[constants]

Sets constants used in the simulation

1. gamma — ratio of specific heats for euler | navier-stokes:

   float

2. mu — dynamic viscosity for navier-stokes:

   float

3. nu — kinematic viscosity for ac-navier-stokes:

   float

4. Pr — Prandtl number for navier-stokes:

   float

5. cpTref — product of specific heat at constant pressure and reference temperature for navier-stokes with Sutherland’s Law:

   float

6. cpTs — product of specific heat at constant pressure and Sutherland temperature for navier-stokes with Sutherland’s Law:

   float

7. ac-zeta — artificial compressibility factor for ac-euler | ac-navier-stokes

   float

Other constant may be set by the user which can then be used throughout the .ini file.

Example:

[constants]
; PyFR Constants
gamma = 1.4
mu = 0.001
Pr = 0.72

; User Defined Constants
V_in = 1.0
P_out = 20.0