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Shock Waves pp 125-130 | Cite as

Improvement of aerospike nozzle efficiency due to change of plug base configuration

  • S. Aso
  • K. Sugimoto
Conference paper

Abstract

The abstract Recently, plug nozzle (aerospike nozzle) begins to attract attention for development of single stage to orbit vehicle and so on. For example, it has been developed to X-33 or other reusable launch vehicle. However, aerospike nozzle still has many problems. In past times, we studied on boat-tail drag problem. The study showed that boat-tail drag could be reduced due to modification of its configuration(ISSW22, 4870).

Now, we challenge to improve efficiency of the nozzle due to changing plug base configuration. Mainly, the change is the addition of some prominence(we call this prominence “nail”). So, the flow fields around various plug base configurations have been numerically simulated at several pressure ratio in order to observe the effect of the plug base configuration on the total thrust.

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References

  1. 1.
    T. Ito and K. Fujii: tFlow field analysis of the base region of axisymmetric aerospike nozzles. AIAA 2001-1051 (2001)Google Scholar
  2. 2.
    J. Parler Lamb and William L. Oberkämpf: Review and development of base pressure and base heating correlations in supersonic flow. J. of Spaceceaft and Rockets 32(1), 8 (1995)ADSCrossRefGoogle Scholar

Copyright information

© Tsinghua University Press and Springer-Verlag Berlin Heidelberg 2005

Authors and Affiliations

  • S. Aso
    • 1
  • K. Sugimoto
    • 2
  1. 1.Kyushu UniversityFukuokaJapan
  2. 2.Mitsubishi Heavy Industry, Co. Ltd.NagasakiJapan

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