This book is a collection of extended papers based on presentations given during the SIMHYDRO 2014 conference, held in Sophia Antipolis in June 2014. It focuses on the modeling and simulation of fast hydraulic transients, on 3D modeling, and on uncertainties and multiphase flows. The book explores both the limitations and performance of current models and presents the latest developments based on new numerical schemes, high-performance computing, multiphysics and multiscale methods, and better interaction with field or scale model data. It addresses the interests of practitioners, stakeholders, researchers and engineers active in this field.

During the life of a dam, changes in safety standards, legislation and land use will inevitably occur, and functional deterioration may also appear. To meet these challenges, these Proceedings from a panel of international experts assess, define and re-evaluate the design criteria for the construction of dams and the many attendant issues in on-going maintenance and management. Authors include international specialists: academics, professionals and those in local government, utilities and suppliers. Practitioners from these same fields will find the book a useful tool in acquiring a comprehensive knowledge of managing and retrofitting dams, so that they can continue to meet society's needs.

Flow-induced vibrations and noise continue to cause problems in a wide range of engineering applications ranging from civil engineering and marine structures to power generation and chemical processing. These proceedings bring together more than a hundred papers dealing with a variety of topics relating to flow-induced vibration and noise. The contents of this work constitute a mix of investigations by those working on the mechanisms of vibration and means of their alleviation, and studies by those in industry who draw on the present state of knowledge of these mechanisms to avoid or solve flow-induced vibration and noise problems in industrial applications.

This book provides a discussion of the latest research pertaining to the hydraulic design of spilways and to hydraulic engineering in general. It comprises the papers of a workshop organized to bring together engineers and scientists from around the world for the exchange of ideas on water flow over stepped spillways. This workshop covered a range of subjects from two-phase flow characteristics to refurbishment and implementation of spillways in existing dam structures, and the book also includes a number of illustrative case studies. Overall, this book is one of the first in the rapidly growing field of modern hydraulic engineering techniques. It will interest designers, scientists, and graduate students and researchers in the fields of hydraulic, civil and environmental engineering.

This text covers topics such as: hydrodynamic and water quality modeling; jets and plumes; turbulent sheer flows; air-water interaction; water quality models; environmental impact studies/Three Gorges project; water quality mangement; and eco hydraulics and river hydraulics.

Contents:
Part I: Brief Intermittent Psychotherapy Throughout the Life Cycle. The Developmental View. Psychojudo. Structuring the Episode. Part II: Onion and Garlic Dynamics. Onion/Analyzable. Garlic/Analyzable. Schizophrenia. Onion/Non?Analyzable. Garlic/Non?Analyzable. Suicidality.

Discussing the properties of tap water as the hydraulic pressure medium and the influence of water on component design, Water Hydraulics Control Technology describes the physical differences between water and mineral oil used in hydraulics... delineates, for the first time in book form, the complete range of water hydraulic products for power control systems... examines in depth newly developed, commercially available high-speed axial piston pumps and motors for industrial applications... analytically defines volumetric, mechanical, and total efficiencies of water hydraulic pumps and motors and provides experimental numerical data... furnishes measured-performance data for water hydraulic valves ... outlines procedures for the design of water hydraulic systems and looks at future developments ... and more. Written by an internationally recognized expert with over 40 years of industrial and academic experience, Water Hydraulics Control Technology is an incomparable resource for mechanical, design, control, chemical, fluid power, system, industrial, environmental, and manufacturing engineers; and upper-level undergraduate, graduate, and continuing-education students in these disciplines.

Contents:
Waterjetting fundamentals: Introduction. Terminology. What is a waterjet? Where did waterjets come from? How are waterjets used? Why are waterjets used? What is this book planning on doing?
Design of high pressure delivery circuits: Introduction. Example of energy efficiency; Energy input to the motor; Input power to the pump; Output power from the pump to the water; Output power supplied to the jet at the nozzle; Delivered power at the surface. Pump choices; Triplex and positive displacement pumps; Intensifier designs; Water cannons and ultra-high pressure systems. Power calculations. Pump selection criteria. Transmitting the energy. Nozzle considerations; Nozzle size; Nozzle performance; Nozzle design; Nozzle evaluation techniques; High pressure cutting nozzles; Waterjet cleaning nozzles; Droplet impact; The choice between round and fan-jet nozzles. Supply line and fittings; Component pressure losses; Procedure for evaluating friction loss; Flow straighteners. Delivering the energy. Using the energy. Notes and references.
The use of waterjets in cleaning applications: Introduction. Earlier and competing methods of cleaning; Airborne abrasive cleaning; air abrasive nozzle design and manufacture; Cleaning effectiveness; Angle of impact; Airborne abrasive machining; Abrasive use; Steam powered systems. Low pressure waterjet cleaning. Cleaning tubes, pipes and sewers; Cleaning small tubes; Moleing; Cleaning larger diameter tubes; Sewer cleaning. Parameter control for effective cleaning. Cleaning tanks and large surfaces; Hand-held equipment; Underwater cleaning. Advent of high preesure; Round and fan nozzles revisited; Cleaning radio-active pipes; Runway cleaning. Abrasive jet cleaning systems. Cleaning additives. Underwater applications. Lessons for use. Notes and references.
High pressure industrial waterjet cutting: Introduction. Background. Equipment for industrial applications; Activation valve and catcher; Inlet water treatment. Nozzle and part positioning-robotic use; Robots and their control; Accuracy and precision; Case studies of X-Y cutting. Multi-dimensional cutting; Considerations in the use of industrial waterjet cutting; Explosive material processing; Cut edge quality. Techniques for cutting harder materials; Non-traditional machining; Laser machining; Plasma torch; Electric discharge machining; Electrochemical machining; Ultrasonic machining; Abrasive flow machining; Comparisons of performance. Abrasive water cutting; Nozzle design; Abrasive jet case studies; Operational considerations; Glass cutting. Intermediate pressure abrasive jet cutting. Direct injection of abrasive; DIAjet case study; Underwater applications. Future technology; Waterjet machining; Waterjet assisted machine tool cutting. Notes and references.
Waterjets in civil engineering applications: Introduction. Earth moving applications; Soil removal in California during the gold rush; The extraction of clay and monitor design; Soviet experience in soil removal; Tunnelling in soft material; Reduced flow rate studies. The mechanism of soil removal; Frozen soil and the change in cutting mechanism; Cutting and removal of ice. Applications of waterjets in soil excavation; Excavation of the Bar-Lev line; Soil excavation and barrier walls; Grout walls and artificial pile construction; horizontal hole drilling; Joint and gap cleaning; Soil and turf penetration; Waterjet assisted earth plow. Concrete cutting and hydrodemolition; The initial study; Establishing the parameters; High pressure single pulse units; Continuous high pressure low flow systems; Continuous medium pressure flow systems; Case histories; Injection of abrasive for concrete cutting; Cutting concrete with cavitation; Notes and references.
The use of waterjets in mining: Introduction. Coal mining development; Soviet Developments; Trials in the United Kingdom; Developments in the United States; Higher pressure coal mining research; 450 MPa system for room and pillar coal mining; 330 MPa system for room and pillar coal mining; 70 MPa system for longwall coal mining; 70 MPa system for room and pillar coal mining. Japanese operations; Chinese hydraulic mining; Canadian hydraulic mining experience; German hydraulic mining experience; Polish experiments. Borehole mining. Notes and references.
Waterjet use in rock cutting: Rock disaggregation. Development of water cannons. Very high pressure continuous jets. Mechanisms of material removal; Jet impact on a rock; The effect of equipment parameters; The effect of rock properties. Applications of waterjets in cutting rock. Notes and references.
Waterjet drilling systems: Early drilling development. Waterjet drilling of rock bolt holes. Canadian waterjet drill bit design. Waterjet assisted percussive drilling. Waterjet drilling in coal and adjacent rock. Waterjets in oilwell drilling. Round the corner drilling. Borehole modification. Abrasive waterjet drilling. References.
Jet assisted mechanical cutting: Introduction and definitions. Mechanically assisted waterjet cutting. Waterjet assisted mechanical cutting equipment. Jet assisted cutting of coal. References.
Enhancing waterjet performance: Introduction. Enhancing the delivered jet power; The use of a sheath around a jet; Water chemistry changes; The introduction of long chain polymers. The accumulation of waterjet pressure; Pulsating waterjets; Self-resonating pulsating jets; Focussing multiple jets to generate higher pressures. The generation of cavitation with waterjets; The mechanisms of cavitation attack; ASTM cavitation test; Cavitation sheathing; The stationary specimen test; Cavitation in a flow channel; The Lichtarowicz cell; The travelling specimen test; Applications of cavitating jets; Shock loading. Spark generated jets. The introduction of abrasives into waterjets; The mechanisms of material removal; Ductile material removal; Brittle material removal; Considerations in mixing chamber design; Abrasive jet parameter effects; Choice of abrasives; DIAjet abrasive waterjet cutting; Modelling of abrasive jet cutting. Thermal pre-weakening with waterjets. Comment and references.
Theoretical considerations: Introduction. Jet energy considerations. Early theoretical approaches. Powell and Simpson's theory. Foreman and Secor's theory. Crow's theory. Rehbinder's theory. Energy input & crack growth considerations. References.
Safety, health and medical applications: Introduction. Damaging jet pressures; Possible damage mechanisms; Needle-less injection systems. Other safety considerations. The role of training. Medical applications. Comments and references.

