Optimal Sizing of Width- and Depth-Constrained Trapezoidal Channels

by David C. Froehlich, (M.ASCE),

Document Type: Proceeding Paper

Part of: North American Water and Environment Congress & Destructive Water


Open-channels are often designed based on the assumption of uniform flow and normal depth. If a channel is to be lined with a nonerodible material, the dimensions of the channel can be chosen based on hydraulic efficiency alone without regard to excessive velocities. From a hydraulic viewpoint, the best open-channel cross section might be one that requires the least cross-section area for a given flow rate.

Subject Headings: Channels (waterway) | Trapezoidal channels | Open channels | Cross sections | Hydraulics | Hydraulic design | Uniform flow | Fluid velocity

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