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Friday, July 17, 2020 | History

2 edition of Experimental perfect-gas study of expansion-tube flow characteristics found in the catalog.

Experimental perfect-gas study of expansion-tube flow characteristics

Judy L. Shinn

Experimental perfect-gas study of expansion-tube flow characteristics

by Judy L. Shinn

  • 49 Want to read
  • 33 Currently reading

Published by National Aeronautics and Space Administration, Scientific and Technical Information Office, for sale by the National Technical Information Service in [Washington], Springfield, Va .
Written in English

    Subjects:
  • Gas dynamics.,
  • Gas flow.,
  • Shock tubes.

  • Edition Notes

    StatementJudy L. Shinn and Charles G. Miller III, Langley Research Center.
    SeriesNASA technical paper ; 1317, NASA technical paper -- 1317.
    ContributionsMiller, Charles G. 1940-, United States. National Aeronautics and Space Administration. Scientific and Technical Information Office., Langley Research Center.
    The Physical Object
    Pagination85 p. :
    Number of Pages85
    ID Numbers
    Open LibraryOL15229366M

      An experimental study of low Re cavity vortex formation embedded in a laminar boundary layer. NASA Astrophysics Data System (ADS) Gautam, Sashank; Lang, Amy; Wilroy, Jacob. Laminar boundary layer flow across a grooved surface leads to the formation of vortices inside rectangular cavities. The nature and stability of the vortex. Nozzle area ratio.

    This blowdown facility can accommodate a 5-minute test every 24 hours. The Twenty-Inch Supersonic Wind Tunnel at the Langley Research Center can generate flows with Mach numbers from to 5 for to 5 minutes. Another option, which is more common, is the vacuum supersonic wind tunnel shown schematically in Figure   Relaxation of an unsteady turbulent boundary layer on a flat plate in an expansion tube. NASA Technical Reports Server (NTRS) Gurta, R. N.; Trimpi, R. L. An analysis is presented for the relaxation of a turbulent boundary layer on a semi-infinite flat plate after passage of a shock wave and a trailing driver gas-driven gas interface. The problem has special application to expansion.

    The experimental work to follow will validate this study and examine the cavity flow field and its control. Experiments in Supersonic Gaseous Ejector Using 2D-PIV Technique Supersonic gaseous ejector is practically a supersonic confined jet, where the primary supersonic jet flows through the confined passage and thereby entrains the secondary. The University of Manchester hosted the 28th International Symposium on Shock Waves between 17 and 22 July The International Symposium on Shock Waves first took place in in Boston and has since become an internationally acclaimed series of meetings for the wider Shock Wave Community. The ISSW28 focused on the following areas: Blast Waves, Chemically Reacting Flows, Dense Gases and.


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Experimental perfect-gas study of expansion-tube flow characteristics by Judy L. Shinn Download PDF EPUB FB2

Experimental Perfect-Gas Study of Expansion-Tube Flow Characteristics Judy L. Shim and Charles G. Miller I11 Langley Research Center Hampton, Virgirzia NASA National Aeronautics and Space Administration Scientific and Technical Information Office Experimental perfect-gas study of expansion-tube flow characteristics.

Washington, D.C.: National Aeronautics and Space Administration, Scientific and Technical Information Office ; [Springfield, Va.: For sale by the National Technical Information Service, ] (OCoLC) Material Type. Filed under: Gas-lubricated bearings Film thickness measurement for spiral groove and Rayleigh step lift pads self-acting face seals / (Washington, D.C.: National Aeronautics and Space Administation, Scientific and Technical Information Branch ; [Springfield, Va.

The current work summarizes the efforts on the characterization of the unsteady gas ow process inside an expansion tube facility. The work is a combined numerical/experimental effort. [1] Trimpi, R. L., “ APreliminary Theoretical Study of The Expansion Tube, a New Device for Producing High-Enthalpy Short-Duration Hypersonic Gas Flows, ” N ASA TR-R, A PERFECT-GAS ANALYSIS OF THE EXPANSION TUNNEL, A MODIFICATION TO THE EXPANSION TUBE By Robert L.