A review of open channel turbulence, focusing especially on certain features stemming from the presence of the free surface and the bed of a river. Part one presents the statistical theory of turbulence; Part two addresses the coherent structures in open-channel flows and boundary layers.

This is a comprehensive work of reference for engineers dealing with the hydraulic problems that occur along coastlines and estuaries and in harbours. This branch of engineering has experienced rapid and profound changes since the 1960s due to the introduction of powerful computer modelling techniques. The book presents concise reviews of key topics on these techniques as well as the traditional civil engineering aspects of design and construction of coastal and maritime works. The powerful tools which are now available for computational and numerical modelling of hydraulic systems have to a considerable extent replaced physical models as the most appropriate means of investigating and selecting economic design options. This development has taken place alongside a greater understanding of the transport processes of granular and cohesive sediments, and an increasing concern with the environmental impact of engineering works. At the design stage, the engineer now commonly has to demonstrate the impact of the proposed works on the natural/watery environment. The chapters are presented under seven main headings: the physical environment; the scientific background; numerical tools and t

This monograph provides the practising engineer with a concise overview of the methods of water diversion and exclusion or removal of sediment from the diverted water. The emphasis is on flow features and the associated conveyance of sediments.

This book provides an introduction to the subject of turbulence modelling in a form easy to understand for anybody with a basic background in fluid mechanics, and it summarizes the present state of the art. Individual models are described and examined for the merits and demerits which range from the simple Prandtl mixing length theory to complex second order closure schemes.

This work provides comprehensive guidance on maintaining old waterfront walls, especially gravity walls constructed with stone masonry, brick blocks or mass concrete. It should be of use to engineers and owners responsible for such structure. Many existing waterfront structures (harbour and dock walls, breakwaters, seawalls, flood defences, skin walls, bridge piers and abutments) are crucial parts of industrial or environmental facilities. Many date back to the 19th century and earlier, and information on their design and construction is often incomplete. They are often massive structures, and the problems of working over or under water and on the buried back of the wall mean that they are difficult and expensive to investigate and maintain, yet they represent substantial capital assets and appropriate management and maintenance are essential. This work draws together a wealth of information and experience on the types of wall that were constructed up to the earlier part of this century. It includes numerous drawings and illustrations of these walls and reviews their performance. It goes on to identify and describe the most suitable techniques available for their inspection, struct

This volume in the Hydraulic Machinery Book Series covers the most important types of hydraulic machinery: hydraulic turbines for transforming water power to mechanical output; and pumps for producing fluid pressure for many purposes. It describes the features of mechanical design of various types of turbines and pumps. The structure of a hydraulic machine is decided primarily to satisfy the need of fluid flow, so hydraulic characteristics of the machines are also stressed. Manufacturing processes of turbines and pumps and their requirements are referred to in chapters on mechanical construction.

This wise, eloquent volume distils the essence of Dr. Jerry Lewis' rich 25-year background in the teaching of psychotherapeutic skills to residents and other professionals - skills that are central to the core identity of the psychiatrist.

Hydrostatic Transmissions and Actuators takes a pedagogical approach and begins with an overview of the subject, providing basic definitions and introducing fundamental concepts. Hydrostatic transmissions and hydrostatic actuators are then examined in more detail with coverage of pumps and motors, hydrostatic solutions to single-rod actuators, energy management and efficiency and dynamic response. Consideration is also given to current and emerging applications of hydrostatic transmissions and actuators in automobiles, mobile equipment, wind turbines, wave energy harvesting and airplanes. End of chapter exercises and real world industrial examples are included throughout and a companion website hosting a solution manual is also available. Hydrostatic Transmissions and Actuators is an up to date and comprehensive textbook suitable for courses on fluid power systems and technology, and mechatronics systems design.

