supersonic ejector diffuser theory and experiments

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DTIC ADP000536: Supersonic Ejector-Diffuser Theory and Experiments

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SIMILAR ITEMS (based on metadata)

• Corpus ID: 107297703

Supersonic Ejector-Diffuser Theory and Experiments

• A. Addy , J. Dutton , C. Mikkelsen
• Published 1 June 1982
• Engineering, Physics

46 Citations

Analysis of two-phase ejectors with fabri choking, numerical investigation on the flow structures of the multi-strut mixing enhancement ejector, annular supersonic ejector design and optimization, numerical and experimental evidence of the fabri-choking in a supersonic ejector, subsonic elector nozzle limiting flow conditions, investigation of radial flow ejector performance throughexperiments and computational simulations, numerical study of mixing enhancement in 2d supersonic ejector, design and performance of two-phase ejectors for space thermal management applications, experimental investigation on the performance of a multi-strut mixing-enhancement ejector, study the effect of changing inlet area ratio of a supersonic pressure-exchange ejector, related papers.

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Mixing in a Supersonic Ejector - An Experimental Investigation

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• M. V. Srisha Rao 3 &
• G. Jagadeesh 3  

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• International Symposium on Shock Waves

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A supersonic ejector utilizes the energy and momentum of a primary motive jet to entrain and compress a secondary co-flow. It is a pure aerodynamic device that has no moving parts and the flow is brought about by just gas dynamics of the two flows confined within a variable area duct.

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Numerical Investigation of the Flow Dynamics Inside Supersonic Fluid Ejector

Numerical investigation of the ejector influence on the effectiveness of a jet nozzle of a detonation engine

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Addy, A.L.: Supersonic Ejector-Diffuser Theory and Experiment (1981)

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Srisha Rao, M.V., Jagadeesh, G.: Experimental Investigations on Shock Oscillations and Mixing in a Supersonic Ejector. In: 1st International Conference on High Temperature Gas Dynamics, Beijing, October 15-17 (2012)

Srisha Rao, M.V., Jagadeesh, G.: Visualization and Image Processing of Compressible Flow in a Supersonic Gaseous Ejector. Journal of the Indian Institute of Science 93(1) (2013)

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Department of Aerospace Engineering, Indian Institute of Science, Bangalore, India, 560012

M. V. Srisha Rao & G. Jagadeesh

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Department of Engineering Physics, University of Wisconsin, Madison, USA

Riccardo Bonazza

Department of Mechanical Engineering, Georgia Institute of Technology, Atlanta, Georgia, USA

Devesh Ranjan

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© 2015 Springer International Publishing Switzerland

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Rao, M.V.S., Jagadeesh, G. (2015). Mixing in a Supersonic Ejector - An Experimental Investigation. In: Bonazza, R., Ranjan, D. (eds) 29th International Symposium on Shock Waves 2. ISSW 2013. Springer, Cham. https://doi.org/10.1007/978-3-319-16838-8_18

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DOI : https://doi.org/10.1007/978-3-319-16838-8_18

Publisher Name : Springer, Cham

Print ISBN : 978-3-319-16837-1

Online ISBN : 978-3-319-16838-8

eBook Packages : Physics and Astronomy Physics and Astronomy (R0)

Supersonic Ejector-Diffuser Theory and Experiments

AL Addy ， JC Dutton ， CC Mikkelsen

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Only some general conclusions will be drawn in this section since specific conclusions were included in the foregoing sections. The conclusions are: (1) The constant-area ejector flow model and computer program should be adopted as the basis for design and system studies. This model most realistically predicts the operational characteristics of ejector systems. The relationship and correspondence between variable-area and constant-area mixing tube ejectors should be established by both experiment and analysis. (2) The analysis of variable-area mixing-tube ejectors should be continued. (3) The design of potential high-performance ejectors must improve mixing and momentum transfer; some designs with potential are: unsteady flow, periodic pulsating flow, resonance phenomena, and/or various nozzle and mixing-tube geometries. (4) The computer models developed in this study should be augmented and incorporated into an overall system program and further improvement of sub-system models should be continued.

EJECTORS SHORT TAKEOFF AIRCRAFT THRUST AUGMENTATION THRUST AUGMENTOR NOZZLES VERTICAL TAKEOFF AIRCRAFT COMPUTER AIDED DESIGN MATHEMATICAL MODELS PERFORMANCE(ENGINEERING SUPERSONIC CHARACTERISTICS VARIABLE AREA NOZZLES

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Theory and Experiments on Supersonic Air-to-Air Ejectors

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A comparison of experiment with theory is made for air ejectors having cylindrical mixing sections and operating under conditions of supersonic primary flow and either mixed or supersonic regimes of mixing. The effect on ejector performance of such parameters as mixer length and cross section, terminating diffuser, primary Mach number, and primary nozzle position is presented in terms of mass flow and pressure ratio.

