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Utilizing gasoline as the fuel, air as oxidizer, a series of multi-cycle detonation experiments was conducted to study thrust augmentation by PDE-driven ejectors. The straight cylindrical ejectors with different inner diameter, length and inlet geometry were designed. The effects of the axial location of the ejectors relative to the end of the detonation tube, ejector length-to-diameter ratio on thrust augmentation were investigated, with the operating frequency of 25 Hz. A peak thrust augmentation level of 80.5% was achieved by adding an ejector to the exit of the detonation tube. Performance measurements of the PDE-ejector system showed that thrust augmentation is a strong function of the ejector axial position. The result indicated that there exists a maximum thrust augmentation with ejector upstream of the detonation tube exit at least. The exact location at which the maximum thrust augmentation was obtained varies with the ejector-to-PDE diameter ratio and the ejector inlet geometry. With the increase of the length-to-diameter ratio, thrust augmentation was noticeably enhanced and finally tended to a constant. There exists an optimum ejector length. In the present study, the optimum length-to-diameter ratio of ejector was 4.58. Furthermore, the effect of operating frequency on ejector thrust augmentation also investigated. The operating frequency was varied from 15 Hz to 35 Hz.
PAPER REVISED: 2015-05-20
PAPER ACCEPTED: 2015-05-27
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THERMAL SCIENCE YEAR 2015, VOLUME 19, ISSUE Issue 6, PAGES [2105 - 2114]
  1. T. Bussing, G. Pappas, An Introduction to Pulse Detonation Engines, AIAA paper 1994-0263, in 32nd Aerospace Sciences Meeting and Exhibit, Reno, NV, 1994.
  2. K. Kailasanath, Recent Developments in the Research on Pulse Detonation Engines, AIAA Journal 41 (2) (2003) 145-159.
  3. G. Roy, S. Frolov, A. Borisov, et al, Pulse Detonation Propulsion: Challenges, Current States, and Future Perspective, Progress in Energy and Combustion Science 30 (6) (2004) 545-672.
  4. K. Kailasanath, Research on Pulse Detonation Combustion Systems: a Status Report, AIAA paper 2009-631, in 47th AIAA Aerospace Sciences Meeting, Orlando, Florida, 2009.
  5. J. Kentfield, Fundamentals of Idealized Airbreathing Pulse-Detonation Engines, Journal of Propulsion and Power 18 (1) (2002) 77-83.
  6. J. Keenan, E. Neumann, F. Lustwerk, An Investigation of Ejector Design by Analysis and Experiment, Journal of Applied Mechanics, 17 (3) (1950) 299-309.
  7. B. Quinn, Ejector Performance at High Temperature and Pressures, Journal of Aircraft, 13 (12) (1976): 948-954.
  8. H. Viets, Thrust Augmenting Ejector Analogy, Journal of Aircraft, 14 (4) (1977): 409-411.
  9. R. Lockwood, Interim Summary Report on Investigation of the Process of Energy Transfer from an Intermittent Jet to Secondary Fluid in an Ejector-Type Thrust Augmenter, Hiller Aircraft Rept. No. ARD-286, March 1961.
  10. D. Paxson, J. Wilson, K. Dougherty, Unsteady Ejector Performance: An Experimental Investigation Using a Pulsejet Driver, AIAA Paper 2002-3915, in 38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, Indianapolis, Indiana, 2002.
  11. D. Paxson, M. Wemet, J. Wentworth, Experimental Investigation of Unsteady Thrust Augmentation Using a Speaker-Driven Jet, AIAA Journal, 45 (3) (2007) 607-614.
  12. V. Bogdanov, Interaction of Masses in the Operating Process of Pulse Jet Engines as a Means of Increasing Their Thrust Efficiency, Journal of Engineering Physics and Thermophysics 79 (3) (2006) 506-511.
  13. J. Wilson, M. Wemet, D. Paxson, Vortex Rings Generated by a Shrouded Hartmann-Sprenger Tube, AIAA Journal 44 (11) (2006) 2706-2718.
  14. J. Wilson, Effect of Pulse Length and Ejector Radius on Unsteady Ejector Performance, Journal of Propulsion and Power 23 (2) (2007) 345-352.
  15. D. Allgood, E. Gutmark, A. Rasheed, et al, Experimental Investigation of a Pulse Detonation Engine with a Two-Dimensional Ejector, AIAA Journal 43 (2) (2005) 1317-1323.
  16. J. Hoke, R. Bradley, J. Stutrud, et al, Integration of a Pulsed Detonation Engine with Ejector Pump and with a Turbo-Charger as Methods to Self-Aspirate, AIAA paper 2002-0615, in 40th Aerospace Sciences Meeting and Exhibit, Reno, NV, 2002.
  17. R. Shehadeh, S. Saretto, S. Lee, et al, Experimental Study of a Pulse Detonation Engine Driven Ejector, AIAA 2003-4972, in 39th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, Huntsville, Alabama, 2003.
  18. G. Canteins, F. Franzetti, E. Zoclonska, et al, Experimental and Numerical Investigations on PDE Performance Augmentation by means of an Ejector, Shock Wave, 15 (2) (2006) 103-112.
  19. J. Wilson, A. Sgondea, D. Paxson, et al, Parametric Investigation of Thrust Augmentation by Ejectors on a Pulsed Detonation tube, Journal of Propulsion and Power 23 (1) (2007) 108-115.
  20. D. Allgood, E. Gutmark, J. Hoke, et al, Performance Studies of Pulse Detonation Engine Ejectors, Journal of Propulsion and Power 24 (6) (2008) 1317-1323.
  21. A. Rasheed, V. Tangirala, P. Pinard, et al, Experimental and Numerical Investigations of Ejectors for PDE Applications, 39th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, Huntsville, Alabama, 2003, AIAA Paper 2003-4971.
  22. A. Glaser, N. Caldwell, E. Gutmark, et al, Study on the Operation of Pulse-Detonation Engine-Driven Ejectors, Journal of Propulsion and Power 24 (6) (2008) 1324-1331.
  23. R. Shehadeh, S. Saretto, S. Lee, et al, Thrust Augmentation Measurements for a Pulse Detonation Engine Driven Ejector, 40th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, Fort Lauderdale, Florida, 2004, AIAA 2004-3398.
  24. K. Landry, R. Shehadeh, N. Bouvet, et al, Effect of Operating Frequency on PDE Driven Ejector Thrust Performance, 41st AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, Tucson, Arizona, 2005, AIAA 2005-3832.
  25. Li Mu, Yan Chuan-jun, Numcrical Simulation and Val idation of Pulse Detonation Engine on Ejector Mode, Journal of Aerospace Power, 2005, 20(4): 645-650.

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence