To demonstrate that when a liquid flows through a tube having a constriction, the speed
of flow is increased and pressure decreased in the constricted section.
A horizontal tube 500 mm long 12mm
O.D. is
constricted near its centre and short side tubes are provided in each section for attaching glass manometer
tubes 270 x 8 mm
bore. If a constant head device is used to send a flow of water through the horizontal tube the
variation of pressure in
various sections may be determined.