Search Results: laser-doppler-and-phase-doppler-measurement-techniques-experimental-fluid-mechanics

Laser Doppler and Phase Doppler Measurement Techniques

Author: H.-E. Albrecht,Nils Damaschke,Michael Borys,Cameron Tropea

Publisher: Springer Science & Business Media

ISBN: 3662051656

Category: Technology & Engineering

Page: 738

View: 9616

Providing the first comprehensive treatment, this book covers all aspects of the laser Doppler and phase Doppler measurement techniques, including light scattering from small particles, fundamental optics, system design, signal and data processing, tracer particle generation, and applications in single and two-phase flows. The book is intended as both a reference book for more experienced users as well as an instructional book for students. It provides ample material as a basis for a lecture course on the subject and represents one of the most comprehensive treatments of the phase Doppler technique to date. The book will serve as a valuable reference book in any fluid mechanics laboratory where the laser Doppler or phase Doppler techniques are used. This work reflects the authors' long practical experience in the development of the techniques and equipment, as the many examples confirm.

Sensor-Technologien

Band 2: Geschwindigkeit, Durchfluss, Strömungsfeld

Author: Marcus Wolff

Publisher: Walter de Gruyter GmbH & Co KG

ISBN: 311047784X

Category: Technology & Engineering

Page: 362

View: 5974

Das Gebiet der Sensorik ist zurzeit einem auffalligen Wandel unterworfen. Viele neue Verfahren werden zur Marktreife gefuhrt und verdrangen bis dato etablierte altere Techniken. Neue Anforderungen, unter anderem durch die notwendige Automatisierungs- und Vernetzungstechnik im Zuge von Industrie 4.0, beschleunigen diese Veranderungen zusatzlich. Hier ist es schwierig den Uberblick zu behalten. Welche Wirkprinzipien werden aktuell fur die Messung eingesetzt? Fur welche Anwendungen sind diese geeignet? Wie sieht eine typische industrielle Umsetzung aus? Welche Spezifi kationen haben exemplarische kommerzielle Produkte? Das vorliegende Buch beantwortet die Fragen in verstandlicher Form. Es behandelt Sensor-Technologien fur die Groen Geschwindigkeit, Stromungsfeld und Durchfl uss. Die Sensoren werden dafur nach dem Wirkprinzip geordnet prasentiert. Neben den physikalischen Grundlagen und dem Funktionsprinzip werden auch noch Anwendungen und kommerzielle Produkte vorgestellt. Durch diese Strukturierung eignet sich das Buch gleichermaen als Lehrbuch fur Studierende (Bachelor und Master) und Ratgeber fur Praktiker. Das Spektrum reicht dabei von Lichtschrankensystemen fur die Weg-Zeit-Messung basierte Geschwindigkeitsmessung in der Verkehrstechnik bis zur Particle-Image-Velocimetrie fur die Aufnahme komplexer, dreidimensionaler Stromungsfelder. Prof. Dr.-Ing. Marcus Wolff ist Professor an der Hochschule fur Angewandte Wissenschaften Hamburg und leitet dort das Heinrich-Blasius-Institut fur Physikalische Technologien. Er lehrte Sensorik und Experimentalphysik.

Untersuchung thermoakustischer Instabilitäten von Sprayflammen

Author: Enrico Bärow

Publisher: Logos Verlag Berlin GmbH

ISBN: 3832547312

Category: Technology & Engineering

Page: 132

View: 2600

Gasturbinen und Flugtriebwerke müssen immer schärfere Emissionsgrenzwerte einhalten. Um dies zu erreichen, müssen unter anderem die Brennverfahren stetig verbessert werden. Das Lean-Direct-Injection-Konzept ist eines der aussichtsreichsten Brennverfahren, um Stickoxidemissionen zu minimieren. Im Gegenzug neigen derartige Brennkammern zu thermoakustischen Flammenschwingungen. In dieser Arbeit werden die Flammenschwingungen einer Lean-Direct-Injection-Brennkammer mit einer Sprayflamme untersucht. Es wird ein direkter Vergleich der beobachteten Flammenschwingung zwischen der Sprayflamme und diversen Gasflammen gezogen. Dies lässt eine unmittelbare Bewertung einzelner Teilmechanismen, wie der Mischung, der chemischen Eigenschaften des Brennstoffs, der Spraybildung, usw. zu. Um die Spraybildung unter oszillierenden Bedingungen besser zu verstehen, werden zudem detaillierte Untersuchungen an einem separaten Zerstäubungsprüfstand am gleichen Airblast-Zerstäuber durchgeführt. Diese Untersuchungen geben Aufschluss über das Antwortverhalten des Primärzerfalls sowie der Tropfenausbreitung innerhalb der Luftströmung.

