armcms - Compute given characteristic mach number, M*

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

DOUBLE PRECISION FUNCTION AR02AB(G,MSTAR,IERR)
  DOUBLE PRECISION G, MSTAR
  INTEGER IERR

Compute given the characteristic mach number, $M *$ . Note that if $√︁ ---------- M *= (γ+ 1)(γ-1)$ the function will return $M = ∞ = INFINITY$ .

Performance
Fixed

Parameters


Argument	Intent	Description

g	in	Specific heat constant $γ$
mstar	in	Characteristic mach number $* √︁ ---------- 0 <M ≤ (γ +1)(γ -1)$ .
ierr	out	(optional) Return status code

Status Codes

Return Value
Normal mach number $M$ or NAN on error.