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Shock Waves pp 713-718 | Cite as

Tandem spheres in hypersonic flow

  • S.J. Laurence
  • R. Deiterding
  • H.G. Hornung
Conference paper

The problem of determining the forces acting on a secondary body when it is travelling at some point within the shocked region created by a hypersonic primary body is of interest in such situations as store or stage separation, re-entry of multiple vehicles, and atmospheric meteoroid fragmentation. The current work is concerned with a special case of this problem, namely that in which both bodies are spheres and are stationary with respect to one another. We first present an approximate analytical model of the problem; subsequently, numerical simulations are described and results are compared with those from the analytical model. Finally, results are presented from a series of experiments in the T5 hypervelocity shock tunnel in which a newly-developed force-measurement technique was employed.

Keywords

Blast Wave Shocked Region Freestream Mach Number Secondary Body Freestream Condition 
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References

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    Lees. L: Hypersonic Flow, Proc. 5th Int. Conf. Los Angeles, 1955, pp 241–276Google Scholar
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    Deiterding R.: Detonation structure simulation with AMROC. High Performance Computing and Communications 2005, Lecture Notes in Computer Science 3726, 2005, pp 916–927Google Scholar
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    McIntosh M.: Computer Program for the Numerical Calculation of Frozen and Equilibrium Conditions in Shock Tunnels. %Department of Physics,Australian National University, Canberra A.C.T., 1968Google Scholar
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    Lordi J. A., Mates R. E., Moselle, J. R.: Computer program for the numerical solution of nonequilibrium expansions of reacting gas mixtures. NASA CR-474, 1966Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2009

Authors and Affiliations

  • S.J. Laurence
    • 1
  • R. Deiterding
    • 2
  • H.G. Hornung
    • 1
  1. 1.Graduate Aeronautical LaboratoriesCalifornia Institute of TechnologyPasadenaUSA
  2. 2.Oak Ridge National LaboratoryOak RidgeUSA

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