Springer Handbook of Experimental Fluid Mechanics

Author: Cameron Tropea,Alexander L. Yarin

Publisher: Springer Science & Business Media

ISBN: 3540251413

Category: Science

Page: 1557

View: 2327

Accompanying DVD-ROM contains ... "all chapters of the Springer Handbook."--P. [3] of cover.

Dynamics of Droplets

Author: Arnold Frohn,Norbert Roth

Publisher: Springer Science & Business Media

ISBN: 9783540658870

Category: Science

Page: 292

View: 5053

The book deals with the dynamical behaviour of single droplets and regular droplet systems. After a short description of the theoretical background, the different experimental facilities and methods necessary for the investigation of single droplets are described in detail. A summary of important applications is included.

Laser Techniques for Fluid Mechanics

Selected Papers from the 10th International Symposium Lisbon, Portugal July 10–13, 2000

Author: R.J. Adrian,D.F.G. Durao,M.V. Heitor,M. Maeda,Cameron Tropea,J.H. Whitelaw

Publisher: Springer Science & Business Media

ISBN: 3662082632

Category: Technology & Engineering

Page: 566

View: 6777

This volume includes revised and extended versions of selected papers presented at the Tenth International Symposium on Applications of Laser Techniques to Fluid Mechanics held at the Calouste Gulbenkian Foundation in Lisbon, during the period of July 10 to 13, 2000. The papers describe instrumentation developments for Velocity, Scalar and Multi-Phase Flows and results of measurements of Turbulent Flows, and Combustion and Engines. The papers demonstrate the continuing and healthy interest in the development of understanding of new methodologies and implementation in terms of new instrumentation. The prime objective of the Tenth Symposium was to provide a forum for the presentation of the most advanced research on laser techniques for flow measurements, and communicate significant results to fluid mechanics. The application of laser techniques to scientific and engineering fluid flow research was emphasized, but contributions to the theory and practice of laser methods were also considered where they facilitate new improved fluid mechanic research. Attention was placed on laser-Doppler anemometry, particle sizing and other methods for the measurement of velocity and scalars, such as particle image velocimetry and laser induced fluorescence.

Applications of Laser Techniques to Fluid Mechanics

5th International Symposium Lisbon, Portugal, 9-12 July, 1990

Author: R.J. Adrian,D.F.G. Durao,F. Durst,M. Maeda,J. Whitelaw

Publisher: Springer Science & Business Media

ISBN: 3642612547

Category: Technology & Engineering

Page: 567

View: 4836

This volume consists of papers selected from the proceedings of the Fifth International Symposium on Applications of Laser Techniques to Fluid Mechanics, held at the Calouste Gulbenkian Foundation in Lisbon from 9 to 12 July, 1990. Relative to previous meetings in the Lisbon series the scope of this symposium was broadened by expanding the topical coverage to include all laser techniques used in fluid mechanics. This change recognized the trend amongst experimental fluid dynamicists to employ laser techniques for the mea surement of many different quantities, including concentration, temperature, particle size, and velocity, and the need for researchers to have a forum in which to communicate their work and share their common interests. The Fifth Symposium contained twenty-three sessions of formal presentations and a lively Open Forum ses sion. In addition, Dr. H. J. Pfeiffer organized a special Workshop on the Use of Computers in Flow Mea surements which contained five sessions on frequency domain processors, correIa tors, special detectors, and biasing.

Atmospheric and Oceanic Optics

Author: N.A

Publisher: N.A

ISBN: N.A

Category: Meteorological optics

Page: N.A

View: 3366

Imaging Measurement Methods for Flow Analysis

Results of the DFG Priority Programme 1147 “Imaging Measurement Methods for Flow Analysis” 2003-2009

