Modele numerique de couplage fluide-structure avec application aux moteurs fusee

Authors

  • Emmanuel Lefran~ois LMFN CORIA UMR 6614 and LMR UPRESA 6104 JNSA- avenue de l'Universite BP 08. F-76801 St Etienne du Rouvray cedex
  • Gouri Dhatt LMR UPRESA 6104 JNSA- avenue de l'Universite BP 08. F-76801 St Etienne du Rouvray cedex
  • Dany Vandromme LMFN CORIA UMR 6614

Keywords:

aeroelasticity, fluid-structural interaction, finite elements, geometricalnonlinearities, shells, shock capturing, parallel calculation, rocket engines

Abstract

A finite element model is presented for studying fluid-structural interaction phenomena e. Domains are assumed axisymmetrical with flexible boundaries that may undergo large displacements. Newmark scheme is used for temporal discretization of structure part. Fluid is supposed compressible, inviscid and perfect. Numerical scheme for fluid is based on a LaxWendro. ff scheme taking into account moving mesh in order to respect parietal compatibilities. A schock capturing technique is added in order to maintain positivity scheme in high gradielll zones. After discussing considerations on a Geometrical Conservation Law, coupling is obtained in establishing a "dialogue" between both codes in using parallel tools to update common variables between fluid and structure. Two calculations are conducted on aeroelasticity with application to rocket engines.

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Published

1999-02-24

How to Cite

Lefran~ois, E. ., Dhatt, G. ., & Vandromme, D. . (1999). Modele numerique de couplage fluide-structure avec application aux moteurs fusee. European Journal of Computational Mechanics, 8(2), 159–199. Retrieved from https://journals.riverpublishers.com/index.php/EJCM/article/view/3029

Issue

1999: Vol 8 Iss 2

Section

Original Article