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HM 162.40

DESCRIPTION

Technical Description

Radial gates are movable control structures. The water flows under the gate. The core element of a radial gate is a wall with the shape of a segment of a circle. The gate causes backwater in the flume.

Radial gates are often used in combination with a fixed control structure, e.g. a broad-crested weir. These combinations are typical for  barrages. With them the discharge in the open channel can be adjusted and controlled according to the needs. 

The gate opening of the radial gate HM 162.40 and therefore the discharge under the gate can be manually adjusted.


Learning Objectives / Experiments

- free discharge under a radial gate
- submerged discharge under a radial gate
- observation of jet contraction (vena contracta)
- observation of downstream hydraulic jumps

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