Author: Wolfgang Nitsche,Christoph Dobriloff

Publisher: Springer Science & Business Media

ISBN: 3642011063

Category: Technology & Engineering

Page: 318

View: 5438

In 2003 the German Research Foundation established a new priority programme on the subject of “Imaging Measurement Methods for Flow Analysis” (SPP 1147). This research programme was based on the fact that experimental ?ow analysis, in addition to theory and numerics, has always played a predominant part both in ?ow research and in other areas of industrial practice. At the time, however, c- parisons with numerical tools (such as Computational Fluid Dynamics), which were increasingly used in research and practical applications, soon made it clear that there are relatively few experimental procedures which can keep up with state-of-the-art numerical methods in respect of their informative value, e.g. with regard to visu- spatial analysis or the dynamics of ?ow ?elds. The priority programme “Imaging Measurement Methods for Flow Analysis” was to help close this development gap. Hence the project was to focus on the investigation of ef?cient measurement me- ods to analyse complex spatial ?ow ?elds. Speci?c cooperations with computer sciences and especially measurement physics were to advance ?ow measurement techniques to a widely renowned key technology, exceeding the classical ?elds of ?uid mechanics by a long chalk.

LDA Application Methods

Laser Doppler Anemometry for Fluid Dynamics

Author: Zhengji Zhang

Publisher: Springer Science & Business Media

ISBN: 9783642135149

Category: Technology & Engineering

Page: 272

View: 6452

This technical book considers the application side of LDA techniques. Starting from the basic theories that are crucial for each LDA user, the main subject of the book is focused on diverse application methods. In details, it deals with universal methodical techniques that have been mostly developed in the last 15 years. The book thus gives for the first time an application reference for LDA users in improving the optical conditions and enhancing the measurement accuracies. It also provides the guidelines for simplifying the measurements and correcting measurement errors as well as for clarifying the application limits and extending the application areas of LDA techniques. Beside the treatments of some traditional optical and flow mechanical features influencing the measurement accuracies, the book shows a broad spectrum of LDA application methods in the manner of measuring the flow turbulence, resolving the secondary flow structures, and quantifying the optical aberrations at measurements of internal flows etc.. Thus, it also supports the further developments of both the hard- and software of LDA instrumentations.

Developments in Laser Techniques and Applications to Fluid Mechanics

Proceedings of the 7th International Symposium Lisbon, Portugal, 11–14 July, 1994

Author: R.J. Adrian,D.F.G. Durao,Franz Durst,M.V. Heitor,M. Maeda,J. Whitelaw

Publisher: Springer Science & Business Media

ISBN: 3642799655

Category: Technology & Engineering

Page: 478

View: 6892

This volume comprises a selection of the best papers presented at the Seventh Interna tional Symposium on Applications of Laser Techniques to Fluid Mechanics held at The Calouste Gulbenkian Foundation in Lisbon, during the period of July 11 to 14,1994. The papers describe Applications to Fluid Mechanics, Applications to Combustion, Instrumentation for Velocity and Size Measurements and Instrumentation for Whole Field Velocity and demonstrate the continuing and healthy interest in the development of understanding of the methodology and implementation in terms of new instru mentation. The prime objective of this Seventh Symposium was to provide a forum for the presen tation of the most advanced research on laser techniques for flow measurements, and communicate significant results to fluid mechanics. The applications oflaser techniques to scientific and engineering fluid flow research was emphasized, but contributions to the theory and practice of laser methods were also considered where they facilitate new improved fluid mechanic research. Attention was placed on laser-Doppler anemometry, particle sizing and other methods for the measurement of velocity and scalar, such as particle image velocimetry and laser induced fluorescence. We would like to take this opportunity to thank those who participated. The assistance provided by the Advisory Committee, by assessing abstracts was highly appreciated.

Compressibility, Turbulence and High Speed Flow

Author: Thomas B. Gatski,Jean-Paul Bonnet

Publisher: Elsevier

ISBN: 9780080559124

Category: Science

Page: 296

View: 5967

This book introduces the reader to the field of compressible turbulence and compressible turbulent flows across a broad speed range through a unique complimentary treatment of both the theoretical foundations and the measurement and analysis tools currently used. For the computation of turbulent compressible flows, current methods of averaging and filtering are presented so that the reader is exposed to a consistent development of applicable equation sets for both the mean or resolved fields as well as the transport equations for the turbulent stress field. For the measurement of turbulent compressible flows, current techniques ranging from hot-wire anemometry to PIV are evaluated and limitations assessed. Characterizing dynamic features of free shear flows, including jets, mixing layers and wakes, and wall-bounded flows, including shock-turbulence and shock boundary-layer interactions, obtained from computations, experiments and simulations are discussed. Describes prediction methodologies including the Reynolds-averaged Navier Stokes (RANS) method, scale filtered methods and direct numerical simulation (DNS) Presents current measurement and data analysis techniques Discusses the linkage between experimental and computational results necessary for validation of numerical predictions Meshes the varied results of computational and experimental studies in both free and wall-bounded flows to provide an overall current view of the field

