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Main Title Measurement of Buoyant Jet Entrainment from Single and Multiple Sources.
Author Davis, L. R. ; Shirazi, M. A. ; Slegel, D. I. ;
CORP Author Corvallis Environmental Research Lab., OR.
Year Published 1977
Report Number EPA/600/J-77/129;
Stock Number PB-287 001
Additional Subjects Cooling towers ; Fluid flow ; Hydraulic jets ; Dimensionless numbers ; Entrainment ; Thermal pollution ; Water pollution ; Plumes ; Dilution ; Buoyancy ; Air entrainment ; Froude number ; Waste heat ; Point sources ; Reprints ; Mechanical draft cooling towers ; Waste water ; Natural draft cooling towers ; Buoyant plume model
Library Call Number Additional Info Location Last
NTIS  PB-287 001 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 10p
Abstract An experimental investigation was conducted to determine the dilution characteristics of single and multiple discharges typical of modern natural and mechanical draft cooling towers. Simultaneous measurements of velocity and tracer concentration profiles were taken at various downstream locations in three-dimensional plumes discharged into a stagnant ambient using a hot film anemometer and conductivity probe. The number of discharge ports was varied from one to seven. Discharge densimetric Froude numbers were varied from 1.5 to infinity. Numerical intergration of the profiles gave dilution tracer conservation, and momentum fluxes. The effect of reducing Froude number was to increase entrainment considerably. Increasing the number of discharge ports reduced the rate of entrainment. In multiple port discharges the shape of the plume changed from an elongated configuration to nearly axisymmetric within the first 20-30 diameters of discharge.
Supplementary Notes Pub. in ASME Publication 77-HT-43 P1-8.
NTIS Title Notes Journal article.
Title Annotations Reprint: Measurement of Buoyant Jet Entrainment from Single and Multiple Sources.
PUB Date Free Form 13 Apr 77
Category Codes 13B; 68D
NTIS Prices PC A02/MF A01
Primary Description 600/03
Document Type NT
Cataloging Source NTIS/MT
Control Number 323750133
Origin NTIS
Type CAT