ALE formulation for fluid–structure interaction problems

Souli, M’hamed; Ouahsine, Abdellatif; Lewin, L.

doi:10.1016/s0045-7825(99)00432-6

Cited by 296 publications

(135 citation statements)

References 17 publications

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“…The ALE approach is based on the arbitrary movement of a reference domain which, additionally to the common material domain and spatial domain, is introduced as a third domain [39]. The problem is formulated in this reference domain, which later will correspond to the finite element mesh.…”

Section: General Description Of the Ale Techniquementioning

confidence: 99%

Numerical modelling of partially filled aircraft fuel tanks submitted to Hydrodynamic Ram

Varas

Zaera

López-Puente

2012

Aerospace Science and Technology

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a b s t r a c t Keywords:Hydrodynamic Ram Fluid-structure interaction Aircraft vulnerability Impact Fuel tank Hydrodynamic Ram (HRAM) is a phenomenon that occurs when a high-kinetic energy object penetrates a fluid-filled container. The projectile transfers its momentum and kinetic energy through the fluid to the surrounding structure, increasing the risk of catastrophic failure and excessive structural damage. This is of particular concern in the design of wing fuel tanks for aircraft since it has been identified as one of the important factors in aircraft vulnerability. Usually the HRAM phenomenon is analyzed considering completely filled tanks, but its effect on partially filled containers should also be taken into account due to the fact that tanks use to be impacted under these conditions. In the present paper, the commercial finite element code LS-DYNA has been used to simulate an HRAM event created by a steel spherical projectile impacting a partially water-filled aluminium square tube. The ALE formulation is employed to reproduce the event. Experimental tests which indicate the pressure at different points of the fluid, displacement of the walls and cavity evolution for different impact velocities, are compared with the numerical results in order to assess the validity and accuracy of the ALE technique in reproducing such a complex phenomenon.

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Section: General Description Of the Ale Techniquementioning

confidence: 99%

Numerical modelling of partially filled aircraft fuel tanks submitted to Hydrodynamic Ram

Varas

Zaera

López-Puente

2012

Aerospace Science and Technology

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“…As an example, the equation for mass conservation is: (26) It is not the goal of this paper to describe the different algorithms used to solve Eqn. (26), these algorithms have already been described in detail by Benson [19] and Souli et al [21]. We will focus on the 'staggered' mesh used for the momentum advection, described by Benson [19].…”

Section: Advectionmentioning

confidence: 99%

Transient Response of a Projectile in Gun Launch Simulation Using Lagrangian and Ale Methods

Tabiei¹,

Chowdhury²,

Aquelet³

et al. 2010

The International Journal of Multiphysics

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“…Lagrangian [21], Eulerian [22] or mixed [23] numerical methods have been extensively developed and applied as well. In [24] the impact process resulting from the interaction of breaking waves with a vertical wall was numerically solved by means of a Finite Difference (FD) scheme, based on the Volume of Fluid (VOF) method [25].…”

Section: Introductionmentioning

confidence: 99%

A Numerical Investigation of Liquid Impact on Planar Surfaces.

Viccione¹,

Bovolin²,

Carratelli³

2016

Proceedings of the VII European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS Congress 2016)

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Abstract. The impact of a free surface liquid flow on planar surfaces is a common occurrence and a challenging issue in many research fields. There are many situations in science and technology where this field of study finds related applications: the falling objects on a liquid surface, sloshing dynamics, flow run-up and overtopping, the action of train waves on maritime structures. Under certain circumstances, the impact process may result into high, spatially localized pressure peaks, thus inducing dangerous solicitations. The present work focuses on some relevant computational aspects of the fluid impact on inclined planar surfaces, making use of the Weakly Compressible Smoothed Particle Hydrodynamics (WCSPH) Lagrangian technique. With reference to the early stages of the impact process, pressure distribution is described as function of the incident wave's features and the angle of incidence of the solid surface assumed. Results are then discussed and compared with the corresponding ones obtained via Eulerian software.

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ALE formulation for fluid–structure interaction problems

Cited by 296 publications

References 17 publications

Numerical modelling of partially filled aircraft fuel tanks submitted to Hydrodynamic Ram

Numerical modelling of partially filled aircraft fuel tanks submitted to Hydrodynamic Ram

Transient Response of a Projectile in Gun Launch Simulation Using Lagrangian and Ale Methods

A Numerical Investigation of Liquid Impact on Planar Surfaces.

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