Accession Number : ADA119311

Title :   Blue Waters Ditch Pumping Station, East Saint Louis, Illinois. Hydraulic Model Investigation.

Descriptive Note : Final technical rept. Apr 78-Jan 80,

Corporate Author : ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS HYDRAULICS LAB

Personal Author(s) : Maynord,Stephen T

PDF Url : ADA119311

Report Date : Jun 1982

Pagination or Media Count : 93

Abstract : A model study of the Blue Waters Ditch pumping station was conducted to develop a sump design which was free of adverse flow distribution, excessive circulation, and air-entraining vortices. Operation of the model with the original design sump resulted in severe vortices for many of the anticipated operating conditions because the opening in the divider wall allowed substantial crossflow between pump bays. Also, the relatively large distance between the pump bell and the backwall permitted substantial circulation of flow in the original design sump. Most modifications of the approach to the sump were ineffective because of the many possible combinations of flow direction that may enter the sump. Performance was investigated with velocities higher than the appropriately scaled Froudian velocities.

Descriptors :   *Pumping stations, *Water flow, Illinois, Mississippi River, Flood control, Model tests, Hydraulic models, Sumps, Vortices, Walls, Modification

Subject Categories : Civil Engineering
      Pumps, Filters, Pipes, Tubing, Fittings & Vlvs
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE