Author: Publisher: DIANE Publishing
ISBN: 1428995102
Category :
Languages : en
Pages : 51
Book Description
Doppler Global Velocimetry at NASA Glenn Research Center: System Discussion and Results
Author: Publisher: DIANE Publishing
ISBN: 1428995102
Category :
Languages : en
Pages : 51
Book Description
Doppler Global Velocimetry at NASA Glenn Research Center
Author: National Aeronautics and Space Administration (NASA)Publisher: Createspace Independent Publishing Platform
ISBN: 9781720480747
Category :
Languages : en
Pages : 52
Book Description
A ruggedized Doppler Global Velocimetry system has been built and tested at NASA Glenn Research Center. One component of planar velocity measurements of subsonic and supersonic flows from an under-expanded free jet are reported, which agree well with predicted values. An error analysis evaluates geometric and spectral error terms, and characterizes speckle noise in isotropic data. A multimode, fused fiber optic bundle is demonstrated to couple up to 650 mJ/pulse of laser light without burning or fiber ablation, and without evidence of Stimulated Brillouin Scattering or other spectral-broadening problems. Comparisons are made between spinning wheel data using illumination by freespace beam propagation and fiber optic beam delivery. The fiber bundle illumination is found to provide more spatially even and stable illumination than is typically available from pulsed Nd:YAG laser beams. The fiber bundle beam delivery is also a step toward making remote measurements and automatic real-time plume sectioning feasible in wind tunnel environments.Lant, Christian T.Glenn Research CenterVELOCITY MEASUREMENT; DOPPLER EFFECT; SUBSONIC FLOW; SUPERSONIC FLOW; FREE JETS; PULSED LASERS; COUPLING; FIBER OPTICS; BUNDLES; ERROR ANALYSIS; LIGHT BEAMS; ILLUMINATING
Research & Technology 2003
Author: Publisher: DIANE Publishing
ISBN: 1428918191
Category :
Languages : en
Pages : 264
Book Description
Encyclopedia of Optical Engineering: Pho-Z, pages 2049-3050
Author: Ronald G. DriggersPublisher: CRC Press
ISBN: 9780824742522
Category : Science
Languages : en
Pages : 1100
Book Description
Compiled by 330 of the most widely respected names in the electro-optical sciences, the Encyclopedia is destined to serve as the premiere guide in the field with nearly 2000 figures, 560 photographs, 260 tables, and 3800 equations. From astronomy to x-ray optics, this reference contains more than 230 vivid entries examining the most intriguing technological advances and perspectives from distinguished professionals around the globe. The contributors have selected topics of utmost importance in areas including digital image enhancement, biological modeling, biomedical spectroscopy, and ocean optics, providing thorough coverage of recent applications in this continually expanding field.
Monthly Catalogue, United States Public Documents
Author: Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1064
Book Description
Monthly Catalog of United States Government Publications
Author: Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1064
Book Description
AIAA Aerospace Sciences Meeting and Exhibit, 42nd
Author: Proceedings of the ASME Fluids Engineering Division
Author: The Power for Flight
Author: Jeremy R. KinneyPublisher: Government Printing Office
ISBN: 9781626830370
Category : Science
Languages : en
Pages : 318
Book Description
The NACA and aircraft propulsion, 1915-1958 -- NASA gets to work, 1958-1975 -- The shift toward commercial aviation, 1966-1975 -- The quest for propulsive efficiency, 1976-1989 -- Propulsion control enters the computer era, 1976-1998 -- Transiting to a new century, 1990-2008 -- Toward the future
Dissertation Abstracts International
Author: Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 902
Book Description