Mathematical models for the prediction of temperature distributions resulting from the discharge of heated water into large bodies of water

Koh, Robert C. and Fan, Loh-Nien (1970) Mathematical models for the prediction of temperature distributions resulting from the discharge of heated water into large bodies of water. Washington D.C, United States. Environmental Protection Agency. Water Quality Office., 219pp. (Water Pollution Control Research Series)

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Abstract

Mathematical models for heated water outfalls were developed for three flow regions. Near the source, the subsurface discharge into a stratified ambient water issuing from a row of buoyant jets was solved with the jet interference included in the analysis. The analysis of the flow zone close to and at intermediate distances from a surface buoyant jet was developed for the two-dimensional and axisymmetric cases. Far away from the source, a passive dispersion model was solved for a two dimensional situation taking into consideration the effects of shear current and vertical changes in diffusivity. A significant result from the surface buoyant jet analysis is the ability to predict the onset and location of an internal hydraulic jump. Prediction can be made simply from the knowledge of the source Froude number and a dimensionless surface exchange coefficient. Parametric computer programs of the above models are also developed as a part of this study. This report was submitted in fulfillment of Contract No. 14-12-570 under the sponsorship of the Federal Water Quality Administration.

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