<DOC>
<DOCNO>
541
</DOCNO>
<TITLE>
similitude of hypersonic flows over slender bodies
in non-equilibrium dissociated gases .
</TITLE>
<AUTHOR>
inger,g.r.
</AUTHOR>
<BIBLIO>
a.i.a.a. j. 1963, 46.
</BIBLIO>
<TEXT>
  this paper is concerned with the similitude laws
governing inviscid, nonequilibrium gas flows
around blunt or sharp-nosed slender bodies at
zero angle of attack, based on the hypersonic
small disturbance flow theory .  some related
features of the interaction between the effects of
nose bluntness and nonequilibrium dissociation
and vibration and the influence of a dissociated
freestream are also discussed .  the
hypersonic equivalence principle and the related
similitude for affinely related bodies are set
forth for nonequilibrium flows in either diatomic
gases or a gas mixture such as air .  for a family
of diatomic gases, as opposed to a given gas
such as air, a generalized ambient gas state
scaling condition is obtained, whereby the ambient
density and temperature need not be
simulated .  a detailed discussion is given of
blunted cylinders and slabs or sharp-nosed
cones and wedges, including example nonequilibrium
flow field correlations of numerical
solutions available in the literature .  low density
nonequilibrium flows with a negligible shock
layer atom recombination rate are also examined
,. as expected, a less restrictive small
disturbance similitude law is obtained in this
case .
</TEXT>
</DOC>
