A pitot-static tube, with a coefficient of 0.98 is used to measure the velocity of water in a pipe. The stagnation pressure recorded is 3m and the static pressure is 0.5 m. What is the velocity of flow?
V=CV√2g(ρstag−ρstatic)
=0.98×√2×9.81×(3−0.5)
= 6.86 m/s