siphon d'évacuation
- Domaine
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- eau ouvrages de retenue
Termes :
- siphon d'évacuation n. m.
- évacuateur en syphon n. m.
- évacuateur à siphon n. m.
- évacuateur en charge à siphon n. m.
Traductions
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anglais
Auteur : Société d'énergie de la Baie James,Définition
An enclosed spillway which utilizes the principle or the siphon in functioning, the top of the inlet or an air vent being constructed at the elevation at which spilling is to cease, and the top of the inside of the tuve at the maximum elevation to which the water is to attain. When the level outside somewhat exceeds the elevation of the crest of the spillway, the air is exhausted in the tube, siphonic action commences, and the discharge through the siphon is greatly accelerated, When the water level falls below the top of the inlet or air vent, siphonic action is broken and discharge ceases.
Note :
Such siphons have a large capacity for a small rise in water level and allow a considerable reduction in length of spillway.
Terme :
- siphon spillway