Download or read book Interferometric Studies of the Flow in Fast expanding Nozzles written by Robert A. Leverance and published by . This book was released on 1973 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt: Interferometric studies have been performed in the test section of the Naval Ordnance Laboratory (NOL) 127 mm shock tunnel under conditions that closely simulate the flow in a gas dynamic laser (GDL) cavity. A Mach-Zehnder interferometer has been used to determine the density distribution in two nozzle configurations. In a two-dimensional fast-expanding nozzle, time-resolved interferograms were obtained at 200 microsecond intervals. For a multiple nozzle module interferograms were obtained in two mutually perpendicular directions. The experimental setup is described and the results are discussed. (Author).

Download or read book Interferometric Studies of the Flow in Fast expanding Nozzles written by Robert A. Leverance and published by . This book was released on 1973 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: Interferometric studies have been performed in the test section of the Naval Ordnance Laboratory (NOL) 127 mm shock tunnel under conditions that closely simulate the flow in a gas dynamic laser (GDL) cavity. A Mach-Zehnder interferometer has been used to determine the density distribution in two nozzle configurations. In a two-dimensional fast-expanding nozzle, time-resolved interferograms were obtained at 200 microsecond intervals. For a multiple nozzle module interferograms were obtained in two mutually perpendicular directions. The experimental setup is described and the results are discussed. (Author).

Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1976-04 with total page 912 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1992 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book AIAA 73 622 AIAA 73 658 written by and published by . This book was released on 1973 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Journal of Current Laser Abstracts written by and published by . This book was released on 1973 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Study of Flow Separation in Over expanded Supersonic Nozzles written by Robert Melvin Kuhns and published by . This book was released on 1955 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book AFOSR written by United States. Air Force. Office of Scientific Research and published by . This book was released on 1950 with total page 1190 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government Reports Announcements written by and published by . This book was released on 1973 with total page 1352 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Technical Abstract Bulletin written by and published by . This book was released on 1980 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Air Force Research Review written by United States. Air Force. Systems Command and published by . This book was released on 1970 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Research Review written by and published by . This book was released on 1970 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Use of a Characteristic Surfaces for Unisymmetrical Supersonic Flow Problems written by W. E. Moeckel and published by . This book was released on 1949 with total page 674 pages. Available in PDF, EPUB and Kindle. Book excerpt: Application of the method of characteristics to the linearized three-dimensional equation results in a relatively simple system of difference equations that can be used to compute the supersonic flow past boundaries for which no other linearized solutions are available.

Download or read book Investigation with an Interferometer of the Turbulent Mixing of a Free Supersonic Jet written by Paul B. Gooderum and published by . This book was released on 1949 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt: The free turbulent mixing of a supersonic jet was investigated with an interferometer, of which a description is given. Density and velocity distributions through the mixing zone were obtained. The velocity distribution was found to be similar to those for imcompressible jets over only the subsonic portion of the mixing pattern.

Download or read book Experimental Study of Flow Behaviour and Thermal Loads in Dual Bell Nozzles written by Chloé Génin and published by . This book was released on 2010 with total page 143 pages. Available in PDF, EPUB and Kindle. Book excerpt: The increasing needs of the aerospatial industry impose the optimisation of every subsystems of the launcher. Nozzles are currently the sub-system presenting the most promising possibilities. The dual bell nozzles allow the altitude adaptation of the flow through a simple contour inflection. The inflexion forces the flow to a stable and symmetrical separation, generating an optimised thrust for sea level operation. During the flight, when the ambient pressure decreases under a certain value, the flow suddenly attaches the nozzles wall down to the nozzles end, generating a higher expansion for higher performance. Before its possible application to a launcher main engine, this new nozzle concept must be fully understood. The study presented in this document was made at the DLR (German Aerospace Center) in Lampoldshaussen as part of a PhD. This fundamental study has for pbjective the understanding of the flow behaviour in a dual bell nozzle, in order to define the various parameters of influence. A cold flow test series has been conducted on various nozzle geometries. Pessure measurements have been made and the flow has been observed with schlieren optics in order to determine the influence of the geometry on the transition point, the transition duration and its stability toward pressure variations and the evolution of the flow from one operating mode to the other. Temperature and pressure measurements were also made during a test series under warm gas conditions to investigate the thermal load in the vicinity of the wall inflection.

Download or read book Holographic Interferometry for Flow Visualization Studies in High Speed Fans written by R. J. Parker and published by . This book was released on 1988 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Army Research and Development written by and published by . This book was released on 1976 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: