Mixing of Salinity-Stratified Water by Pneumatic Barriers. Report 1. Preliminary Investigations. Hydraulic Model Investigation.
Abstract
Preliminary tests were conducted at the U. S. Army Engineer Waterways Experiment Station to identify the process involved in mixing salinity-stratified bodies of water by means of a pneumatic (bubble) screen. Salinity, velocity, and photographic data from these tests serve as a basis for planning experiments that will ultimately develop scaling relations for the use of pneumatic screens as mixing devices. In a two-dimensional flume with an initially two-layer, density-stratified system, the flow pattern created by the operation of a pneumatic screen is a three-layer system. This flow was shown by flume tests using dye tracers on each side of the screen. A circulation cell is formed that draws water toward the pneumatic screen in the upper and lower layers, mixes the different-density waters in the immediate vicinity of the screen, and discharges the mixture as an intermediate-density wedge flowing away from the screen alongthe initial density interface. (Modified author abstract)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1973
- Accession Number
- AD0762132
Entities
People
- William H. Mcanally Jr.