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

3.8.7 arfitf - Isothermal relations given (4fL)/D
SUBROUTINE AR08AF(G,F,IS_SUB,RESULT,IERR)
  DOUBLE PRECISION G, F, RESULT(6)
  LOGICAL IS_SUB
  INTEGER IERR

Compute the isothermal relations given the characteristic line, (4fL)/D .

Performance
Iterative

Arguments

G - REAL

ENTRY: Specific heat constant γ .

F - REAL

ENTRY: Characteristic line (4fL)/D .

IS_SUB - BOOLEAN

ENTRY: Whether M corresponding to the given (4fL)/D is assumed to be sub- or super- sonic.

RESULT - ARRAY OF REAL

EXIT: Array with result properties as described in  6.

IERR - INTEGER

EXIT: (optional) Return status code.

Status codes

-1

Specific heat ratio γ≤ 1  .

-2

Computed M out of range.

-3

Given (4f L)/D out of range.

-4

Iterative solver failed.