TECHNICAL PAPERS
Oct 1, 1997

Scaling Laws for Hydrodynamic Separators

Publication: Journal of Environmental Engineering
Volume 123, Issue 10

Abstract

This paper reviews the way in which scaling protocols for solid-liquid separators have developed in the last 25 years and shows how modelers of hydrodynamic separators can be faced with a dilemma when choosing the appropriate dimensionless groups used for scaling. Laboratory results from a series of geometrically similar hydrodynamic separators (operating with no baseflow) are presented and correlations between efficiency and several nondimensional groups (conventionally used to compare the performance of solids liquid separators) are discussed. It is concluded that the use of single dimensionless groups such as Froude number has limited applicability in predicting full-scale separator performance. However it is shown that a hybrid protocol can successfully predict the efficiency of solids removal from full-scale hydrodynamic separators over a wide range of flow conditions.

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Information & Authors

Information

Published In

Go to Journal of Environmental Engineering
Journal of Environmental Engineering
Volume 123Issue 10October 1997
Pages: 1019 - 1026

History

Published online: Oct 1, 1997
Published in print: Oct 1997

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Authors

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R. A. Fenner
Prin. Lect., Dept. of Civ. Engrg., Univ. of Hertfordshire, Hatfield, AL10 9AB, England.
J. N. Tyack
Post-Doctoral Res. Fellow, Dept. of Civ. Engrg., Univ. of Hertfordshire, Hatfield, England.

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