Pressure Measurement And Flowfield Characterization Of A Two Dimensional Ideally Expanded Constant Area Air Air Ejector
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Author | : Michael Benjamin |
Publisher | : |
Total Pages | : 220 |
Release | : 2019-05-31 |
Genre | : Technology & Engineering |
ISBN | : 9780530003658 |
Dissertation Discovery Company and University of Florida are dedicated to making scholarly works more discoverable and accessible throughout the world. This dissertation, "Pressure measurement and flowfield characterization of a two-dimensional ideally expanded constant area air/air ejector" by Michael Anthony Benjamin, was obtained from University of Florida and is being sold with permission from the author. A digital copy of this work may also be found in the university's institutional repository, IR@UF. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation.
Author | : Michael Anthony Benjamin |
Publisher | : |
Total Pages | : 390 |
Release | : 1994 |
Genre | : |
ISBN | : |
Author | : Maximino F. Dufflocq |
Publisher | : |
Total Pages | : 108 |
Release | : 1996 |
Genre | : |
ISBN | : |
Author | : L. Stewart Rolls |
Publisher | : |
Total Pages | : 42 |
Release | : 1954 |
Genre | : Aerodynamics |
ISBN | : |
Author | : |
Publisher | : |
Total Pages | : 860 |
Release | : 1996 |
Genre | : Dissertations, Academic |
ISBN | : |
Author | : George Einar Strand |
Publisher | : |
Total Pages | : 82 |
Release | : 1965 |
Genre | : |
ISBN | : |
An experimental investigation was performed to study the characteristics of the flow in a two-dimensional air ejector in which the center stream entered the mixing chamber at a Mach number of 1.90 while the velocity of the secondary flow was varied from zero to Mach 0.7. Mass flow ratios of the ejector were approximately equal when the pressures of the two streams were equal at the entrance to the mixing chamber. The chamber had a rectangular cross section and converged slightly; its length was equal to 16 times the width. Pressures measured at the walls and the centerline of the flow indicated that a maximum static pressure was reached at 8 widths of the chamber downstream of the nozzle when the flow was completely expanded at the nozzle exit. The maximum static pressure was achieved in less distance for the overexpanded condition and took longer for the underexpanded condition. The flow was always subsonic by the time the maximum pressure position was reached except in the underexpanded case, where the flow remained supersonic throughout the chamber and the maximum pressure was located at the exit to the chamber. (Author).
Author | : |
Publisher | : |
Total Pages | : 1572 |
Release | : 1992 |
Genre | : Aeronautics |
ISBN | : |
Author | : Gerald B. Gilbert |
Publisher | : |
Total Pages | : 140 |
Release | : 1973 |
Genre | : Ejector pumps |
ISBN | : |
Finite difference computer techniques have been used to calculate the detailed performance of air to air two-dimensional ejectors with symmetric variable area mixing sections and coaxial coverging primary nozzles. The analysis of the primary nozzle assumed correct expansion of the flow and is suitable for subsonic and slightly supersonic velocity levels. The variation of the mixing section channel walls is assumed to be gradual so that the static pressure can be assumed uniform on planes perpendicular to the axis. A test program was run to provide two-dimensional ejector test data for verification of the computer analysis. A primary converging nozzle with a discharge geometry of 0.125 inch x 8.0 inch was supplied with 600 SCFM of air at about 35 psia and 180 F. This nozzle was combined with two mixing section geometries with throat sizes of 1.25 inch x 8.0 inch and 1.875 inch x 8.0 inch and was tested at a total of 11 operating points.
Author | : Sheridan D. Johnston |
Publisher | : |
Total Pages | : 52 |
Release | : 1968 |
Genre | : Supersonic diffusers |
ISBN | : |
Author | : |
Publisher | : |
Total Pages | : 580 |
Release | : 1971 |
Genre | : Aeronautics |
ISBN | : |
A selection of annotated references to unclassified reports and journal articles that were introduced into the NASA scientific and technical information system and announced in Scientific and technical aerospace reports (STAR) and International aerospace abstracts (IAA)