|The complete setup of a Venturi
tube and a set of manometers and static taps to measure static pressure.
Holes have been drilled into the walls of the tube to measure the
static pressure. The block diagrams below the tube show the interchange
of dynamic and static pressures all along the tube. The conclusion
drawn from this is that the static pressure decreases in the region
of high-speed flow and increases in the region of low-speed flow.