The following table contains a list of variables (with both long and short variable names) that can be used when working with compressible flows.
Note: Variables with names shown in bold text are not output to CFD-Post. However, some of these variables can be output to CFD-Post by selecting them from Extra Output Variables List on the Results tab of the Solver > Output Control details view of CFX-Pre.
|
Long Variable Name |
Short Variable Name |
Units |
Availability |
Definition |
|---|---|---|---|---|
|
Isobaric Compressibility |
compisoP |
[K^-1] |
2 C, M, R |
|
|
Isothermal Compressibility |
compisoT |
[m s^2 kg^-1] |
2 C, M, R |
Defines the rate of change of the system volume with pressure.
|
|
Mach Number |
Mach |
[ ] |
1 A, C, M, R, TS |
For details, see List of Symbols in the CFX-Solver Theory Guide. |
|
Shock Indicator |
shock indicator |
[ ] |
2 A, C, M, R, TS |
The variable takes a value of 0 away from a shock and a value of 1 in the vicinity of a shock. This variable is available only if Solver Control > Advanced Options > Compressibility Control > High Speed Numerics is selected. |
|
Isentropic Compressibility |
compisoS |
[m s^2 kg^-1] 
|
2 C, M, R |
The extent to which a material reduces its volume when it is subjected to compressive stresses at a constant value of entropy.
|
