FM 100.22

Free and Forced Vortex, Rotating paddle

Used in conjunction with FM 100 Hydraulics Bench

To produce and measure free and forced vortices.  Clear acrylic cylinder on a plinth.  Free vortex by water discharging through interchangeable orifice at the base; profile measured by calliper and depth scale.  Forced vortex by a paddle at the base rotated by water jets; profile measured by series of depth gauges.  Velocity at any point is measured by Pitot tube.