phenomenon using many figures. Therefore, even a beginner on cavitation can read and can understand what cavitation is. If the student studies through this book (with patience), he or she can become an expert on the physics of cavitation.
Author : Christopher E. Brennen
Publisher : Cambridge University Press
ISBN 13 : 1139497278
Total Pages : 287 pages
Book Rating : 4.1/5 (394 download)
Download or read book Hydrodynamics of Pumps written by Christopher E. Brennen and published by Cambridge University Press. This book was released on 2011-03-28 with total page 287 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydrodynamics of Pumps is a reference for pump experts and a textbook for advanced students. It examines the fluid dynamics of liquid turbomachines, particularly pumps, focusing on special problems and design issues associated with the flow of liquid through a rotating machine. There are two characteristics of a liquid that lead to problems and cause a significantly different set of concerns than those in gas turbines. These are the potential for cavitation and the high density of liquids, which enhances the possibility of damaging, unsteady flows and forces. The book begins with an introduction to the subject, including cavitation, unsteady flows and turbomachinery, basic pump design and performance principles. Chapter topics include flow features, cavitation parameters and inception, bubble dynamics, cavitation effects on pump performance, and unsteady flows and vibration in pumps - discussed in the three final chapters. The book is richly illustrated and includes many practical examples.
Author : A. Thiruvengadam
Publisher :
ISBN 13 :
Total Pages : 152 pages
Book Rating : 4.:/5 (359 download)
Download or read book Scaling Laws for Cavitation Erosion written by A. Thiruvengadam and published by . This book was released on 1971 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the report, six scaling laws are derived and used to investigate the feasibility of modeling cavitation erosion. The velocity scale and size scale are studied with regard to six nondimensional ratios, namely. the erosion number, the relative nuclei size, the Weber number, the cavitation number, the cavitation inception number and the degree of cavitation. These scaling laws indicate that it is possible to model erosion in the laboratory and to predict the prototype performance. In addition, these scaling laws may be used to explain many currently available experimental observations.
Author : Mechanical Failures Prevention Group. Meeting
Publisher : CUP Archive
ISBN 13 : 9780521264204
Total Pages : 248 pages
Book Rating : 4.2/5 (642 download)
Download or read book Mechanical Properties, Performance, and Failure Modes of Coatings written by Mechanical Failures Prevention Group. Meeting and published by CUP Archive. This book was released on 1984-08-31 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of coatings in industry is growing and will continue to grow because of the economic and technical advantages they offer over uncoated materials. Although a wide variety of materials and application of techniques are available, much less is known about the properties of specific coatings and their measurement. This 1984 volume contains some 26 papers that were presented at a 1983 symposium organized to explore these questions. The symposium was divided into five sessions dealing with coating technologies, measurement of coating properties, marine coatings, field applied coatings for corrosion control and tribological coatings.
Author : Luca d'Agostino
Publisher : Springer Science & Business Media
ISBN 13 : 3211766693
Total Pages : 355 pages
Book Rating : 4.2/5 (117 download)
Download or read book Fluid Dynamics of Cavitation and Cavitating Turbopumps written by Luca d'Agostino and published by Springer Science & Business Media. This book was released on 2008-04-20 with total page 355 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book focuses on the fluid dynamics of cavitation with special reference to high power density turbopumps, where it represents the major source of performance and life degradation. While covering the more fundamental aspects of cavitation and the main kinds of cavitating flows, there is focus on the hydrodynamics and instabilities of cavitating turbopumps. The book also illustrates the alternative approaches for modeling and engineering simulation of cavitating flows.
Author : E. L. Bourodēmos
Publisher :
ISBN 13 :
Total Pages : 64 pages
Book Rating : 4.:/5 (11 download)
Download or read book Mechanisms of Cavitation Erosion Damage and Related Models and Scaling Studies of the NASL Rotating Disk Facility written by E. L. Bourodēmos and published by . This book was released on 1970 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Walter S. Cunnan
Publisher :
ISBN 13 :
Total Pages : 36 pages
Book Rating : 4.:/5 (31 download)
Download or read book Cavitation Damage and the Effect of Fluid Temperature on the Performance of an Axial-flow Pump in Liquid Sodium written by Walter S. Cunnan and published by . This book was released on 1969 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : C.-O. Leiber
Publisher : Elsevier
ISBN 13 : 0080527620
Total Pages : 617 pages
Book Rating : 4.0/5 (85 download)
Download or read book Assessment of Safety and Risk with a Microscopic Model of Detonation written by C.-O. Leiber and published by Elsevier. This book was released on 2003-04-25 with total page 617 pages. Available in PDF, EPUB and Kindle. Book excerpt: This unique book is a store of less well-known explosion anddetonation phenomena, including also data and experiences related tosafety risks. It highlights the shortcomings of the currentengineering codes based on a classical plane wave model of thephenomenon, and why these tools must fail. For the first time all the explosion phenomena are described in termsof proper assemblages of hot spots, which emit pressure waves andassociated near field terms in flow. Not all of the approaches arenew. Some even date back to the 19th century or earlier.. What is newis the application of these approaches to explosion phenomena. Inorder to make these tools easily available to the current detonationphysicist, basic acoustics is therefore also addressed. Whereas the current plane wave, homogeneous flow detonation physicsis an excellent engineering tool for numerical predictions undergiven conditions, the multi-hot-spot-model is an additional tool foranalyzing phenomena that cannot be explained by classicalcalculations. The real benefit comes from being able to understand,without any artificial assumptions, the whole phenomenology ofdetonations and explosions. By specifying pressure generatingmechanisms, one is able to see that the current treatment of thedetonics of energetic materials is only a very special - but powerful- case of explosion events and hazards. It becomes clear thatphysical explosions must be taken into account in any safetyconsiderations. In these terms it is easy to understand why evenliquid carbon dioxide and inert silo materials can explode. A unique collection of unexpected events, which might surprise evenspecialists, has resulted from the evaluation of the model. Thereforethis book is valuable for each explosion and safety scientist for theunderstanding and forecasting of unwanted events. The text mainlyaddresses the next generation of explosion and detonation scientists,with the goal of promoting the science of detonation on a newphysical basis. For this reason gaps in current knowledge are alsoaddressed. The science of explosions is not fully mature, but isstill in its beginning - and the tools necessary for furthering theunderstanding of these phenomena have been with us for centuries.
