Fluid-structure coupling of a turbulent flow and a generic blimp structure at high angle of attack

Kamal El Omari; Mohamed Amara; Bruno Koobus; J.-P Dumas; Alain Dervieux; Eric Schall

Article de revue

Fluid-structure coupling of a turbulent flow and a generic blimp structure at high angle of attack

Kamal El Omari, Mohamed Amara, Bruno Koobus, J.-P Dumas, Alain Dervieux et Eric Schall

Ninth international conference Zaragoza-Pau on applied mathematics and statistics : Jaca (Spain), September 19-21, 2005, pp.369-376

2006

Résumé

Aeroelastic

airship

ALE

finite elements

finite volumes

GCL

LES

MUSCL

turbulence

We present here a numerical study of the aeroelastic behavior of a pressurized flexible airship (blimp) during a flight with an angle of attack of 20. The airship is represented by a 6:1 prolate spheroid generic geometry . The air flow is fully turbulent and is modeled by a LES model. We solve the Navier-Stokes three-dimensional compressible equations in their ALE form. The spatial discretization of these equations is achieved on unstructured tetrahedral meshes by a Finite Volumes/Finite Elements (FV/FE) mixed formulation. This fluid simulation is coupled to a structure solver by a staggered algorithm. We investigate a flexible pressurized hull compared to a non-pressurized one

Indicateurs

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Détails

Titre: Fluid-structure coupling of a turbulent flow and a generic blimp structure at high angle of attack
Créateurs - sans rôle: Kamal El Omari
Mohamed Amara
Bruno Koobus
J.-P Dumas
Alain Dervieux
Eric Schall
Détails de publication: Ninth international conference Zaragoza-Pau on applied mathematics and statistics : Jaca (Spain), September 19-21, 2005, pp.369-376
Éditeur: Universidad de Zaragoza: Seminario Matemático "García de Galdeano"
Identifiants: 99139888009311
Unité académique: Institut Montpelliérain Alexander Grothendieck - IMAG
Langue: English
Type de ressource: Journal article