Description

The apparatus comprises a clear acrylic cylinder on a plinth designed to produce and measure free and forced vortices.

The free vortex is generated by water discharging through an interchangeable orifice in the base of the cylinder, and the resulting profile is measured using a combined calliper and depth scale. The forced vortex is induced by a paddle in the base of the cylinder, which is rotated by jets of water. The profile of the forced vortex is determined using a series of depth gauges. Velocity at any point in the free or forced vortices may be measured using the appropriate pitot tube supplied.

Specification

• Tank diameter: 245mm
• Height to overflow point: 180mm
• Orifice diameters: 8, 12, 16 and 24mm

Forced vortex measuring probes

• Distance from centre: 0, 30, 50, 70, 90 and 110mm
• Pitot tubes having approx. measuring point (nose) at: 15, 25 and 30mm radius
• Inlet tubes: 9 and 12.5mm diameter Approx.

Standards

• Machinery Directive 2006/42/EC

Dimensions

• LxWxH: 600 x 500 x 460 mm