Measurement of Size and Velocity Distributions of Particles in Spray by Holographic Techniques PDF Download
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Author: ADNAN SALEH AL. AITHAWI
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Author: ADNAN SALEH AL. AITHAWI
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Author: Robert L. Kurtz
Publisher:
ISBN:
Category : Holography
Languages : en
Pages : 28
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Book Description
Depending on the mechanism of particle production, the resultant particle size and velocity distribution may range over several orders of magnitude. In general, if particle size information is desired from a given type generator, one must resort to some form of experimental determination of the distribution. If the source of particle production is a dynamic one involving a reasonable volume, holography provides a tailor-made particle size and velocity distribution detector. This is evidenced by the fact that holography allows the entire volume to be recorded on one exposure without any interference with the volume of interest. Herein lies a very important characteristic of the holographic particle detection technique: It provides a holographic nondestructive testing technique in the fullest sense of the definition of nondestructive testing. This report provides a description of three different systems useful in this technique and includes the experimental results from one of the holographic systems which was used to detect particle size and velocity distribution from the Skylab waste tank.
Author: E. D. Hirleman
Publisher:
ISBN:
Category :
Languages : en
Pages : 153
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Book Description
This research was concerned with laser/optical techniques for size and velocity measurements of particles and droplets in spray combustion systems. The initial efforts were directed toward a novel method for simultaneous size and velocity measurements of individual particles. A prototype instrument was designed, constructed, calibrated, and successfully applied. Our efforts to verify the performance and accuracy of this diagnostic led to a parallel research effort on the laser diffraction droplet sizing technique. Significant contributions to the calibration and scattering inversion aspects of this technique were made. Contributions to the problem of aerosol characterizations are discussed. Among the papers included in this final report are: Integral Transform for Particle sizing by Near-forward Light Scattering; Non-intrusive Laser-based Particle Diagnostics; Particle Sizing by Optical; Nonimaging techniques; Response Characteristics of Laser Diffraction Size Analyzers--Optical sample volume extent and lens effects; Single Beam Laser Velocimetry in Turbulent Flows; Response Characteristics of the Multiple-ratio, Single-particle Counter; and Developments in Non-Doppler Laser Velocimetry.
Author: Julian M. Tishkoff
Publisher: ASTM International
ISBN: 9780803102279
Category : Technology & Engineering
Languages : en
Pages : 198
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Author: Robert L. Kurtz
Publisher:
ISBN:
Category : Holography
Languages : en
Pages : 16
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Author: Norman Chigier
Publisher: CRC Press
ISBN: 9781560320289
Category : Technology & Engineering
Languages : en
Pages : 556
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Book Description
The book begins with an introduction to the general problems of making measurements in high temperature and a presentation of chemically reacting flow systems. It describes each instrument with the various diagnostic techniques and discusses measurements that have been made in furnaces, flames, and rocket engines. The detailed measurement techniques described in this book cover a wide spectrum of applications in combustion systems, including gas turbine, rocket measurement techniques that were developed in laboratories. Information obtained on detailed temperature, velocity, particle size, and gas concentration distribution is leading to improve understanding of the chemical combustion process and to design imporvements in combustors.
Author: Arthur H. Lefebvre
Publisher: CRC Press
ISBN: 1498736262
Category : Technology & Engineering
Languages : en
Pages : 284
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Book Description
The second edition of this long-time bestseller provides a framework for designing and understanding sprays for a wide array of engineering applications. The text contains correlations and design tools that can be easily understood and used in relating the design of atomizers to the resulting spray behavior. Written to be accessible to readers with a modest technical background, the emphasis is on application rather than in-depth theory. Numerous examples are provided to serve as starting points for using the information in the book. Overall, this is a thoroughly updated edition that still retains the practical focus and readability of the original work by Arthur Lefebvre.
Author: P.M. Weaving
Publisher: Springer Science & Business Media
ISBN: 9400907494
Category : Technology & Engineering
Languages : en
Pages : 874
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Book Description
Sir Diarmuid Downs, CBE, FEng, FRS Engineering is about designing and making marketable artefacts. The element of design is what principally distinguishes engineering from science. The engineer is a creator. He brings together knowledge and experience from a variety of sources to serve his ends, producing goods of value to the individual and to the community. An important source of information on which the engineer draws is the work of the scientist or the scientifically minded engineer. The pure scientist is concerned with knowledge for its own sake and receives his greatest satisfaction if his experimental observations fit into an aesthetically satisfying theory. The applied scientist or engineer is also concerned with theory, but as a means to an end. He tries to devise a theory which will encompass the known experimental facts, both because an all embracing theory somehow serves as an extra validation of the facts and because the theory provides us with new leads to further fruitful experimental investigation. I have laboured these perhaps rather obvious points because they are well exemplified in this present book. The first internal combustion engines, produced just over one hundred years ago, were very simple, the design being based on very limited experimental information. The current engines are extremely complex and, while the basic design of cylinder, piston, connecting rod and crankshaft has changed but little, the overall performance in respect of specific power, fuel economy, pollution, noise and cost has been absolutely transformed.
Author: Alain Boutier
Publisher: John Wiley & Sons
ISBN: 1118576950
Category : Science
Languages : en
Pages : 263
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Book Description
In fluid mechanics, non-intrusive measurements are fundamental in order to improve knowledge of the behavior and main physical phenomena of flows in order to further validate codes. The principles and characteristics of the different techniques available in laser metrology are described in detail in this book. Velocity, temperature and concentration measurements by spectroscopic techniques based on light scattered by molecules are achieved by different techniques: laser-induced fluorescence, coherent anti-Stokes Raman scattering using lasers and parametric sources, and absorption spectroscopy by tunable laser diodes, which are generally better suited for high velocity flows. The size determination of particles by optical means, a technique mainly applied in two-phase flows, is the subject of another chapter, along with a description of the principles of light scattering. For each technique the basic principles are given, as well as optical devices and data processing. A final chapter reminds the reader of the main safety precautions to be taken when using powerful lasers.
Author: Robert James Adams
Publisher:
ISBN:
Category :
Languages : en
Pages :
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