We present a numerical code for fluid–structure interactions to solve the problem of waterhammer in pipes with thin walls. The pipe is modeled by planar beams theory of Bernoulli–Euler in longitudinal and transverse vibrations. This code is the coupling of the finite element method combined with the Newmark algorithm for movement of the pipe wall, and, for the fluid, the method of characteristics. Unlike the classical theory, this code illustrates the side effects of fluid–structure interaction affecting parameters of waterhammer in elastic and viscoelastic pipe.
On présente un code numérique dʼinteractions fluide–structure pour résoudre le problème de coup de bélier en conduites à paroi mince. La conduite est modélisée par la théorie des poutres planes de Bernoulli–Euler en vibrations longitudinale et transversale. Ce code est le couplage de la méthode des éléments finis associée à lʼalgorithme de Newmark pour le mouvement de la paroi de la conduite et, pour le fluide, à la méthode des caractéristiques. Contrairement à la théorie classique, ce code permet dʼillustrer les effets secondaires dʼinteraction fluide–structure affectant les paramètres de coup de bélier dans les cas de conduite élastique et viscoélastique.
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Keywords: Mécanique des fluides numérique, Coup de bélier, Fluides–structures, Méthodes des caractéristiques, Éléments finis
El Hassan Achouyab 1; Bennasser Bahrar 2
@article{CRMECA_2011__339_4_262_0,
author = {El Hassan Achouyab and Bennasser Bahrar},
title = {Numerical modeling of phenomena of waterhammer using a model of fluid{\textendash}structure interaction},
journal = {Comptes Rendus. M\'ecanique},
pages = {262--269},
publisher = {Elsevier},
volume = {339},
number = {4},
year = {2011},
doi = {10.1016/j.crme.2011.02.003},
language = {en},
}
TY - JOUR AU - El Hassan Achouyab AU - Bennasser Bahrar TI - Numerical modeling of phenomena of waterhammer using a model of fluid–structure interaction JO - Comptes Rendus. Mécanique PY - 2011 SP - 262 EP - 269 VL - 339 IS - 4 PB - Elsevier DO - 10.1016/j.crme.2011.02.003 LA - en ID - CRMECA_2011__339_4_262_0 ER -
El Hassan Achouyab; Bennasser Bahrar. Numerical modeling of phenomena of waterhammer using a model of fluid–structure interaction. Comptes Rendus. Mécanique, Volume 339 (2011) no. 4, pp. 262-269. doi : 10.1016/j.crme.2011.02.003. https://comptes-rendus.academie-sciences.fr/mecanique/articles/10.1016/j.crme.2011.02.003/
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