Cavitating Flows
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The Hydrodynamics Of Cavitating Flows
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Author : Alexey G.. Terentiev
language : en
Publisher:
Release Date : 2011
The Hydrodynamics Of Cavitating Flows written by Alexey G.. Terentiev and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with Cavitation categories.
Experimental Study Of The Structure And Dynamics Of Cavitating Flows
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Author : Guangjian Zhang
language : en
Publisher: Scientific Research Publishing, Inc. USA
Release Date : 2023-11-06
Experimental Study Of The Structure And Dynamics Of Cavitating Flows written by Guangjian Zhang and has been published by Scientific Research Publishing, Inc. USA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-11-06 with Antiques & Collectibles categories.
Cavitation refers to a distinctive occurrence within liquid flows where there is a phase change process involving the rapid transformation of liquid into vapour in regions of low pressure, followed by collapsing or implosion when pressure rises again. The study of cavitation dates back to the late 19th century. While the term “cavitation” was originally coined by R. E. Froude and first documented by Barnaby and Thornycroft in 1895, the concept had been speculated upon much earlier by L. Euler in his 1754 theory on water turbines. However, the phenomenon of cavitation was initially observed and examined by Barnaby and Parsons in 1893. They identified that the formation of vapour bubbles on propeller blades had led to the failure of the sea trial of the British high-speed warship HMS Daring in 1885. In 1895, Parsons established the first water tunnel dedicated to cavitation research, revealing the connection between cavitation and propeller damage. The theoretical groundwork for cavitation research was laid by Rayleigh in 1917, as he successfully addressed the collapse of an empty cavity within a substantial liquid mass. Since then, numerous research work has been published on cavitating flow.
Experimental And Numerical Examination Of Cavitating Flows
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Author : Po-Wen Yu
language : en
Publisher:
Release Date : 1995
Experimental And Numerical Examination Of Cavitating Flows written by Po-Wen Yu and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with categories.
Finite Element Simulation Of Simple Three Dimensional Fully Cavitating Flows
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Author : Peter Y. Ko
language : en
Publisher:
Release Date : 1979
Finite Element Simulation Of Simple Three Dimensional Fully Cavitating Flows written by Peter Y. Ko and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1979 with Cavitation categories.
Based on potential flow theory, a formulation is given for three-dimensional fully cavitating flow with a Riabouchinsky model. The model is nonlinear and the location of the free surface of the cavity is not known priori. Therefore, an iterative procedure is used to locate the free surface boundary. The employment of a trial-free-boundary approach effectively reduces the fully nonlinear model to a linear one, and the solution at each iteration is obtained by means of the finite element method (FEM). Examples studied were fully cavitating flow past flat plates in a water tunnel. Results are given for pure drag flows past circular and elliptic plates and a lifting flow past a circular plate. Because of the change in flow boundary conditions at the separation edge and the failure of the FEM to resolve these conditions accurately, the ability of the numerical solution to maintain a constant pressure over the entire cavity decreases as the three dimensionality of the free surface increases. However, the present procedure produces absolutely stable iterations and shows no sign of drifting of the free surface. It is found that satisfaction of a tangent separation condition of the free surface from the flat plate body is crucial for the stability of the iterative procedure. Grid refinement in both the streamwise and transverse directions reduces the computational error. While free surface movement between iterations is a useful convergence criterion, a flow-rate balance between upstream and downstream cross-sections appears not to be a good criterion.
Fluid Dynamics Of Cavitation And Cavitating Turbopumps
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Author : Luca d'Agostino
language : en
Publisher: Springer Science & Business Media
Release Date : 2008-04-20
Fluid Dynamics Of Cavitation And Cavitating Turbopumps written by Luca d'Agostino and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-04-20 with Technology & Engineering categories.
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.
Numerical Modeling Of Natural And Ventilated Cavitating Flows
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Author : Qiao Qin
language : en
Publisher:
Release Date : 2004
Numerical Modeling Of Natural And Ventilated Cavitating Flows written by Qiao Qin and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with Cavitation categories.
Cavitation And Bubble Dynamics
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Author : Phoevos Koukouvinis
language : en
Publisher: Elsevier
Release Date : 2021-09-24
Cavitation And Bubble Dynamics written by Phoevos Koukouvinis and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-09-24 with Science categories.
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
Three Dimensional Effects In Cavitating Flows
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Author : P. Bassanini
language : en
Publisher:
Release Date : 1969
Three Dimensional Effects In Cavitating Flows written by P. Bassanini and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1969 with Cavitation categories.
Cavitation Instabilities And Rotordynamic Effects In Turbopumps And Hydroturbines
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Author : Luca d'Agostino
language : en
Publisher: Springer
Release Date : 2017-03-17
Cavitation Instabilities And Rotordynamic Effects In Turbopumps And Hydroturbines written by Luca d'Agostino and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-03-17 with Technology & Engineering categories.
The book provides a detailed approach to the physics, fluid dynamics, modeling, experimentation and numerical simulation of cavitation phenomena, with special emphasis on cavitation-induced instabilities and their implications on the design and operation of high performance turbopumps and hydraulic turbines. The first part covers the fundamentals (nucleation, dynamics, thermodynamic effects, erosion) and forms of cavitation (attached cavitation, cloud cavitation, supercavitation, vortex cavitation) relevant to hydraulic turbomachinery, illustrates modern experimental techniques for the characterization, visualization and analysis of cavitating flows, and introduces the main aspects of the hydrodynamic design and performance of axial inducers, centrifugal turbopumps and hydo-turbines. The second part focuses on the theoretical modeling, experimental analysis, and practical control of cavitation-induced fluid-dynamic and rotordynamic instabilities of hydraulic turbomachinery, with special emphasis on cavitating turbopumps (cavitation surge, rotating cavitation, higher order cavitation surge, rotordynamic whirl forces). Finally, the third part of the book illustrates the alternative approaches for the simulation of cavitating flows, with emphasis on both modeling and numerical aspects. Examples of applications to the simulation of unsteady cavitation in internal flows through hydraulic machinery are illustrated in detail.
Cavitation
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Author : Yves Lecoffre
language : en
Publisher: CRC Press
Release Date : 1999-01-01
Cavitation written by Yves Lecoffre and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999-01-01 with Science categories.
This text deals with the concept that cavitation is the main limitation to the performance of hydraulic components. Topics covered include the vaporization of liquids due to high velocities or pressure fluctuations, and the effects of cavitation on the performances of rotary machinery. One chapter is devoted to cavitation noise which concerns many users, including surface ships and submarines, and the author finishes with some examples of the use of cavitation and subject-specific measuring techniques.