RE: Pitot static tube

randomy

Please help. I have a question thats been on my mind:

Static pressure is the pressure when moving with the fluid. Total pressure is the pressure when the fluid comes to a stop (i.e. V=0)

My question is what is the difference between the freestream static pressure measured in the wind tunnel and the one measured in real flight? What I mean is that in real flight the static probe (on a Pitot-static tube) measures the static pressure which is the same as the atmospheric pressure and does not vary with airspeed?...but in the wind tunnel the freestream static pressure (also from a Pitot static tube) would vary with airspeed?..am I right to say this?

Please help. Its driving me crazy.

Thanks in advance.