Hostname: page-component-848d4c4894-x5gtn Total loading time: 0 Render date: 2024-05-07T11:59:17.165Z Has data issue: false hasContentIssue false

Experimental investigation of a Y-shaped engine inlet at subsonic flow conditions

Published online by Cambridge University Press:  24 April 2024

U.C. Küçük*
Affiliation:
Propulsion Aerodynamics, Turkish Aerospace, Ankara, Turkey

Abstract

In this paper, the results of an experimental investigation for a Y-shaped engine inlet are presented. The experiment is performed at subsonic flow conditions. The main focus is given to time-dependent total pressures measured at the aerodynamic interface plane. Distinctive frequencies carrying high energy contents of the fluctuating total pressures are given and the relation between time-dependent and time-average performance parameters is presented. The cross-correlation coefficients of the high frequency probe readings distributed through the aerodynamic interface plane are also investigated.

Type
Research Article
Copyright
© The Author(s), 2024. Published by Cambridge University Press on behalf of Royal Aeronautical Society

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Sóbester, A. Tradeoffs in jet inlet design: a historical perspective. J. Aircraft, 2007, 44, (3), pp 705717.CrossRefGoogle Scholar
Pearson, H. and McKenzie, A. B wakes in axial compressors. Aeronaut. J., 1959, 63, (583), pp 415416.CrossRefGoogle Scholar
Mazzawy, R.S. Multiple segment parallel compressor model for circumferential flow distortion. ASME. J. Eng. Power, 1977, 99, (2), pp 288296.CrossRefGoogle Scholar
Williams, D.D. and Yost, J.O. Some aspects of inlet/engine flow compatibility. Aeronaut. J., 1973, 77, (753), pp 483492.CrossRefGoogle Scholar
Ball, W.H. Inlet planar waves: a current perspective. Proceedings of the ASME 1991 International Gas Turbine and Aeroengine Congress and Exposition. Volume 2: Aircraft Engine; Marine; Microturbines and Small Turbomachinery, American Society of Mechanical Engineers (ASME), June 3–6, 1991, p V002T02A044.Google Scholar
Martin, N.J. and Holzhauser, C.A. Analysis of factors influencing the stability characteristics of symmetrical twin-intake air-induction systems. NACA- Report TN-2049, 1950.Google Scholar
Anderson, W.E. and Perkins, E.W. Effects of unsymmetrical AirFlow characteristics of twin-intake air-induction Systems on Airplane Static Stability at Supersonic Speeds. NACA- Report TM-X-942049, 1959.Google Scholar
Seddon, J. and Trebble, W. Model Test on the Asymmetry of Airflow Occurring in Twin-Intake Systems at Subsonic Speeds. London: Aeronautical Research Council Repts. and Memoranda 2910, 1955.Google Scholar
Sudhakar, K. and Ananthkrishnan, N. Jump phenomena in Y-shaped intake ducts. J. Aircraft, 1996, 33, (2), pp 438439.CrossRefGoogle Scholar
Askari, R. and Soltani, M.R. Flow asymmetry in a Y-shaped diverterless supersonic inlet: a novel finding. AIAA J., 2020, 58, (6), pp 26092620.CrossRefGoogle Scholar
Ki, D. and Lee, Y. An experimental study on the intake boundary layer diverter heights for transonic aircraft. 34th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, American Institute of Aeronautics and Astronautics (AIAA), 1998, p 3581.CrossRefGoogle Scholar
Hall, G., Hurwitz, W., Tiebens, G, Norby, W., Singshinsuk, P. and Wilt, C. Development of the F/A-18 E/F air induction system. 29th Joint Propulsion Conference and Exhibit, American Institute of Aeronautics and Astronautics (AIAA), 1993, p 2152.CrossRefGoogle Scholar
Philhower, J., Robinson, D. and Brown, R. Development of a highly offset induction system for a supersonic STOVL fighter. 34th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, American Institute of Aeronautics and Astronautics (AIAA), 1998, p 3417.CrossRefGoogle Scholar
Ramachandra, S.M., Sudhakar, K., Perumal, P.V.K. and Jayasimha, P. Air-Inlet engine matching problems encountered in a jet trainer re-engining program. J. Aircraft, 1982, 19, (8), pp 609614.CrossRefGoogle Scholar
MacManus, D.G., Chiereghin, N., Prieto, D.G. and Zachos, P.K. Complex aeroengine intake ducts and dynamic distortion. AIAA J., 2017, 55, (7), pp 23952409.CrossRefGoogle Scholar
Gil-Prieto, D., MacManus, D.G., Zachos, P.K., Tanguy, G. and Menzies, K.R. Convoluted intake distortion measurements using stereo particle image velocimetry. AIAA J., 2017, 55, (6), pp 18781892.CrossRefGoogle Scholar
Society of Automotive Engineers. Gas turbine engine inlet flow distortion guidelines. Society of Automotive Engineers Report SAE ARP1420, 1978.Google Scholar
Welch, P. The use of fast Fourier transform for the estimation of power spectra: a method based on time averaging over short, modified periodograms. IEEE Trans. Audio Electroacoust., 1967, 15, (2), pp 7073.CrossRefGoogle Scholar
Newsome, R.W. Numerical simulation of near-critical and unsteady, subcritical inlet flow. AIAA J., 1984, 22, (10), pp 13751379.CrossRefGoogle Scholar
Macmiller, C. and Haagenson, W. Unsteady inlet distortion characteristics with the B-1B. Paper presented at the 68th(A) Specialists Meeting of the AGARD Propulsion and Energetics Panel on Engine Response to Distorted Inflow Conditions, AGARD, Munich, Germany, September 8--9, 1986.Google Scholar