Flow nozzle
<img src="https://eng-calculations.com/SVG/Hydraulic_engineering/Flow_meters/Flow nozzle.svg" alt="Flow_nozzle" title="Flow_nozzle">
https://eng-calculations.com/SVG/Hydraulic_engineering/Flow_meters/Flow nozzle.svg
<img src="https://eng-calculations.com/SVG/Hydraulic_engineering/Flow_meters/Flow nozzle.svg" alt="Flow_nozzle" title="Flow_nozzle">
https://eng-calculations.com/SVG/Hydraulic_engineering/Flow_meters/Flow nozzle.svg