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30 p. : ill.

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Fabri, J. & Paulon, J. September 1958.

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• Main Title: Theory and Experiments on Supersonic Air-to-Air Ejectors
• Series Title: NACA Technical Memorandums
• Parallel Title: Théorie et expérimentation des éjecteurs supersoniques air-air
• aerodynamics
• air-to-air ejectors

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• Accession or Local Control No : 93R20201
• URL : http://hdl.handle.net/2060/19930090911 External Link
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Fabri, J. & Paulon, J. Theory and Experiments on Supersonic Air-to-Air Ejectors , report , September 1958; ( https://digital.library.unt.edu/ark:/67531/metadc65403/ : accessed September 3, 2024 ), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu ; crediting UNT Libraries Government Documents Department .

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Supersonic Ejector-Diffuser Theory and Experiments Paperback – January 1, 2010

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• ASIN ‏ : ‎ B007BIKZOU
• Publisher ‏ : ‎ Arch; Date is copyright Date; Reprint Edition (January 1, 2010)

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A theoretical and experimental investigation of the constant area, supersonic-supersonic ejector

Research output : Contribution to journal › Conference article › peer-review

An investigation of the constant area supersonic-supersonic ejector has been conducted wherein one supersonic stream is pumped directly by another inside a confining duct. The theoretical analysis is based on simplified, one-dimensional models of the constant area mixing section and inviscid interaction region. The parametric dependence of the ejector pressure recovery performance on each of seven dimensionless variables is presented. A series of small scale, axisymmetric ejector experiments indicates that the theory predicts maximum ejector compression ratios which are 15 to 22 percent higher than the measured values and that the ejector is susceptible to separation of the secondary stream at the confluence point of the primary and secondary streams.

ASJC Scopus subject areas

• General Engineering

Online availability

• 10.2514/6.1981-260

Library availability

Related links.

• Link to publication in Scopus
• Link to the citations in Scopus

Fingerprint

• Experimental Investigation Engineering 100%
• Theoretical Investigation Engineering 100%
• Ejector Engineering 100%
• Supersonic Ejector Keyphrases 100%
• Secondary Stream Engineering 33%
• One-dimensional Model Keyphrases 25%
• Compression Ratio Keyphrases 25%
• Pressure Recovery Keyphrases 25%

T1 - A theoretical and experimental investigation of the constant area, supersonic-supersonic ejector

AU - Dutton, J. C.

AU - Mikkelsen, C. D.

AU - Addy, A. L.

N2 - An investigation of the constant area supersonic-supersonic ejector has been conducted wherein one supersonic stream is pumped directly by another inside a confining duct. The theoretical analysis is based on simplified, one-dimensional models of the constant area mixing section and inviscid interaction region. The parametric dependence of the ejector pressure recovery performance on each of seven dimensionless variables is presented. A series of small scale, axisymmetric ejector experiments indicates that the theory predicts maximum ejector compression ratios which are 15 to 22 percent higher than the measured values and that the ejector is susceptible to separation of the secondary stream at the confluence point of the primary and secondary streams.

AB - An investigation of the constant area supersonic-supersonic ejector has been conducted wherein one supersonic stream is pumped directly by another inside a confining duct. The theoretical analysis is based on simplified, one-dimensional models of the constant area mixing section and inviscid interaction region. The parametric dependence of the ejector pressure recovery performance on each of seven dimensionless variables is presented. A series of small scale, axisymmetric ejector experiments indicates that the theory predicts maximum ejector compression ratios which are 15 to 22 percent higher than the measured values and that the ejector is susceptible to separation of the secondary stream at the confluence point of the primary and secondary streams.

UR - http://www.scopus.com/inward/record.url?scp=85069338355&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85069338355&partnerID=8YFLogxK

U2 - 10.2514/6.1981-260

DO - 10.2514/6.1981-260

M3 - Conference article

AN - SCOPUS:85069338355

SN - 0146-3705

JO - AIAA Paper

JF - AIAA Paper

T2 - AIAA Pap AIAA Aerosp Sci Meet, 19th

Y2 - 12 January 1981 through 15 January 1981