Simultaneous High Resolution Optical Wavefront And Flow Diagnostics For High Speed Flows
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Author | : B. Thurow |
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Release | : 2003 |
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Download Simultaneous High-resolution Optical Wavefront and Flow Diagnostics for High-speed Flows Book in PDF, Epub and Kindle
Author | : M. Samimy |
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Release | : 1999 |
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Download Advanced Optical Diagnostics in High Speed Flows Book in PDF, Epub and Kindle
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Release | : 1973 |
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Download Report of the Commission to Study the Organization of Peace Book in PDF, Epub and Kindle
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Total Pages | : 0 |
Release | : 2000 |
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Download Development and Application of Advanced Optical Diagnostics for the Study of High Speed Flows in Micro Systems Book in PDF, Epub and Kindle
A program has been initiated to develop and demonstrate the applicability of time-of-flight and Doppler-based optical velocimetry techniques to supersonic micro scale flow fields. In particular, Molecular Tagging Velocimetry (MTV) measurements have been performed, using acetone vapor as a molecular tracer, in the flow produced by a 1 mm diameter, pressure matched, sonic nozzle. Measurements were performed over a static pressure range from approximately equal 1 torr to approximately equal 20 torr. Measurement accuracy is found to be on the order of 5 m/sec at a spatial resolution of order 10 microns. As a compliment to the experimental measurements, a computational program was also initiated which focused on the development of in house Navier - Stokes and Direct Simulation Monte Carlo (DSMC) codes.
Author | : Constandinos Miltiadis Mitsingas |
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Release | : 2018 |
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Download Reactive Flow Visualization Through High-speed Optical Laser Diagnostics Book in PDF, Epub and Kindle
Author | : L. Lading |
Publisher | : |
Total Pages | : 416 |
Release | : 1994-12-31 |
Genre | : Science |
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Download Optical Diagnostics for Flow Processes Book in PDF, Epub and Kindle
The origin of optical methods for fluid flow investigations appears to be nontraceable. This is no matter for surprise. After all seeing provides the most direct and common way for humans to learn about their environment. But at the same time some of the most sophisticated methods for doing measurements in fluids are also based on light and often laser light. A very large amount of material has been published in this area over the last two decades. Why then another publication? Well, the field is still in a state of rapid development. It is characterised by the use of results and methods developed within very different areas like optical physics, spectroscopy, communication systems, electronics and computer science, mechanical engineering, chemical engineering and, of course, fluid dynamics. We are not aware of a book containing both introductory and more advanced material that covers the same material as presented here. The book is the result of a compilation and expansion of material presented at a summer school on Optical Diagnosticsfor Flow Processes,held at RiS0 National Laboratory and the Technical University of Denmark in September 1993. The aim of the course was to provide a solid background for understanding, evaluating, and using modem optical diagnostic methods, addressing Ph. D. students and researchers active in areas of fluid flow research. The disciplines represented by the participants ranged from atmospheric fluid dynamics to biomedicine.
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Total Pages | : 428 |
Release | : 2001 |
Genre | : Flow visualization |
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Download Optical Diagnostics for Fluids, Solids, and Combustion Book in PDF, Epub and Kindle
Author | : Robert K. Tyson |
Publisher | : CRC Press |
Total Pages | : 356 |
Release | : 2022-02-28 |
Genre | : Technology & Engineering |
ISBN | : 1000531341 |
Download Principles of Adaptive Optics Book in PDF, Epub and Kindle
Principles of Adaptive Optics describes the foundations, principles, and applications of adaptive optics (AO) and its enabling technologies. This leading textbook addresses the fundamentals of AO at the core of astronomy, high-energy lasers, biomedical imaging, and optical communications. Key Features: Numerous examples to explain and support the underlying principles Hundreds of new references to support the topics that are addressed End-of-chapter questions and exercises A complete system design example threaded through each chapter as new material is introduced
Author | : Ryan Miyakawa |
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Total Pages | : 252 |
Release | : 2011 |
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Download Wavefront Metrology for High Resolution Optical Systems Book in PDF, Epub and Kindle
Next generation extreme ultraviolet (EUV) optical systems are moving to higher resolution optics to accommodate smaller length scales targeted by the semiconductor industry. As the numerical apertures (NA) of the optics become larger, it becomes increasingly difficult to characterize aberrations due to experimental challenges associated with high-resolution spatial filters and geometrical effects caused by large incident angles of the test wavefront. This dissertation focuses on two methods of wavefront metrology for high resolution optical systems. The first method, lateral shearing interferometry (LSI), is a self-referencing interferometry where the test wavefront is incident on a low spatial frequency grating, and the resulting interference between the diffracted orders is used to reconstruct the wavefront aberrations. LSI has many advantages over other interferometric tests such as phase-shifting point diffraction interferometry (PS/PDI) due to its experimental simplicity, stability, relaxed coherence requirements, and its ability to scale to high numerical apertures. While LSI has historically been a qualitative test, this dissertation presents a novel quantitative investigation of the LSI interferogram. The analysis reveals the existence of systematic aberrations due to the nonlinear angular response from the diffraction grating that compromises the accuracy of LSI at medium to high NAs. In the medium NA regime (0.15
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Total Pages | : 940 |
Release | : 1997 |
Genre | : Aeronautics |
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Download International Aerospace Abstracts Book in PDF, Epub and Kindle