Laser Techniques Applied to Fluid Mechanics

Selected Papers from the 9th International Symposium, Lisbon, Portugal, July 13-16, 1998

Author: Ronald J. Adrian

Publisher: Springer Science & Business Media

ISBN: 9783540667384

Category: Technology & Engineering

Page: 638

View: 8606

In the tradition of its predecessors, this volume comprises a selection of the best papers presented at the Ninth International Symposium on Applications of Laser Techniques to Fluid Mechanics, held in Lisbon in July 2000. The papers reflect the state-of-the-art in laser applications of laser techniques in fluid mechanics describing novel ideas for instrumentation, instrumentation developments, results of measurements of wall-bounded flows, free flows and flames and flow and combustion in engines. The papers demonstrate the continuing interest in the development of an understanding of new methodologies and implementation in terms of new instrumentation.

Theorie und Praxis der Laser-Doppler-Anemometrie

Author: Franz Durst,Adrian Melling,James H. Whitelaw

Publisher: Springer-Verlag

ISBN: 3642521320

Category: Technology & Engineering

Page: 582

View: 8092

Fluid Mechanics Measurements, Second Edition

Author: R. Goldstein

Publisher: CRC Press

ISBN: 9781560323068

Category: Technology & Engineering

Page: 600

View: 7190

This revised edition provides updated fluid mechanics measurement techniques as well as a comprehensive review of flow properties required for research, development, and application. Fluid-mechanics measurements in wind tunnel studies, aeroacoustics, and turbulent mixing layers, the theory of fluid mechanics, the application of the laws of fluid mechanics to measurement techniques, techniques of thermal anemometry, laser velocimetry, volume flow measurement techniques, and fluid mechanics measurement in non-Newtonian fluids, and various other techniques are discussed.

Developments in Laser Techniques and Fluid Mechanics

Selected Papers from the 8th International Symposium, Lisbon, Portugal, 8-11 July, 1996

Author: Ronald J. Adrian

Publisher: Springer Verlag

ISBN: 9783540635727

Category: Technology & Engineering

Page: 571

View: 1151

This volume comprises a selection of the best papers presented at the Eighth International Symposium on Applications of Laser Techniques to Fluid Mechanics, held in Lisbon in July 1996. The papers describe novel ideas for instrumentation, instrumentation developments, results of measurements of wall-bounded flows, free flows and flames and flow and combustion in engines. The papers demonstrate the continuing interest in the development of an understanding of new methodologies and implementation in terms of new instrumentation.

Bulletin of NRLM.

Author: N.A

Publisher: N.A

ISBN: N.A

Category: Mensuration

Page: N.A

View: 2037

Spray combustion measurements and model simulation

Author: Kenneth K. Kuo

Publisher: N.A

ISBN: 9781563471810

Category: Atomization

Page: 455

View: 2265

The second volume emphasizes spray combustion measurements and model simulation. It includes four areas: spray combustion measurements, modeling and numerical simulation, instability of liquid fueled combustion systems, and spray combustion in certain practical systems.

Fluid dynamics of sprays, 1991

presented at the Winter Annual Meeting of the American Society of Mechanical Engineers, Atlanta, Georgia, December 1-6, 1991

Author: J. W. Hoyt,T. J. O'Hern,American Society of Mechanical Engineers. Winter Meeting,American Society of Mechanical Engineers. Fluids Engineering Division

Publisher: N.A

ISBN: N.A

Category: Technology & Engineering

Page: 45

View: 1818

Laserspektroskopie 2

Experimentelle Techniken

Author: Wolfgang Demtröder

Publisher: Springer-Verlag

ISBN: 3642214479

Category: Science

Page: 575

View: 3391

In dem 2-bändigen Standardwerk erläutert der Autor die verschiedenen Techniken, die instrumentelle Ausrüstung sowie die Bedeutung der Laserspektroskopie für ein detailliertes Verständnis der Struktur und Dynamik von Atomen und Molekülen. Band 2 ist den experimentellen Techniken gewidmet. Die Neuauflage wurde völlig überarbeitet, viele Abschnitte zu aktuellen Themen wie Ultrakurzzeit-Spektroskopie, Attosekunden-Laser, Interferenzspektroskopie oder Laser-Interferometer als Detektoren für Gravitationswellen auf den neuesten Stand gebracht.

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