Special FPS Units
The base units in the FPS unit system are identical to the SI units with the following exceptions:
Table 3-20:
Special Base Units in the FPS Unit System.
Base quantity
name
symbol
Comment
length
foot
ft
mass
pound
lb
temperature
Fahrenheit
degF
For the FPS unit system
temperature
Rankine
R or Ra
For the FPS (Rankine) unit system
There is one derived unit that differs from the corresponding SI unit:
Table 3-21:
Derived FPS Units in COMSOL.
Derived quantity
name
symbol
force
poundal
N/A