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Development And Applications Of Two And Threecomponent Particle Image Velocimetry Techniques Forsimultaneous Measurement In Multi Phase Flows Andautomative Fuel Sprays
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Book Synopsis Development and Applications of Two and Threecomponent Particle Image Velocimetry Techniques Forsimultaneous Measurement in Multi-phase Flows Andautomative Fuel Sprays by : Diego Alejandro Angarita Jaimes
Download or read book Development and Applications of Two and Threecomponent Particle Image Velocimetry Techniques Forsimultaneous Measurement in Multi-phase Flows Andautomative Fuel Sprays written by Diego Alejandro Angarita Jaimes and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The introduction of a new imaging approach for simultaneous multi-phase and multi-constituent velocity measurements is the main focus of this research. The proposed approach is based on the use of a single off-the-shelf colour camera which will enable simultaneous imaging of phases/constituents which are colourtagged using fluorescent droplets and multi-wavelength illumination. Highly efficient florescent tracers used to seed the constituents are presented and their visibility in full field imaging experiments is evaluated. A commonly found problem in experimental systems using laser illumination, known as flare, is discussed and the application of the developed fluorescent tracers for its reduction is presented. A strong focus of the imaging approach proposed is its flexibility and simplicity allowing its extension to stereoscopic imaging to obtain simultaneous multi-phase/constituent 3-component measurements with the addition of a second imaging camera. Proof of principle experiments with spatially separated and well mixed flows are presented for which successful phase discrimination is obtained and the uncertainty of the measurements is estimated. The imaging system developed is applied for simultaneous air and fuel velocimetry measurements in a Gasoline Direct Injection spray for which a more detailed understating of the interaction mechanisms is required to generate improved designs. The modified imaging system and experimental setup are presented and previously unavailable simultaneous air/fuel 2 and 3-component velocity fields are presented and analysed.
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1991 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Particle Image Velocimetry by : Markus Raffel
Download or read book Particle Image Velocimetry written by Markus Raffel and published by Springer. This book was released on 2013-12-19 with total page 267 pages. Available in PDF, EPUB and Kindle. Book excerpt: Results from several applications of particle image velocimetry (PIV) to unsteady flows at a laboratory scale have been published, and commercial products are now available for more general laboratory use, but for certain industrially important applications, reliable equipment is often available only from in-house research and development teams. This PIV handbookis intended to transfer know-how from PIV development laboratories to end-users in industry and universities. The book discusses the scientific and technical aspects required to set up a PIV system, allows users to assess the problems involved in the application of PIV, and enables them to design, optimize, and use PIV systems to meet their special needs.
Book Synopsis Small Animal Imaging by : Fabian Kiessling
Download or read book Small Animal Imaging written by Fabian Kiessling and published by Springer. This book was released on 2017-05-22 with total page 871 pages. Available in PDF, EPUB and Kindle. Book excerpt: This textbook is a practical guide to the use of small animal imaging in preclinical research that will assist in the choice of imaging modality and contrast agent and in study design, experimental setup, and data evaluation. All established imaging modalities are discussed in detail, with the assistance of numerous informative illustrations. While the focus of the new edition remains on practical basics, it has been updated to encompass a variety of emerging imaging modalities, methods, and applications. Additional useful hints are also supplied on the installation of a small animal unit, study planning, animal handling, and cost-effective performance of small animal imaging. Cross-calibration methods and data postprocessing are considered in depth. This new edition of Small Animal Imaging will be an invaluable aid for researchers, students, and technicians involved in research into and applications of small animal imaging.
Book Synopsis The Particle Image Velocimetry by : Giovanna Cavazzini
Download or read book The Particle Image Velocimetry written by Giovanna Cavazzini and published by BoD – Books on Demand. This book was released on 2012-05-23 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Particle Image Velocimetry is undoubtedly one of the most important technique in Fluid-dynamics since it allows to obtain a direct and instantaneous visualization of the flow field in a non-intrusive way. This innovative technique spreads in a wide number of research fields, from aerodynamics to medicine, from biology to turbulence researches, from aerodynamics to combustion processes. The book is aimed at presenting the PIV technique and its wide range of possible applications so as to provide a reference for researchers who intended to exploit this innovative technique in their research fields. Several aspects and possible problems in the analysis of large- and micro-scale turbulent phenomena, two-phase flows and polymer melts, combustion processes and turbo-machinery flow fields, internal waves and river/ocean flows were considered.