Trimpi and Linwood B. Callis Langley Research Center SUMMARY A perfect-gas analysis is presented for an apparatus consisting of a basic expansion tube at the downstream end of which a nozzle has been e Size: 2MB.

Introduction. Experimental and numerical studies, of aerodynamics of simple-shape bodies have provided valuable information related to physics of hypersonic flows about spacecraft elements and testing devices.

Numerous results had been found in the cases of plates, wedges, cones, disks, spheres, torus, and cylinders (see by: 2. This book is the second edition of a successful, self-contained text for those students and readers interested in learning hypersonic flow and high-temperature gas dynamics.

Like the first edition, it assumes no prior familiarity with either subject on the part of the reader. The study shows that both the entropy and the vorticity behind the shock and across the inviscid part of the shock layer for the equilibrium air are higher than those of the perfect gas.

Fig. 15 demonstrates the computed surface pressure distrib- utions for both the equilibrium and perfect gas models in com- parison with the results of Vigneron Cited by: 4. Abstract. At the present time, ground based test facilities are unable to provide data for the full range of scramjet flight conditions.

However, an opportunity exists in which the hardware for the RHYFL shock tunnel could be utilized to create a large expansion tube, by: 4.

Fringe localization requirements for three-dimensional flow visualization of shock waves in diffuse-illumination, double pulse holographic interferometry / ([Washington, D.C.:] National Aeronautics and Space Administration, Scientific and Technical Information Office, ), by Arthur J.

Decker (page images at HathiTrust). Theory of Stagnation Point Heat Transfer in Dissociated Air. Effective high-order solver with thermally perfect gas model for hypersonic heating prediction.

Applied Thermal Engineering, Vol. Experimental Expansion Tube Study of the Flow over a Toroidal by: Takahashi, M., et al. (), Design and Experimental Study for Development of Pb-Bi Cooled Direct Contact Boiling Water Small Fast Reactor (PBWFR), Proc. of ICAPP04, Pittsburgh, PA, USA, Junepaper Full text of "Aeronautical Engineering: A Continuing Bibliography with Indexes" See other formats.

The streak interferogram, in addition to monitoring quality of free stream flow, can be used in conjunction with pressure, wave-velocity measurements and perfect gas theory to determine free stream conditions, notably static temperature, as necessary for the study of the flow around the model.

Full text of "NASA Technical Reports Server (NTRS) Aeronautical engineering: A continuing bibliography with indexes (supplement )" See other formats.

Description and operating performance of a parallel-rail electric-arc system with helium driver gas for the Langley 6-inch expansion tube [] Moore, John A.

Washington: National Aeronautics and Space Administration ; Springfield, Va.: for sale by the National Technical Information Service, You can write a book review and share your experiences. Other readers will always be interested in your opinion of the books you've read.

Whether you've loved the book or not, if you give your honest and detailed thoughts then people will find new books that are right for them. Full text of "Monthly catalog of United States Government publications" See other formats.

Leroy Spearman and Abel O. Torres, Experimental and Theoretical Study of Aerodynamic Characteristics of Some Lifting Bodies at Angles of Attack From Degrees to 53 Degrees at Mach Numbers From toNASA TM, Marchpp.

expansion tube, X2. Both a standard torus and a blocked torus model were used to explore the effects of choked flow. In general, it was found that shock interaction occurs further downstream for higher enthalpy and higher Mach number flows.

Good agreement between calculated and experimental heat rate was observed for the mod-erate and high. The University of Queensland (UQ) is currently developing high Mach number, high total pressure scramjet flow conditions in its X2 and X3 expansion tube facilities.

These conditions involve shock-processing a high-density air test gas followed by its unsteady expansion into a low-pressure acceleration tube. This relatively slow shock-processing requires the driver to supply high pressure .Full text of "NASA scientific and technical publications: A catalog of Special Publications, Reference Publications, Conference Publications, and Technical Papers, " See other formats.