Hydraulic Transport of Solids In A Sloped Pipe

by Cornelius C. S. Shih,

Serial Information: Journal of the Pipeline Division, 1964, Vol. 90, Issue 2, Pg. 1-14

Document Type: Journal Paper


The effects of heterogeneously suspended solids in a pressure flow of liquid on head losses or energy gradients for various pipe slopes, solid concentrations, and flow rates were investigated. Wooden balls, having an average specific gravity slightly larger than unity, were mixed with water in a heterogeneous suspension and transported through a lucite pipe in the experiments. Through proper choice of dimensionless parameters, the data were analyzed and presented in as general a form as possible. The results show that an increase of pipe slope, which does not affect the energy gradient of a clear water stream, evidently causes a rise of head loss from that in a horizontal pipe at a given solid concentration and flow rate. Also, the increase of solid concentration and flow rate raise the energy gradient in the pipe flow of solid-liquid mixtures.

Subject Headings: Solids flow | Pipe flow | Pressurized flow | Flow rates | Hydraulics | Solid mechanics | Slopes | Pipelines

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