
A pitot tube is a small transparent open tube bent at right angle. The basic purpose is to measure the flow i.e. Velocity of the fluid. The point where the velocity of the fluid is zero is known as stagnation point. The pressure at that point is known as stagnation pressure.
p + 1/2 ρ v2 + γ h = constant along a streamline (1)
where
p = static pressure (relative...