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TECHNICAL BRIEFS

Subsonic Elector Nozzle Limiting Flow Conditions

[+] Author and Article Information
L. J. De Chant

Analytic Entrainment LLC, 1541 Summit Hills Drive, Albuquerque, NM 87112 e-mail: dechants@earthlink.net.

J. Eng. Gas Turbines Power 125(3), 851-854 (Aug 15, 2003) (4 pages) doi:10.1115/1.1581890 History: Received June 01, 2000; Revised December 01, 2002; Online August 15, 2003
Copyright © 2003 by ASME
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References

Addy, A. L., Dutton, J. C., and Mikkelsen, C. D., 1981, “Supersonic Ejector-Diffuser Theory and Experiments,” Report UILU-ENG-82-4001, Department of Mechanical and Industrial Engineering, University of Illinois at Urbana-Champaign, Urbana, IL.
Dutton,  J. C., and Carroll,  B. F., 1986, “Optimal Supersonic Ejector Designs,” ASME J. Fluids Eng., 108, pp. 414–420.
Dutton,  J. C., and Carroll,  B. F., 1988, “Limitation of Ejector Performance due to Exit Choking,” ASME J. Fluids Eng., 110, pp. 91–93.
Emanual,  G., 1982, “Comparison of One-Dimensional Solutions With Fabri Theory for Ejectors,” Acta Mech., 44, pp. 187–200.
Huang,  B. J., and Chang,  J. M., 1999, “Empirical Correlation for Ejector Design,” Int. J. Refrig., 22, pp. 379–388.
De Chant, L. J., 1993, “Simplified Inverse Ejector Design Tool,” NASA Contractor Report, 194438.
De Chant, L. J., 1998, “Combined Numerical/Analytical Perturbation Solutions of the Navier-Stokes Equations for Aerodynamic Ejector/Mixer Nozzle Flows,” NASA Contractor Report 1998-207406.
De Chant,  L. J., and Andrews,  M. J., 2000, “A Combined Analytical Singularity Subtraction Method and Compact Implicit Differencing Scheme for Aerodynamic Mixing,” Math. Comput. Modell., 31, pp. 21–38.
De Chant,  L. J., and Seidel,  J. A., 2001, “Analytical Development of Non-Ideal Effects for Control Volume Based Mixer Models,” Appl. Therm. Eng., 21(15), pp. 1521–1533.

Figures

Grahic Jump Location
A diagram showing possible limiting subsonic flow fields
Grahic Jump Location
Comparison of a limiting flow solution with a nonconvergent due to incipient back flow for the DREA code-based simulation. Notice that the DREA code simulation value lies on the predicted (P02/P01)(A2/A1) curve obtained using the current analysis.
Grahic Jump Location
Use of the current method to produce an operational map for a subsonic ejector

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