Hydraulic Roughness of Corrugated Pipes

by Charles R. Neill,

Serial Information: Journal of the Hydraulics Division, 1962, Vol. 88, Issue 3, Pg. 23-44

Document Type: Journal Paper


Original data on friction losses in two types of corrugated-metal pipes, obtained in the course of investigations into the hydraulic behavior of corrugated-metal culverts, are reported. A comprehensive friction factor-Reynold's number diagram, incorporating all published data on corrugated-metal pipes, is presented and used to develop a relationship between peak friction factors and relative depth of corrugations. A flow formula is developed to replace the Manning formula, but a table of n values, for use with the Manning formula, is also given.

Subject Headings: Friction | Metals (material) | Hydrologic data | Culverts | Pipe flow | Hydraulic roughness

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