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Author : Jun Liu
Publisher :
ISBN 13 :
Total Pages : 176 pages
Book Rating : 4.:/5 (268 download)
Download or read book A Method for Hot Wire Anemometer Calibration in Low Air Velocity written by Jun Liu and published by . This book was released on 1992 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Charles G. Lomas
Publisher : Cambridge University Press
ISBN 13 : 0521283183
Total Pages : 225 pages
Book Rating : 4.5/5 (212 download)
Download or read book Fundamentals of Hot Wire Anemometry written by Charles G. Lomas and published by Cambridge University Press. This book was released on 2011-06-09 with total page 225 pages. Available in PDF, EPUB and Kindle. Book excerpt: This 1985 book provides a summary of the theory and practice of the hot wire anemometer, an instrument used to measure the speed of fluid flow. Many techniques and uses of this instrument are discussed in detail. The author considers such topics as probe fouling, probe design, and circuit design, as well as the thermodynamics of heated wires and thin films. He also discusses measurements of turbulence, shear flows, vorticity, temperature, combined temperature and velocity, two-phase flows, and compressible flows for measurements in air, water, mercury, blood, glycerine, oil, luminous gases, and polymer solutions. The book concludes with a section on the pulsed wire anemometer and other wake-sensing anemometers. This book assumes a familiarity with basic fluid mechanics. However, mathematical descriptions occur near the end of each chapter thus allowing those with a limited mathematical background to make use of the practical details at the beginning of each chapter.
Author : Donald Raymond Stonemen
Publisher :
ISBN 13 :
Total Pages : 118 pages
Book Rating : 4.:/5 (427 download)
Download or read book The Calibration of a Hot Wire Anemometer for Use in Low Velocities of Air written by Donald Raymond Stonemen and published by . This book was released on 1948 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : R. P. Dring
Publisher :
ISBN 13 :
Total Pages : 4 pages
Book Rating : 4.:/5 (696 download)
Download or read book ASME 69-HT-A written by R. P. Dring and published by . This book was released on 1969 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Constantin Schosser
Publisher : diplom.de
ISBN 13 : 3836639602
Total Pages : 109 pages
Book Rating : 4.8/5 (366 download)
Download or read book Development of an automated calibration system for hotwire anemometers written by Constantin Schosser and published by diplom.de. This book was released on 2010-01-22 with total page 109 pages. Available in PDF, EPUB and Kindle. Book excerpt: Inhaltsangabe:Introduction: In experimental fluid dynamic measurements hot-wire anemometry is used to record information about flow fields. Furthermore one can obtain the magnitude, the direction and even the time dependant behaviour of the fluid flow, if multiple-wire probes are in operation. The hot-wire measurement technique is based on the convective heat transfer from a heated element to the fluid flow, which is actually proportional to the velocity of the flow. So HWA is an indirect measurement technique. There are miscellaneous sensors which work properly in water or other liquids, air or in gas flows. As an example, Fig. 1.1 shows a cross-wire probe in a fluid flow, which can detect the velocity and its direction in two components, if the main flow direction is in one plane (2D flow). Predominantly HWA is a research tool for turbulent flow studies, especially transient procedures. Turbulence models have to be built to represent the characteristics of the flow in numerical simulations (CFD). Therefore only detailed experimental measurements lead to reliable information about the local velocity of a turbulent flow. This can be provided by HWA on the basis of its very high spatial and temporal resolution. Although the development of HWA started at the beginning of the 19th century and new techniques like PIV or LDA (direct methods) have been established, it is still a common device in all wind tunnel labs. The analogue output signal can be optimized by filters before signal processing. It can also be deployed to arrange a spectrum analysis, due to the high temporal resolution. Moreover, unlike the digital devices the analogue signal is densely packed. The range of application is large and leads from sub- and supersonic flows, the independency of the medium to high-temperature measurements. HWA is also affordable in contrast to LDA and PIV systems. In spite of these advantages the natural contamination of the hot-wire probe increases by and by, since the particles in the fluid flow mature themselves to the probe and finally isolate it. As this effect of disturbance causes measuring errors, the hot-wire probes have to be calibrated at frequent intervals - best before and after every data acquisition series. However, HWA is an intrusive measurement technique, thus disturbing the flow. Another disadvantage is that it is not applicable in separation and backward flow regions. The aim of this thesis is to develop an automated calibration system to [...]
Author : Anthony Edward Perry
Publisher : Oxford University Press, USA
ISBN 13 :
Total Pages : 216 pages
Book Rating : 4.3/5 (91 download)
Download or read book Hot-wire Anemometry written by Anthony Edward Perry and published by Oxford University Press, USA. This book was released on 1982 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : H. H. Bruun
Publisher :
ISBN 13 : 9781383029086
Total Pages : 0 pages
Book Rating : 4.0/5 (29 download)
Download or read book Hot-wire Anemometry written by H. H. Bruun and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive and practical book that examines this very important technique used in fluid flow measurements. As well as the physical experimental set-ups and techniques the book deals with the analysis of the signals gathered from HWA probes.
