Accurate Analysis of Water Pipelines by New Modeling of Scattered Outflows along Pipes
Akihiko UDO, Kouji OGUCHI
This paper presents a new method of steady-state flow analysis in a water distribution network. First, a new model, which fully reflects the real state that quantities of water are withdrawn from the network at points along its links, is proposed. Second, outflows can be made possible to be given as functions of pressures. The formulated problem is solved by the Newton-Raphson method. Despite the existence of numerous demand points, only the heads at nodes where pipes meet are chosen as unknowns.
In consequence, analysis using an acculate model of outflows is made possible without augmenting the practical scale of the problem.