The Josette: Improving the measurement accuracy of discharged flow

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Issue

The wider the weir crest, the higher the flowrate generated by low heads, which generate high uncertainties.

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The 3D EAU solution

The Josette increases the water head for low discharges, allowing for more accurate measurement.

The Josette is a rounded V-shaped weir.  The head-discharge relationship was validated numerically and experimentally as shown in the video below.

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Strong points

Charte graphique 3D EAU.bmp
  • Accurate flow measurement

  • Preservation of discharge capacity

  • No trapping of floating debris

  • Numerically and experimentally validated head-discharge relationship

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