Book Synopsis Particle Image Velocimetry by : Markus Raffel
Download or read book Particle Image Velocimetry written by Markus Raffel and published by Springer Science & Business Media. This book was released on 2007-08-09 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt: This immensely practical guide to PIV provides a condensed, yet exhaustive guide to most of the information needed for experiments employing the technique. This second edition has updated chapters on the principles and extra information on microscopic, high-speed and three component measurements as well as a description of advanced evaluation techniques. What’s more, the huge increase in the range of possible applications has been taken into account as the chapter describing these applications of the PIV technique has been expanded.
Book Synopsis Particle Image Velocimetry by : Michel Stanislas
Download or read book Particle Image Velocimetry written by Michel Stanislas and published by Springer Science & Business Media. This book was released on 2013-03-14 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aeronautics industry is presently aiming for faster design cycles and shorter time to market of new aircraft. It is looking at the same time for improved aerodynamic performance, for evident competitive reasons. Advanced, computer based design systems, including fast and reliable numerical flow solvers, have been developed in the last decade including new turbulence models. On the experimental side, measurement techniques in general have also been improved significantly, however the data evaluation process remains still very time consuming, and unsteady effects and turbulence are often not being captured with sufficient accuracy and detail. The development of Particle Image Velocimetry (PIV) has helped to improve the analysis of the flow fields. After investigations in laboratory scale wind tunnels, a joint initiative on PIV research, by the European Aerospace Research Establishments, within GARTEUR have enabled a wide breakthrough of this new technology in Europe. Within the Research Framework Program of the European Union, the joint research project EUROPIV aimed to apply PIV technology to problems of industrial interest.
Download or read book NASA SP. written by and published by . This book was released on 1962 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Particle Image Velocimetry: Recent Improvements by : Michel Stanislas
Download or read book Particle Image Velocimetry: Recent Improvements written by Michel Stanislas and published by Springer Science & Business Media. This book was released on 2011-06-28 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Particle Image Velocimetry (PIV) measurement technique has undergone a strong development in the last 10 years. This book presents the proceedings of an international workshop held in Zaragoza, Spain on March 31st and April 1st, 2003 containing contributions from worldwide leading teams in the development of the PIV method. Most of these papers have been funded by the EC via the European EUROPIV 2 consortium to improve the performances of this measurement technique toward applications in the European Aeronautical industry, including results which are of strong interest for the worldwide community in Fluid Dynamics.
Download or read book FAA Aviation Forecasts written by and published by . This book was released on 1995 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Particle Image Velocimetry by : Ronald J. Adrian
Download or read book Particle Image Velocimetry written by Ronald J. Adrian and published by Cambridge University Press. This book was released on 2011 with total page 585 pages. Available in PDF, EPUB and Kindle. Book excerpt: Particle image velocimetry, or PIV, refers to a class of methods used in experimental fluid mechanics to determine instantaneous fields of the vector velocity by measuring the displacements of numerous fine particles that accurately follow the motion of the fluid. Although the concept of measuring particle displacements is simple in essence, the factors that need to be addressed to design and implement PIV systems that achieve reliable, accurate, and fast measurements and to interpret the results are surprisingly numerous. The aim of this book is to analyze and explain them comprehensively.
Book Synopsis Features, Challenges and Applications of Particle Image Velocimetry by : Sasha Kremke
Download or read book Features, Challenges and Applications of Particle Image Velocimetry written by Sasha Kremke and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The various features, challenges as well as applications of particle image velovimetry are highlighted ... Particle image velocimetry is a significant technique in fluid dynamics as it allows a direct and immediate visualization of the flow field in a non-intrusive manner. This technique is utilized in various research areas such as aerodynamics, medicine, biology, turbulence researches and combustion procedures. The objective of the book is to provide an introduction to the PIV technique and its vast range of possible applications so as to provide a reference for researchers who want to utilize this technique in their respective research areas. This book also discusses various facets and possible difficulties in the evaluation of large and micro-scale turbulent circumstances, combustion procedures and turbo-machinery flow fields, internal waves and river or ocean flows"--Page 4 of cover.
Book Synopsis Particle Image Velocimetry by : Andreas Schröder
Download or read book Particle Image Velocimetry written by Andreas Schröder and published by Springer Science & Business Media. This book was released on 2008-01-14 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book summarizes the main results reached using the EC-funded network PivNet 2. It also presents a survey of the state of the art of scientific research using PIV techniques. You get a clear introduction to the basics of these techniques. The authors then guide you through current and possible future applications for flow analysis, including combustion and supersonic flow. Hundreds of illustrations, many in full color, are provided.
Book Synopsis The Simplified Handbook of Vibration Analysis by : Arthur R. Crawford
Download or read book The Simplified Handbook of Vibration Analysis written by Arthur R. Crawford and published by . This book was released on 1992 with total page 175 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Particle Image Velocimetry by : ANDREAS SCHR÷DER
Download or read book Particle Image Velocimetry written by ANDREAS SCHR÷DER and published by Springer Verlag. This book was released on 2008-02-01 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: Particle Image Velocimetry (PIV) is a non-intrusive optical measurement technique which allows capturing several thousand velocity vectors within large flow fields instantaneously. Today, the PIV technique has spread widely and differentiated into many distinct applications, from micro flows over combustion to supersonic flows for both industrial needs and research. Over the past decade the measurement technique and the hard- and software have been improved continuously so that PIV has become a reliable and accurate method for "real life" investigations. Nevertheless there is still an ongoing process of improvements and extensions of the PIV technique towards 3D, time resolution, higher accuracy, measurements under harsh conditions and micro- and macroscales. This book gives a synopsis of the main results achieved during the EC-funded network PivNet 2 as well as a survey of the state-of-the-art of scientific research using PIV techniques in different fields of application.
Book Synopsis Three-Dimensional Velocity and Vorticity Measuring and Image Analysis Techniques by : Th. Dracos
Download or read book Three-Dimensional Velocity and Vorticity Measuring and Image Analysis Techniques written by Th. Dracos and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: The contents of this volume reflect to a large extent the efforts made by a group of Institutes at the ETH Zürich to develop new techniques for measurements of flows in fluids in the last decade. The motivation came from the study of tr~sport and mixing processes in natural and industrial systems. One of the characteristic properties of turbulence is its high mixing efficiency. The techniques developed are therefore suitable, although not exclusively, for turbulence measurements. They can be subdivided into point-measurements and field-measurements. The aim of the point-measurements developed is to determine the three components of the velocity and all their first derivatives with good temporal resolution and accuracy in turbulent flows. The old and weIl established method of hot-wire anemometry was used for this purpose. One of the main achievements in this context is the construction of miniature multi-wire probes. This technique was introduced to the Institute of Hydromechanics and Water Resources Management of ETH Zürich by Profs. A. Tsinober and E. Kit from Tel-Aviv University. This was made possible by the generous financial support by ETH, for which I would like to express my gratitude on this occasion. In addition, Dr. F.E. Joergensen from DANTEC contributed an example of recent developments in the hardware ofConstant Temperature Anemometry (CTA), for which I am very thankful.
Book Synopsis Particle Image Velocimetry Developments for Improved Near-wall Flow Measurements by : Chuong Vinh Nguyen
Download or read book Particle Image Velocimetry Developments for Improved Near-wall Flow Measurements written by Chuong Vinh Nguyen and published by . This book was released on 2010 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis is a compiled collection of works on the development of Particle Image Velocimetry (PIV) and micro PIV for near-wall flow measurements. PIV has been used to study many large scale industrial and biological flows, and micro PIV is increasingly utilised in micro-biological and micro-fluidic flow measurements. Both of the methods however suffer significant errors in the measurements of near wall flows due to the effects of the wall boundary and high velocity gradients. In addition, micro PIV suffers significant errors due to volume illumination and the resultant imaging of out-of-focus particles. Many important phenomena such as near-wall turbulence, near-wall transportation of particles or blood cells occur in near-wall regions, and significant improvement of PIV and micro PIV is required. This thesis is devoted to providing solutions to this demand by proposing three new PIV and micro PIV measurement techniques: image overlapping, volumetric-correlation PIV and interfacial PIV. Although these techniques can be applied to general applications, they have been optimised for biological applications. Image overlapping, when applied to micro PIV data, improves the measurement accuracy by effectively reducing the effect of out-of-focus particles. In micro PIV the imaging of out-of-focus particles by volume illumination causes significant measurement bias over the measurement depth. Image overlapping improves measurement accuracy significantly more than currently available techniques, while requiring fewer computational resources. In contrast to improving micro PIV accuracy by reducing the out-of-focus effect, volumetric-correlation PIV (VPIV) utilises this effect to provide 3-dimensional, 2-component (3D2C) velocity fields. VPIV is further extended to uniquely measure particle concentration. The concentration measurements improve the velocity measurement accuracy and provide additional information to study near-wall particle transport phenomena. VPIV simplifies 3D velocity measurements while requiring cheaper hardware. Challenging PIV and micro PIV measurements of flows near curved walls are further resolved by interfacial PIV. In this technique the fluid regions near curved walls are straightened by conformal transformation and a wall-normal velocity profile, with one-pixel resolution, is obtained utilising a novel line-correlation function and curve fitting.Interfacial PIV substantially simplifies the manual image rotation normally required in traditional PIV techniques, while increasing both the resolution of the near-wall velocity profiles and the accuracy of the wall-shear velocity gradient.
