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Experimental investigation of the aerodynamic characteristics of generic fan-in-wing configurations

Published online by Cambridge University Press:  03 February 2016

N. Thouault ,
C. Breitsamter ,
N. A. Adams ,
C. Gologan  and
J. Seifert
N. Thouault
Affiliation:
Institute of Aerodynamics, Technische Universität München, Garching, Germany
C. Breitsamter
Affiliation:
Institute of Aerodynamics, Technische Universität München, Garching, Germany
N. A. Adams
Affiliation:
Institute of Aerodynamics, Technische Universität München, Garching, Germany
C. Gologan
Affiliation:
Bauhaus Luftfahrt e.V., Garching, Germany
J. Seifert
Affiliation:
Bauhaus Luftfahrt e.V., Garching, Germany
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Abstract

This experimental investigation concentrates on the aerodynamic behaviour of a generic fan-in-wing configuration. The effects of the fan(s) on the flow circulation in a short take-off and landing or a transition flight condition without ground effect are evaluated. A wind-tunnel model has been constructed and tested to quantify the aerodynamic effects. Force measurements, surface pressure measurements, stereo-particle image velocimetry and wool tufts flow visualisation are performed. Different fan-in-wing configurations with the fans rotating in the wing plane, one fan either at the rear or front part of the wing and two fans are compared to the closed wing without fans set as reference. A fan placed near the trailing edge improves significantly the lift coefficient due to a jet flap effect on the wing lower side combined with enhanced suction on the wing upper side. The jet exiting the nozzle rolls up in a counter rotating pair of vortices affecting significantly the wing behaviour.

This experimental investigation constitutes also a useful database for further CFD comparison.

Type
Research Article
Information
The Aeronautical Journal , Volume 113 , Issue 1139 , January 2009 , pp. 9 - 20
Copyright
Copyright © Royal Aeronautical Society 2009 

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References

1. Gologan, C., Conceptual design of a STOL regional-jet with hybrid propulsion system, Proceeding of the International Congress of the Aeronautical Sciences, Anchorage, USA, September 2008.Google Scholar
2. Hickey, D.H. and Ellis, D.R., Wind tunnel tests of a semispan wing with a fan rotating in the plane of the wing, NASA TN-D88, 1959.Google Scholar
3. Hickey, D.H. and Hall, L.P., Aerodynamic characteristics of a large-scale model with two high disk-loading fans mounted in the wing, NASA TN-D1650, USA, 1963.Google Scholar
4. Hall, L.P., Hickey, D.H. and Kirk, J.V., Aerodynamic characteristics of a full-scale fan-in-wing model including results in ground effect with nose-fan pitch control, USA, NASA-TN-D-2368, 1964.Google Scholar
5. Kirby, R.H. and Chambers, J.R., Flight investigation of dynamic stability and control characteristics of a 0.18-scale model of a fan-in-wing VTOL airplane, NASA-TN-D-3412, USA, 1966.Google Scholar
6. Oberto, R.J., Renselaer, D.J. and Alfano, D.L., Analysis of performance characteristics in ground effect of a large scale V STOL multi-fan-in-wing transport model, NASA-CR-1180, USA, 1968.Google Scholar
7. Heyson, H.H., The effect of wind tunnel wall interference on the performance of a fan-in-wing VTOL model, NASA-TN-D-7518, USA, 1974.Google Scholar
8. Wilson, J.C., Gentry, G.L. and Gorton, S.A., wind tunnel test results of a 1/8-scale model, NASA TM-4710, USA, 1996.Google Scholar
9. Schade, R.O., Ground interferences effects, NASA-TN-D-727, 1961.Google Scholar
10. Schaub, U.W., Experimental investigation of flow distortion in fan-in-wing inlets, J Aircr, 1968, 5, (5), pp 473–478.Google Scholar
11. Hodder, B.K., Kirk, J.V. and Hall, L.P., Aerodynamic characteristics of large-scale model with a lift fan mounted in a 5-percent-thick triangular wing, including the effects of BLC on the lift-fan-inlet, NASA TN D-7031, 1970.Google Scholar
12. Lieblein, S., Yuska, J.A. and Diedrich, J.H.. Performance characteristics of a model VTOL lift fan in crossflow, J Aircr, 10, (3), 1973, pp 131–136.Google Scholar
13. Hickey, D.H. and Cook, W.L., Aerodynamics of V/STOL aircraft powered by lift fans, AGARD CP 22, (15), September 1967.Google Scholar
14. Hickey, D.H. and Kirk, J.V., Studies of forces induced on V/STOL aircraft by propulsion flows, proceedings of the NASC workshop propulsion aerodynamics, 28-31 July, 1975.Google Scholar
15. Hickey, D.H. and Kirk, J.V., Survey of Lift-fan aerodynamic Technology, NASA CR 177615, USA, 1993.Google Scholar
16. Diedrich, J.H., Summary of model VTOL lift fan tests conducted at NASA Lewis Reseach Center, NASA TM X-71778, USA, 1975.Google Scholar
17. Przedpelski, Z.J., Lift fan technology studies, NASA CR-761, USA, 1967.Google Scholar
18. Lieblein, S., A review of lift fan propulsion systems for civil VTOL transports, NASA TM X-52829, USA, 1970.Google Scholar