Morning Glory Inlet and Manifold Outlet Structure, McCook Reservoir, Chicago, Illinois. Hydraulic Model Investigation
Abstract
A 1:20.7-scale model of the morning glory intake for the McCook Reservoir Inlet, Chicago, IL, was used to develop and investigate a design that would provide satisfactory hydraulic performance. Tests were conducted to investigate the relationship between discharge, pool elevation, hydraulic gradient, and air entrainment in the discharge conduit. Tests indicated that air entrainment occurred only when the water surface was below the bottom of the cover plate. This air entrainment could be eliminated by reducing the discharge to below 550 cfs. Pressure measurement in the structure enabled the computation of losses and indicated no tendency for cavitation for any anticipated flow condition. A 1:40-scale model of the manifold outlet permitted evaluation and documentation of flow conditions in the wheel gate structure and manifold.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1991
- Accession Number
- ADA239044
Entities
People
- Bobby P. Fletcher