This book covers the author's research achievements and the latest advances in high-speed pneumatic control theory and applied technologies. It presents the basic theory and highlights pioneering technologies resulting from research and development efforts in aerospace, aviation and other major equipment, including: pneumatic servo control theory, pneumatic nonlinear mechanisms, aerothermodynamics, pneumatic servo mechanisms, and high-speed pneumatic control theory.

Petroleum engineers continue to need cost saving and environmentally sustainable products and methods for today's hydraulic fracturing operations. Hydraulic Fracturing Chemicals and Fluid Technology, Second Edition, continues to deliver an easy-to-use manual of fluid formulations to meet specific job needs. Enhanced with more environmental aspects, this reference helps engineers and fluid specialists select and use the appropriate chemicals for any hydraulic fracturing job. New information concerning nanotechnology applications such as wellbore sealant and proppants are added to enhance operations in a sustainable manner while saving on production costs. Other updates include low recovery of fracturing water in shale, surfactants for waterless hydraulic fracturing, and expanded produced water treatment. Rounding out with updated references and patents for easy reference, Hydraulic Fracturing Chemicals and Fluid Technology, Second Edition, gives engineers a critical guide on selecting better products to boost productions while strengthening environmental enhancement and consideration.

Stilling basins utili z ing a hydraulic jump for energy dissipation are w i d e l y used in hydraulic engineering . D a Vinci was the first to describe the hydraulic jump, and Bidone conducted classical experiments about 170 years ago . Stilling basins w e r e developed in the thirties with signif- cant design improvements being made during the last sixty years . Although w e l l - a c c e p t e d guidelines for a successful design are presently available, the information for the design of such dissipators is not yet compiled in book form . This book provides state-of-the-art information on hydraulic jumps and associat ed stilling basins . A large numbe r of papers on the to pics are reviewed. T h e present trends of the art of designing a stilli ng basin are discussed and ideas for future research are outlined. Design criteria and recommendat ions are frequently given . However, this should not be considered as a r eady-to -use guideline since the design of an effective stilling basin is much more comple x than following general design steps . The book is divided into two parts. Part 1 on hydraulic jumps is c- prised of chapters 2 to 5. Part 2 consisting of chapters 6 to 14 deals with various hydraulic structures used to dissipate energy. The lists of notation and references are provided in each part separately although the same notation is u sed throughout.

One of the effects of global climate change is the increasing variability of extreme flood events and cyclones. Current measures to mitigate flood impacts, particularly in the urban environment, are based on previously-planned flood risk intervals and no longer provide sufficient protection. Being prepared for unexpected changes and extreme flood events asks for a paradigm shift in current strategies to avoid and manage flood disasters. In order to stem the increasing impact of urban floods, a major rethink of current planning and flood management policies and practice is required, taking into account different spatial and temporal scales. This book addresses a broad spectrum of relevant issues in the emerging field of urban flood management. It may act as a stimulus for further research and development in urban flood management while informing and engaging stakeholders in the promotion of integrated and cooperative approaches in water management. An interdisciplinary approach which will be of interest to all those who are active in water, risk and urban management.

The mathematical description of the properties of a shell is much more elaborate than those of beam and plate structures. Therefore many engineers and architects are unacquainted with aspects of shell behaviour and design, and are not familiar with sufficiently reliable shell theories for the different shell types as derived in the middle of the 20th century. Rather than contributing to theory development, this university textbook focuses on architectural and civil engineering schools. Of course, practising professionals will profit from it as well. The book deals with thin elastic shells, in particular with cylindrical, conical and spherical types, and with elliptic and hyperbolic paraboloids. The focus is on roofs, chimneys, pressure vessels and storage tanks. Special attention is paid to edge bending disturbance zones, which is indispensable knowledge in FE meshing. A substantial part of the book results from research efforts in the mid 20th century at Delft University of Technology. As such, it is a valuable addition to the body of shell research literature of continuing importance. This work can be used for university courses. It also shows professionals how to perform manual calculations of the main force flow in shell structures, and provides guidance for structural engineers estimating stresses and deformations.

This book presents practical hydraulic and river engineering research along with fluvial geomorphological concepts, and links the theoretical and practical knowledge of people working every day with rivers, streams, and hydraulic structures to fluvial geomorphology. Besides providing a guide for professionals, this book also provides material for students to acquire the knowledge and skills to rehabilitate rivers, streams, and waterways.