Bluntness Effects in Hypersonic Flow over Slender Cones and Wedges

  • Sebastian Karl
  • Klaus Hannemann
  • Hans G. Hornung
Conference paper

Introduction

In hypersonic flow over slender bodies an important concern is the influence of nose bluntness on the viscous boundary layer behavior. This is particularly important in the consideration of boundary layer instability and transition. There exist numerous treatments, both theoretical and experimental on this subject. Representative excellent examples are [1] and [2] In this study we use the deviation from sharp–body theory of the heat flux distribution as obtained from computations of viscous perfect–gas flow over blunted slender bodies at zero incidence to estimate the point where the body has forgotten that it is blunt.

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References

  1. 1.
    Rotta, N.R.: Effects of nose bluntness on the boundary layer characteristics of conical bodies at hypersonic speeds. New York University Report NYU–AA-66-66 (1966)Google Scholar
  2. 2.
    Stetson, K.F.: Nosetip bluntness effects on cone frustum boundary layer transition in hypersonic flow. AIAA-83-1763 (1983)Google Scholar
  3. 3.
    Schwamborn, D., Gerhold, T., Heinrich, R.: The DLR TAU Code: Recent Applications in Research and Industry. In: Proceedings of the European Conference on Computational Fluid Dynamics ECCOMAS CFD 2006 (2006), http://tau.dlr.de

Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Sebastian Karl
    • 1
  • Klaus Hannemann
    • 1
  • Hans G. Hornung
    • 2
  1. 1.DLR-AS/RFGermany
  2. 2.GALCIT, CaltechPasadenaUSA

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