arsptp - (Rayleigh-)Pitot relations given p0/p or p02/p1

Compressible Flow Subroutine Library
Programming Reference Manual
Version 1.0 DD-00008-110

DOUBLE PRECISION FUNCTION AR15AB(G,P0,IS_SUB,IERR)
  DOUBLE PRECISION G, P0
  LOGICAL IS_SUB
  INTEGER IERR

Compute the Rayleigh-Pitot properties given a one of the pressure ratios $p0/p$ or $p02/p1$ .

Performance

Arguments


Argument	Intent	Description

g	in	Specific heat constant $γ$ .
p0	in	The pressure ratio $p0/p≥ 1$ or $p02/p1≥ ((1+γ)/2)(γ/(γ-1))$ depending upon is_sub.
is_sub	in	Whether p0 refers to a Pitot pressure fraction (true) or to a Rayleigh-Pitot pressure fraction (false).
result	out	Array with result properties as described in 13.
ierr	out	(optional) Return status code

Status codes

Return Values
The Mach number $M$ or NAN on error.