1. Influence de l' élasticité de la paroi sur l' évolution des ondes de pression dans les r éseaux de conduites.
- Author
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Gargouiri, Jawhar, Hadj-Taieb, Ezzeddine, and Thirriot, Claude
- Subjects
- *
PRESSURE , *PIPE , *VISCOELASTIC materials , *COMPUTER software , *DAMPING (Mechanics) , *VISCOELASTICITY - Abstract
In this paper, the possibility of reducing pressure surges in a quasi-rigid pipe network by replacing one of the pipes of the network by a viscoelastic one is examined. The mathematical model consists of a system of two hyperbolic, partial differential equations which are resolved by the method of characteristics using linear interpolation. The calculation at the network junctions is realised by resolving a linear system of equations including the manner various boundary conditions are introduced into the solution. The behaviour law of the viscoelastic pipe is described by the Kelvin-Voigt model. In order to simplify calculations, only the elastic element of this model is considered. For the applications, a constructed computer progrmn written in FORTRAN language is elaborated. The numerical results show the effect of the pipe wall elasticity on the damping of the pressure waves in the networks. [ABSTRACT FROM AUTHOR]
- Published
- 2008
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