Author : L. P. Purtell
Publisher :
ISBN 13 :
Total Pages : 28 pages
Book Rating : 4.3/5 (91 download)
Download or read book A Low-velocity Airflow Calibration and Research Facility written by L. P. Purtell and published by . This book was released on 1979 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Carl George Frederick Zobel
Publisher :
ISBN 13 :
Total Pages : 12 pages
Book Rating : 4.3/5 (91 download)
Download or read book A Hot-wire Anemometer for Measuring Air Flow Through Engine Radiators written by Carl George Frederick Zobel and published by . This book was released on 1925 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : P Bradshaw
Publisher : Elsevier
ISBN 13 : 1483140849
Total Pages : 239 pages
Book Rating : 4.4/5 (831 download)
Download or read book An Introduction to Turbulence and its Measurement written by P Bradshaw and published by Elsevier. This book was released on 2013-10-22 with total page 239 pages. Available in PDF, EPUB and Kindle. Book excerpt: An Introduction to Turbulence and Its Measurement is an introductory text on turbulence and its measurement. It combines the physics of turbulence with measurement techniques and covers topics ranging from measurable quantities and their physical significance to the analysis of fluctuating signals, temperature and concentration measurements, and the hot-wire anemometer. Examples of turbulent flows are presented. This book is comprised of eight chapters and begins with an overview of the physics of turbulence, paying particular attention to Newton's second law of motion, the Newtonian viscous fluid, and equations of motion. After a chapter devoted to measurable quantities, the discussion turns to some examples of turbulent flows, including turbulence behind a grid of bars, Couette flow, atmospheric and oceanic turbulence, and heat and mass transfer. The next chapter describes measurement techniques using hot wires, films, and thermistors, as well as Doppler-shift anemometers; glow-discharge or corona-discharge anemometers; pulsed-wire anemometer; and steady-flow techniques for fluctuation measurement. This monograph is intended for post-graduate students of aeronautics and fluid mechanics, but should also be readily understandable to those with a good general background in engineering fluid dynamics.
Author : Howard C. Judson (Jr.)
Publisher :
ISBN 13 :
Total Pages : 36 pages
Book Rating : 4.:/5 (115 download)
Download or read book Calibration of the Hot Wire Anemometer at Low Speeds by Photographic Methods written by Howard C. Judson (Jr.) and published by . This book was released on 1949 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Noor A Ahmed
Publisher : CRC Press
ISBN 13 : 0429805446
Total Pages : 320 pages
Book Rating : 4.4/5 (298 download)
Download or read book Coanda Effect written by Noor A Ahmed and published by CRC Press. This book was released on 2019-08-28 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coanda effect is a complex fluid flow phenomenon enabling the production of vertical take-off/landing aircraft. Other applications range from helicopters to road vehicles, from flow mixing to combustion, from noise reduction to pollution control, from power generation to robot operation, and so forth. Book starts with description of the effect, its history and general formulation of governing equations/simplifications used in different applications. Further, it gives an account of this effect’s lift boosting potential on a wing and in non-flying vehicles including industrial applications. Finally, occurrence of the same in human body and associated adverse medical conditions are explained.
Author : Ernest Ower
Publisher :
ISBN 13 :
Total Pages : 384 pages
Book Rating : 4.3/5 (91 download)
Download or read book The Measurement of Air Flow written by Ernest Ower and published by . This book was released on 1966 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781722280338
Total Pages : 44 pages
Book Rating : 4.2/5 (83 download)
Download or read book Hot Wire Anemometer Measurements in the Unheated Air Flow Tests of the Srb Nozzle-To-Case Joint written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-05 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hot-Wire Anemometer measurements made in the Solid Rocket Booster (SRB) nozzle-to-case joint are discussed. The study was undertaken to glean additional information on the circumferential flow induced in the SRB nozzle joint and the effect of this flow on the insulation bonding flaws. The tests were conducted on a full-scale, 2-D representation of a 65-in long segment of the SRB nozzle joint, with unheated air as the working fluid. Both the flight Mach number and Reynolds number were matched simultaneously and different pressure gradients imposed along the joint face were investigated. Hot-wire anemometers were used to obtain velocity data for different joint gaps and debond configurations. The procedure adopted for hot-wire calibration and use is outlined and the results from the tests summarized. Ramachandran, N. Unspecified Center NAS8-36474...
Author : Cameron Tropea
Publisher : Springer Science & Business Media
ISBN 13 : 3540251413
Total Pages : 1570 pages
Book Rating : 4.5/5 (42 download)
Download or read book Springer Handbook of Experimental Fluid Mechanics written by Cameron Tropea and published by Springer Science & Business Media. This book was released on 2007-10-09 with total page 1570 pages. Available in PDF, EPUB and Kindle. Book excerpt: Accompanying DVD-ROM contains ... "all chapters of the Springer Handbook."--Page 3 of cover.
Author : Great Britain. Advisory Committee for Aeronautics
Publisher :
ISBN 13 :
Total Pages : 646 pages
Book Rating : 4.3/5 (91 download)
Download or read book Technical Report written by Great Britain. Advisory Committee for Aeronautics and published by . This book was released on 1922 with total page 646 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : F. Dobson
Publisher : Springer Science & Business Media
ISBN 13 : 1461591821
Total Pages : 797 pages
Book Rating : 4.4/5 (615 download)
Download or read book Air-Sea Interaction written by F. Dobson and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 797 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the past decade, man's centuries-old interest in marine me teorology and oceanography has broadened. Ocean and atmosphere are now treated as coupled parts of one system; the resulting interest in air-sea interaction problems has led to a rapid growth in the sophistication of instruments and measurement techniques. This book has been designed as a reference text which describes, albng with the instruments themselves, the accumulated practical experi ence of experts engaged in field observations of air-sea interac tions. It is meant to supplement rather than replace manuals on standard routine observations or instnunentation handbooks. At the inception a textbook was planned, which would contain only well tested methods and instruments. It was quickly discovered that for the book to be useful many devices and techniques would have to be included which are still evolving rapidly. The reader is therefore cautioned to take nothing in these pages for granted. Certainly, every contributor is an expert, but while some are back ed up by generations of published work, others are pioneers. The choice of topics, of course, is debatable. The types of observa tions included are not exhaustive and topics such as marine aero sols and radio-tracers are omitted, as was the general subject of remote sensing, which was felt to be too broad and evol ving too rapidly. The guideline adopted in limiting size was maximum use fulness to 'a trained experimentalist new to the field'.
