The HM 162.51 is a fully functional model of a Venturi channel measuring device. Its action is produced by a horizontally arranged constriction of the channel cross-section; this is formed using 2 Plexiglass side bodies. In this way the cross-section of the constriction is clearly visible. The flow processes of subcritical and supercritical flow can be clearly observed. Along with a flow rate measurement, an energy balance after Bernoulli can be clearly demonstrated in conjunction with the pitotstatic tube HM 162.50 and HM 162.59.
Learning Objectives / Experiments
- Flow rate measurement in open flumes using the continuity equation - Investigation of flow and supercritical flow states
For measurement of water levels, the use of the level gauge HM 162.54 on the moving instrument carriage HM 162.59 is recommended.
* Device for determining the flow rate in rivers and
 Experimental set-up for fitting to the HM 162 Flow Channel  Experimental set-up consisting of base plate, 2 side pieces, an adjusting screw, mounting bolts and seals
 l x w x h 900x304x450mm
Material: Plexiglass Side element l x w x h: 870x78x430mm Smallest cross-section, Venturi nozzle: 148mm
Dimensions and Weight
l x w x h: 900 x 304 x 450 mm Weight: approx. 20 kg