International Commission on Irrigation & Drainage Commission Interationale des Irrigation et du Drainage



(2871) Hydraulic rollers, Circular roller, Elliptical roller, Vertical roller, Horizontal roller, Inclined roller, Submerged roller, or Surface roller
Flow of water adopting circular or elliptical motion round a vertical, horizontal or inclined axis lending the appearance of a roller within or at the surface of the stream. They are named circular or elliptical rollers according to the shape adopted while the direction of axis lends the designation of vertical, horizontal or inclined rollers. According to their location they are called submerged or surface rollers.

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