Scale Effects at Intakes Due to Boundary Layer Growth

by John W. Taylor, British Columbia Hydro, Canada,



Document Type: Proceeding Paper

Part of: Hydraulic Engineering

Abstract:

Boundary layer development in hydraulic models of intakes based on Froude criteria can be poorly scaled because it is viscosity dependent. The potential for scale effects can be estimated assuming boundary layer growth on a flat plate. The effects of boundary layer development on gate slot pressures, flowmeter calibration, friction losses, and bends are discussed.

Subject Headings: Water intakes | Boundary layers | Hydraulic models | Scale effect | Gates (hydraulic) | Friction | Fluid flow

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