This paper presents a numerical tool for the simulation of supply chains based on two different fluid dynamic models. One is based on a mixed continuum-discrete model, it means that the load dynamics are solved in a continuous way on the arcs, and at the nodes imposing the conservation of the goods density, but not of the processing rate. In fact, each arch is modelled by a system of two equations: a conservation law for the goods density, and an evolution equation for the productive capacity. According to the other model, the load dynamics are described by a conservation law, with constant processing rate, inside each supply subchain, and an entering queue for exceeding parts. The dynamics at a node are solved considering an ode for the queue. The realized tool allows to reproduce the state of the densities on arcs through coloured animations.

A graphical tool for the simulation of supply chains using fluid dynamic models

CUTOLO, ALFREDO;DE NICOLA, CARMINE;MANZO, Rosanna
2008-01-01

Abstract

This paper presents a numerical tool for the simulation of supply chains based on two different fluid dynamic models. One is based on a mixed continuum-discrete model, it means that the load dynamics are solved in a continuous way on the arcs, and at the nodes imposing the conservation of the goods density, but not of the processing rate. In fact, each arch is modelled by a system of two equations: a conservation law for the goods density, and an evolution equation for the productive capacity. According to the other model, the load dynamics are described by a conservation law, with constant processing rate, inside each supply subchain, and an entering queue for exceeding parts. The dynamics at a node are solved considering an ode for the queue. The realized tool allows to reproduce the state of the densities on arcs through coloured animations.
2008
9788890372407
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11386/1846047
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