<DOC>
<DOCNO>
583
</DOCNO>
<TITLE>
influence coefficients for real gases .
</TITLE>
<AUTHOR>
mario william cardullo
</AUTHOR>
<BIBLIO>
u.s. naval air rocket test station, lake denmark, dover, n.j.
</BIBLIO>
<TEXT>
in the analysis of one-dimensional fluid-flow problems, it is often
assumed that the behavior of the medium is that of a perfect gas .
this assumption is justified, provided the pressure and temperature
range of interest is small and near atmospheric .  at higher pressures
and temperatures various deviations are introduced thereby causing
deviations from the results obtained by using the ideal fluid-flow
equations .
in this note, influence coefficients, similar to those developed by
shapiro, are presented for the case of real gases .  this analysis is
based upon the use of various functions of the compressibility factor
emmons .  some of the assumptions made were as follows..  (1) the flow
is one-dimensional and steady, (2) changes in the stream properties
are continuous, and (3) the flow is comprised of imperfect gases
</TEXT>
</DOC>
