Advection-dispersion Transport In Water Distribution Networks With Intermittent Flow
Author(s)
V.G.Tzatchkov, F.I.Arreguin, A.A.Aldama, S.G.Buchberger, Y.Lee
Abstract
Advection-dispersion transport in water
distribution networks with intermittent flow
V.G. Tzatchkov*, A.A. Aldama*, F.I. Arregum\ S.G. Buchberger^
& Y.-H. Lee^
^Institute Mexicano de Tecnologia del Agua, Mexico
^University of Cincinnati, USA
Abstract
Predictions of known advection-reaction models for one-dimensional transport
and decay of constituents in drinking water distribution networks (such as
EPANET) tend to be less reliable in pipes with low flow velocity where
dispersion may dominate. An Eulerian-Lagrangian advection-dispersion-reaction
model (IMTARED) has been developed to accurately predict the concentration
evolution in pipes, especially those with laminar flow conditions. This paper
extends the proposed advection-dispersion-reaction model to include dispersion
in intermittent laminar flow. Intermittent laminar flow conditions are quite
common in dead-end zones of water distribution systems. The stop-and-go nature
of intermittent flow, however, perpetuates the initial
Keywords
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