Skip to main content
SpringerLink
Log in

Experimental Study on Wave Drag Reduction at Slender Bodies by a Self-aligning Aerospike

  • Chapter
  • First Online:
New Results in Numerical and Experimental Fluid Mechanics IX

Part of the book series: Notes on Numerical Fluid Mechanics and Multidisciplinary Design ((NNFM,volume 124))

Abstract

This work describes experimental results of a wave drag reducing device tested in the Transonic Wind Tunnel in Göttingen both under static and dynamic conditions. By means of a self-aligning aerospike, the total drag of a blunt-nosed slender body has been reduced by up to 25–30 % for Mach numbers between \(M = 1.4\) and \(M = 2.2\). Here, self-aligning means that the spike can pitch freely around its mounting axis and is positioned automatically in direction of the oncoming flow by means of two small vanes. Wind tunnel experiments showed that the spike was able to align with the flow direction even during a fast pitching maneuver (forced sinusoidal movement at \(f \le 7.5\,\mathrm{Hz}\) and \(\alpha = 0^{\circ } \dots 20^{\circ }\)).

This is a preview of subscription content, log in via an institution to check access.

Access this chapter

Log in via an institution
Chapter
USD 29.95
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
eBook
USD 129.00
Price excludes VAT (USA)
  • Available as EPUB and PDF
  • Read on any device
  • Instant download
  • Own it forever
Hardcover Book
USD 169.99
Price excludes VAT (USA)
  • Durable hardcover edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info

Tax calculation will be finalised at checkout

Purchases are for personal use only

Institutional subscriptions

Notes

  1. 1.

    clean = configuration without the spike

References

  1. Furey, R.J.: Minimum-energy hypersonic nose and leading-edge shapes. Spacecraft and Rockets 9(2), 107–115 (1972)

    Article  Google Scholar 

  2. d’Humières, G., Stollery, J.L.: Drag reduction on a spiked body at hypersonic speeds. Aeronaut. J. 14(1152), 113–119 (2010)

    Google Scholar 

  3. Venukumar, B., Jagadeesh, G., Reddy, K.P.J.: Counterflow drag reduction by supersonic jet for a blunt body in hypersonic flow. Phys. Fluids 18, 118104 (2006)

    Article  Google Scholar 

  4. Kim, J.-H., Matsuda, A., Sakai, T., Sasoh, A.: Wave drag reduction with acting spike induced by laser-pulse energy depositions. AIAA J. 49(9), 2076–2078 (2011)

    Article  Google Scholar 

  5. Schülein, E., Zheltovodov, A.: Effects of steady flow heating by arc discharge upstream of non-slender bodies. Shock Waves 21, 383–396 (2011)

    Article  Google Scholar 

  6. Bushnell, D.M.: Shock wave drag reduction. Annu. Rev. Fluid Mech. 36, 81–96 (2004)

    Article  MathSciNet  Google Scholar 

  7. Ahmed, M.Y.M., Qin, N.: Drag reduction using aerodisks for hypersonic hemispherical bodies. J. Spacecraft and Rockets 47(1), 62–80 (2010)

    Article  Google Scholar 

  8. Schülein, E.: Shock-wave control by permeable wake generators. In: 5th Flow Control Conference, AIAA, pp. 2010–4977 (2010)

    Google Scholar 

  9. Schülein, E.: Wave drag reduction approach for blunt bodies at high angles of attack: proof-of-concept experiments. In: 4th Flow Control Conference, AIAA, pp. 2008–4000 (2008)

    Google Scholar 

  10. Moeckel, W.E.: Flow separation ahead of blunt bodies at supersonic speeds. NACA TN 2418 (1951)

    Google Scholar 

  11. Chang, P.K.: Separation of flow. Pergamon Press, Oxford (1970)

    MATH  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. DLR Institute of Aerodynamics and Flow Technology, Bunsenstraße 10, 37073, Goettingen, German

    Oliver Wysocki, Erich Schülein & Christian Schnepf

Authors
  1. Oliver Wysocki
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Erich Schülein
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Christian Schnepf
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Oliver Wysocki .

Editor information

Editors and Affiliations

  1. Institut für Aerodynamik und Strömungstechnik, German Aerospace Center (DLR), Göttingen, Germany

    Andreas Dillmann

  2. Airbus Deutschland, Bremen, Germany

    Gerd Heller

  3. Institut für Aerodynamik und Gasdynamik, University of Stuttgart, Stuttgart, Germany

    Ewald Krämer

  4. Deutsches Zentrum für Luft-und Raumfahrt (DLR), Institut für Aerodynamik und Strömungstechnik, Göttingen, Germany

    Hans-Peter Kreplin

  5. Institut für Luft- und Raumfahrt, TU Berlin, Berlin, Germany

    Wolfgang Nitsche

  6. Institut für Aerodynamik und Gasdynamik, University of Stuttgart, Stuttgart, Germany

    Ulrich Rist

Rights and permissions

Reprints and permissions

Copyright information

© 2014 Springer International Publishing Switzerland

About this chapter

Cite this chapter

Wysocki, O., Schülein, E., Schnepf, C. (2014). Experimental Study on Wave Drag Reduction at Slender Bodies by a Self-aligning Aerospike. In: Dillmann, A., Heller, G., Krämer, E., Kreplin, HP., Nitsche, W., Rist, U. (eds) New Results in Numerical and Experimental Fluid Mechanics IX. Notes on Numerical Fluid Mechanics and Multidisciplinary Design, vol 124. Springer, Cham. https://doi.org/10.1007/978-3-319-03158-3_59

Download citation

  • DOI: https://doi.org/10.1007/978-3-319-03158-3_59

  • Published:

  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-03157-6

  • Online ISBN: 978-3-319-03158-3

  • eBook Packages: EngineeringEngineering (R0)

Publish with us

Policies and ethics

Search

Navigation