Effect of Blade Leading Edge Thickness on Cavitation Performance of 80.6 ̊helical Inducer in Hydrogen

Effect of Blade Leading Edge Thickness on Cavitation Performance of 80.6 ̊helical Inducer in Hydrogen PDF Author: Royce D. Moore
Publisher:
ISBN:
Category : Cavitation
Languages : en
Pages : 28

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Effect of Blade Leading Edge Thickness on Cavitation Performance of 80.6 ̊helical Inducer in Hydrogen

Effect of Blade Leading Edge Thickness on Cavitation Performance of 80.6 ̊helical Inducer in Hydrogen PDF Author: Royce D. Moore
Publisher:
ISBN:
Category : Cavitation
Languages : en
Pages : 28

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Book Description


Cavitation Instabilities and Rotordynamic Effects in Turbopumps and Hydroturbines

Cavitation Instabilities and Rotordynamic Effects in Turbopumps and Hydroturbines PDF Author: Luca d'Agostino
Publisher: Springer
ISBN: 3319497197
Category : Technology & Engineering
Languages : en
Pages : 288

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Book Description
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.

Liquid Rocket Engine Axial-flow Turbopumps

Liquid Rocket Engine Axial-flow Turbopumps PDF Author:
Publisher:
ISBN:
Category : Jet pumps
Languages : en
Pages : 132

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Book Description


Marine Propellers and Propulsion

Marine Propellers and Propulsion PDF Author: John Carlton
Publisher: Butterworth-Heinemann
ISBN: 0080971237
Category : Technology & Engineering
Languages : en
Pages : 539

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Book Description
The early development of the screw propeller. Propeller geometry. The propeller environment. The ship wake field, propeller performance characteristics.

Principles of Turbomachinery

Principles of Turbomachinery PDF Author: R. K. Turton
Publisher: Springer Science & Business Media
ISBN: 9401096899
Category : Science
Languages : en
Pages : 213

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Book Description
This text outlines the fluid and thermodynamic principles that apply to all classes of turbomachines, and the material has been presented in a unified way. The approach has been used with successive groups of final year mechanical engineering students, who have helped with the development of the ideas outlined. As with these students, the reader is assumed to have a basic understanding of fluid mechanics and thermodynamics. However, the early chapters combine the relevant material with some new concepts, and provide basic reading references. Two related objectives have defined the scope of the treatment. The first is to provide a general treatment of the common forms of turbo machine, covering basic fluid dynamics and thermodynamics of flow through passages and over surfaces, with a brief derivation of the fundamental governing equations. The second objective is to apply this material to the various machines in enough detail to allow the major design and performance factors to be appreciated. Both objectives have been met by grouping the machines by flow path rather than by application, thus allowing an appreciation of points of similarity or difference in approach. No attempt has been made to cover detailed points of design or stressing, though the cited references and the body of information from which they have been taken give this sort of information. The first four chapters introduce the fundamental relations, and the suc ceeding chapters deal with applications to the various flow paths.

Turbopumps for Liquid Rocket Engines

Turbopumps for Liquid Rocket Engines PDF Author: Maynard L. Joe Stangeland
Publisher:
ISBN: 9781560912668
Category : Technology & Engineering
Languages : en
Pages : 16

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Book Description


Hydrogen Cavitation Performance of 80.6° Helical Inducer with Blunt Leading Edges

Hydrogen Cavitation Performance of 80.6° Helical Inducer with Blunt Leading Edges PDF Author: Phillip R. Meng
Publisher:
ISBN:
Category :
Languages : en
Pages : 28

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Book Description


Handbook of Pumps and Pumping

Handbook of Pumps and Pumping PDF Author: Brian Nesbitt
Publisher: Elsevier
ISBN: 0080549217
Category : Technology & Engineering
Languages : en
Pages : 499

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Book Description
Written by an experienced engineer, this book contains practical information on all aspects of pumps including classifications, materials, seals, installation, commissioning and maintenance. In addition you will find essential information on units, manufacturers and suppliers worldwide, providing a unique reference for your desk, R&D lab, maintenance shop or library.* Includes maintenance techniques, helping you get the optimal performance out of your pump and reducing maintenance costs * Will help you to understand seals, couplings and ancillary equipment, ensuring systems are set up properly to save time and money * Provides useful contacts for manufacturers and suppliers who specialise in pumps, pumping and ancillary equipment

Hydrodynamics of Pumps

Hydrodynamics of Pumps PDF Author: Christopher E. Brennen
Publisher: Cambridge University Press
ISBN: 1139497278
Category : Technology & Engineering
Languages : en
Pages : 287

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Book Description
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.

Improvement of Crops in the Era of Climatic Changes

Improvement of Crops in the Era of Climatic Changes PDF Author: Parvaiz Ahmad
Publisher: Springer Science & Business Media
ISBN: 1461488303
Category : Science
Languages : en
Pages : 410

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Book Description
Current trends in population growth hint that global food production is unlikely to gratify future demands under predicted climate change scenarios unless the rates of crop improvement are accelerated. Crop production faces numerous challenges, due to changing environmental conditions and evolving needs for new plant-derived materials. These challenges come at a time when the plant sciences are witnessing remarkable progress in understanding fundamental processes of plant growth and development. Drought, heat, cold and salinity are among the major abiotic stresses that often cause a series of morphological, physiological, biochemical and molecular alterations which adversely affect plant growth, development and productivity, consequently posing a serious challenge for sustainable food production in large parts of the world, particularly in emerging countries. This emphasizes the urgency of finding better ways to translate new advances in plant science into concrete successes in agricultural production. To overcome the pessimistic influence of abiotic stresses and to maintain the food security in the face of these challenges, new, improved and tolerant crop varieties, contemporary breeding techniques, and cavernous understanding of the mechanisms that counteract detrimental climate changes are indubitably needed to sustain the requisite food supply. In this context, Improvement of Crops in the Era of Climatic Changes, Volume 1 provides a state-of-the-art guide to recent developments that aid in the understanding of plant responses to abiotic stresses and lead to new horizons vis-à-vis prime strategies for translating current research into applied solutions to create strong yields and overall crop improvement under such unfavourable environments. Written by a diverse group of internationally famed scholars, Improvement of Crops in the Era of Climatic Changes, Volume 1 is a brief yet all-inclusive resource that is immensely advantageous for researchers, students, environmentalists, soil scientists, professionals, and many others in the quest of advancement in this flourishing field of research.