Abstract
The Method of Characteristics (MOC) is utilized effectively in many industries to calculate hydraulic transients in almost all pipeline systems. Recently it has been suggested as a suitable calculation procedure for long term (extended time) quasi-steady flow problems. It might serve as an alternative approach to using rigid water-column (lumped inertia) calculations, or to integrating over time with a series of steady state calculations, which are two procedures receiving recent attention. This paper provides a unique approach within the MOC framework, by modifying terms in the pipeline partial differential equations. When carried through the MOC it leads to a minor modification in a transient code by introducing the two new parameters. The method is developed and applied to a network example herein.
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