Isentropic Gas Flow
Description
Precision:
Ratio of specific heats
γ
Ideal gas constant (J kg
-1
K
-1
)
R
Calculate Values From The Mach Number
Mach Number
Ma
Total pressure (Pa)
p
0
Total temperature (K)
T
0
Ratio to total values
Pressure
p/p
0
Temperature
T/T
0
Density
ρ/ρ
0
Ratio to sonic values
Pressure
p/p
*
Temperature
T/T
*
Density
ρ/ρ
*
Area
A/A
*
Absolute values
Pressure (Pa)
p
Temperature (K)
T
Density (kg m
-3
)
ρ
Sound speed (m s
-1
)
c
Velocity (m s
-1
)
u
Calculate Mach Numbers From The Area Ratio
Area / sonic area
A/A
*
Mach number (subsonic)
Ma
1
Mach number (supersonic)
Ma
2