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Products  |  Fluid Mechanics  |  Hydraulics for Civil Engineering  |  HM 160  |  HM 160.30
HM 160.30 Set of Plate Weirs, 4 Types Show data sheet (pdf file) Print page
Technical Description
The overshoot weir is one of the fixed forms of weirs, the water flows over the weir. The experimental set-up is placed on the flume base and positioned using bolts. The set-up consists of the weir plate on a mounting frame and lockable aeration tubes. Plastic tubular seals inserted in slots on the side of the weir plate complete the experimental set-up. The weir crest is chamfered at 45 and thus enables sharp edged, aerated overshoot. On real weirs, aerated overshoot is used to prevent oscillations in the weir locks; in the experiment the influence of the aerated zone on the flow at different flow rates is demonstrated.
Learning Objectives / Experiments
In conjunction with the HM 160, the following experiments are possible:
Discharge on an overflow weir
Investigation of flow action on aerated and non-aerated overflow
Occurrence of separation on a sharp edged weir
Difference between attached and separated flow

For the exact measurement of water levels, the HM 160.52 Level Gauge is recommended.
Investigations on an aerated overshoot weir
[1] Fixed overshoot weir for fitting to the HM 160 Multi-Purpose Teaching Flume
[2] Experimental set-up for placing on the base of the flume, lxwxh 185x84x200mm
[3] Weir crest chamfered at 45
[4] Weir body with lockable aeration tubes
Dimensions and Weight
l x w x h: 185 x 84 x 200 mm
Weight : approx. 1 kg
Scope of Delivery
1 experimental set-up, 1 set of accessories,
1 instruction manual
Order Details
070.16030 HM 160.30 Overshoot Weir
© 2005 G.U.N.T. Gerätebau GmbH