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Books > Professional & Technical > Mechanical engineering & materials > Materials science > Mechanics of fluids > Hydraulics & pneumatics
Fluid movers are extensively used in the process industries. New
machines are specified, designed, manufactured and installed in a
way that ensures their safety and reliability. Existing machines
may be upgraded or retrofitted during maintenance or repair. This
book describes how improved components and better lubricant
application provisions, among other experience-based measures, can
safely extend operating life and increase profitability.
This book describes the fundamental phenomena of, and computational
methods for, hydraulic transients, such as the self-stabilization
effect, restriction of the Joukowsky equation, real relations
between the rigid and elastic water column theories, the role of
wave propagation speed, mechanism of the attenuation of pressure
fluctuations, etc. A new wave tracking method is described in great
detail and, supported by the established conservation and traveling
laws of shockwaves, offers a number of advantages. The book puts
forward a novel method that allows transient flows to be directly
computed at each time node during a transient process, and explains
the differences and relations between the rigid and elastic water
column theories. To facilitate their use in hydropower
applications, the characteristics of pumps and turbines are
provided in suitable forms and examples. The book offers a valuable
reference guide for engineers and scientists, helping them make
transient computations for their own programming, while also
contributing to the final standardization of methods for transient
computations.
The primary reference for the modeling of hydrodynamics and water
quality in rivers, lake, estuaries, coastal waters, and wetlands
This comprehensive text perfectly illustrates the principles, basic
processes, mathematical descriptions, case studies, and practical
applications associated with surface waters. It focuses on solving
practical problems in rivers, lakes, estuaries, coastal waters, and
wetlands. Most of the theories and technical approaches presented
within have been implemented in mathematical models and applied to
solve practical problems. Throughout the book, case studies are
presented to demonstrate how the basic theories and technical
approaches are implemented into models, and how these models are
applied to solve practical environmental/water resources problems.
This new edition of Hydrodynamics and Water Quality: Modeling
Rivers, Lakes, and Estuaries has been updated with more than 40%
new information. It features several new chapters, including one
devoted to shallow water processes in wetlands as well as another
focused on extreme value theory and environmental risk analysis. It
is also supplemented with a new website that provides files needed
for sample applications, such as source codes, executable codes,
input files, output files, model manuals, reports, technical notes,
and utility programs. This new edition of the book: * Includes more
than 120 new/updated figures and 450 references * Covers
state-of-the-art hydrodynamics, sediment transport, toxics fate and
transport, and water quality in surface waters * Provides essential
and updated information on mathematical models * Focuses on how to
solve practical problems in surface waters presenting basic
theories and technical approaches so that mathematical models can
be understood and applied to simulate processes in surface waters
Hailed as a great addition to any university library by the Journal
of the American Water Resources Association (July 2009),
Hydrodynamics and Water Quality, Second Edition is an essential
reference for practicing engineers, scientists, and water resource
managers worldwide.
This outstanding thesis characterises the aerodynamic flow around a
container freight train; investigating how changing container
loading configurations affect the magnitude of aerodynamic forces
measured on a container. 1/25th scale moving-model freight train
experiments were carried out at the University of Birmingham's
TRAIN rig facility to investigate slipstream velocities and static
pressure, as well as measuring, using a specifically designed
on-board pressure monitoring system, the aerodynamic loads on
containers. Results were compared with full scale data and assessed
in terms European standards for trackside worker and passenger
safety limits. Rail vehicle aerodynamic studies have tended to
previously focus on high speed passenger trains in line with
increases in train speed. The research presented within this thesis
highlights the issues associated with the aerodynamic development
around a freight train, providing the foundations for further
research and a basis from which to develop international safety
standards in relation to freight, as well as high speed trains.
This volume constitutes the results of the International Conference
on Underwater Environment, MOQESM'14, held at "Le Quartz"
Conference Center in Brest, France, on October 14-15, 2014, within
the framework of the 9th Sea Tech Week, International Marine
Science and Technology Event. The objective of MOQESM'14 was to
bring together researchers from both academia and industry,
interested in marine robotics and hydrography with application to
the coastal environment mapping and underwater infrastructures
surveys. The common thread of the conference is the combination of
technical control, perception, and localization, typically used in
robotics, with the methods of mapping and bathymetry. The papers
presented in this book focus on two main topics. Firstly, coastal
and infrastructure mapping is addressed, focusing not only on
hydrographic systems, but also on positioning systems, bathymetry,
and remote sensing. The proposed methods rely on acoustic sensors
such as side scan sonars, multibeam echo sounders, phase-measuring
bathymetric sonars, as well as optical systems such as underwater
laser scanners. Accurate underwater positioning is also addressed
in the case of the use of a single acoustic beacon, and the latest
advances in increasing the vertical precision of Global Navigation
Satellite System (GNSS) are also presented. Most of the above
mentioned works are closely related to autonomous marine vehicles.
Consequently, the second part of the book describes some works
concerning the methods associated with such type of vehicles. The
selected papers focus on autonomous surface or underwater vehicles,
detailing new approaches for localization, modeling, control,
mapping, obstacle detection and avoidance, surfacing, and software
development. Some of these works imply acoustics sensing as well as
image processing. Set membership methods are also used in some
papers. The applications of the work presented in this book concern
in particular oceanography, monitoring of oil and gas
infrastructures, and military field.
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