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Pré-Publication, Document De Travail Année : 2015

A simple integral approach to compute flows in ducts with variable cross-section

Résumé

We introduce in this paper a new approach based on an integral formulation in order to get a relevant approximation of the mean flow patterns in one-dimensional ducts with variable cross-sections. Numerical results are compared with those obtained by using the standard one-dimensional formulation associated with a well-balanced scheme, and also with numerical results provided by a multi-dimensional code. The comparison includes ducts with smooth or discontinuous cross sections. This new formulation is shown to be robust wrt to sudden and high cross-section variations, even when a total obstruction occurs, and to be accurate when compared with the reference solution.
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Dates et versions

hal-01239393 , version 1 (07-12-2015)

Identifiants

  • HAL Id : hal-01239393 , version 1

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Bruno Audebert, Jean-Marc Hérard, Xavier Martin, Ouardia Touazi. A simple integral approach to compute flows in ducts with variable cross-section. 2015. ⟨hal-01239393⟩
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