Characterization of Iodine Quenching and Energy Transfer Rate Constants for Supersonic Flow Visualization Applications PDF Download
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Author: Michael C. Heaven
Publisher:
ISBN:
Category :
Languages : en
Pages : 28
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Book Description
Planar laser induced fluorescence (PLIF) imaging is being used to study the fluid dynamics of supersonic gas mixing in the nozzle from a chemical oxygen iodine laser (COIL). PLIF images are recorded using laser excitation of the I(sub2) B-X transition. Data for the temperature dependences of the I(sub2)(B) quenching rate constants are needed for the quantitative interpretation of the PLIF data. A Mach 2.6 supersonic nozzle system has been used in an investigation of the quenching of I(sub2)(B) by N(sub2), O(sub2) and He over the temperature range from 120 to 295 K. Quenching by both N(sub2) and O(sub2) exhibited a near linear dependences on temperature for T>150 K. Quenching by He was found to be unimportant under typical COIL operating conditions. The quenching rate constants have been used in a preliminary analysis of PLIF images.
Author: Michael C. Heaven
Publisher:
ISBN:
Category :
Languages : en
Pages : 28
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Book Description
Planar laser induced fluorescence (PLIF) imaging is being used to study the fluid dynamics of supersonic gas mixing in the nozzle from a chemical oxygen iodine laser (COIL). PLIF images are recorded using laser excitation of the I(sub2) B-X transition. Data for the temperature dependences of the I(sub2)(B) quenching rate constants are needed for the quantitative interpretation of the PLIF data. A Mach 2.6 supersonic nozzle system has been used in an investigation of the quenching of I(sub2)(B) by N(sub2), O(sub2) and He over the temperature range from 120 to 295 K. Quenching by both N(sub2) and O(sub2) exhibited a near linear dependences on temperature for T>150 K. Quenching by He was found to be unimportant under typical COIL operating conditions. The quenching rate constants have been used in a preliminary analysis of PLIF images.
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1460
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Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Author: Cameron Tropea
Publisher: Springer Science & Business Media
ISBN: 3540251413
Category : Science
Languages : en
Pages : 1570
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Book Description
Accompanying DVD-ROM contains ... "all chapters of the Springer Handbook."--Page 3 of cover.
Author: Wolfgang Merzkirch
Publisher:
ISBN: 9789283504382
Category : Flow visualization
Languages : en
Pages : 93
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Book Description
The techniques of flow visualization and their application in wind tunnels, water channels, and experiments related to propulsion research are reviewed. These techniques can be classified roughly into three major groups: Surface flow visualization, scattering from flow tracers, and density sensitive flow visualization. The progress in laser optics and the wide-spread use of computers has led to the development of new techniques and evaluation procedures, which are included in the review; e.g. laser-induced fluorescence, speckle photography, image processing, and optical tomography. Emphasis is given to the discussion of the physical background of the methods. Information on technical details is provided by means of a number of sample photographs and by respective references.
Author: David M. Jameson
Publisher: Springer Science & Business Media
ISBN: 1468456199
Category : Science
Languages : en
Pages : 459
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Book Description
This volume is based on an international symposium held during September 9-12, 1986 in Bocca di Magra, Italy. The intent of the organizers was to bring together expert practitioners of fluorescence spectroscopy, particularly as applied to biological systems, to assess recent developments in the field and discuss future directions. At the same time the meeting was intended to honor the singular and outstanding scientific career of Gregorio Weber on the occasion of his seventieth birthday. Gregorio Weber is truly the pioneer in the application of fluores cence methods to biochemistry and biophysics. A complete list of his scientific contributions to fluorescence and to protein biochemistry is beyond the scope of this preface. Suffice it to say that since his initial landmark articles on fluorescence, published in the late 1940's and early 1950's, Gregorio Weber has continued to make seminal contribu tions to both the theory and practice of fluorescence and, contrary to many who might be tempted to rest on their laurels, he shows no signs of slackening his pace. In addition to his more obvious tangible contributions to the scientific field, Gregorio Weber has made equally valuable contributions of another type. Specifically, he has had the most profound impact, both profeSSionally and personally, on generations of young scientists.
Author: János Vad
Publisher: Springer Science & Business Media
ISBN: 3662087979
Category : Technology & Engineering
Languages : en
Pages : 424
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Book Description
Modelling Fluid Flow presents invited lectures, workshop summaries and a selection of papers from a recent international conference CMFF '03 on fluid technology. The lectures follow the current evolution and the newest challenges of the computational methods and measuring techniques related to fluid flow. The workshop summaries reflect the recent trends, open questions and unsolved problems in the mutually inspiring fields of experimental and computational fluid mechanics. The papers cover a wide range of fluids engineering, including reactive flow, chemical and process engineering, environmental fluid dynamics, turbulence modelling, numerical methods, and fluid machinery.
Author: Frank K. Lu
Publisher: AIAA
ISBN: 9781600864483
Category : Aerodynamics, Hypersonic
Languages : en
Pages : 694
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Book Description
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 514
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Book Description
Author: Leo Aloysius Wall
Publisher:
ISBN:
Category : Chemistry, Organic
Languages : en
Pages : 204
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Book Description
Author: Eric Kay
Publisher: Springer Science & Business Media
ISBN: 1461340039
Category : Science
Languages : en
Pages : 411
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Book Description
The papers in this volume were presented at an international symposium on Topics in Surface Chemistry which was held in Bad Neuenahr, West Germany., September 7-9, 1977. The symposium was sponsored by IBM Germany. It has been recognized for many years that our understanding of bulk phenomena and their subsequent exploitation depends largely on our ability to define correlations between microscopic structure and the physical and chemical phenomena of interest. The role played by surface phenomena in the overall behavior of a material has been a subject for speculation for a long time, but only during the last decade or so have experimental and theor etical tools been developed which make it possible to investigate surface structure and related surface phenomena uniquely. Numerous surface spectroscopies have been developed in recent years intended to describe the geometric, vibrational and electronic structure of a surface. Our present understanding of surface, thin film and interfacial phenomena in solid state physics owes much to these developments. In chemistry much of the interest in surface science has come from the obvious implications to such important and diverse fields as catalysis and corrosion. It takes little imagination to recognize that there are many other areas where advances in surface science can be brought to bear.
