The term “freestream total pressure” (,∞) refers to the total pressure of a fluid in the undisturbed flow far away from any significant sources of pressure changes or disturbances. It represents the pressure that the fluid would experience if it were brought to rest isentropically (without any losses due to friction or heat transfer) from its current velocity to zero velocity.
- Freestream total pressure (p0,∞) in N/m^2
- Ratio of total freestream pressure to freestream pressure (p0,∞/p∞)
- Freestream pressure (p∞) in N/m^2