Application of a coupled Eulerian–Lagrangian method to simulate interactions between deformable composite structures and compressible multiphase flow

Xie, Wenfeng; Liu, Zhanke; Young, Yin Lu

doi:10.1002/nme.2667

Cited by 16 publications

(8 citation statements)

References 44 publications

(24 reference statements)

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“…This has led to the development of several approaches involving in the same time the Lagrangian and Eulerian descriptions. The Coupled Eulerian Lagrangian (CEL) [38,73,113] and the Arbitrary Lagrangian Eulerian (ALE) [19,99] can particularly be cited. The CEL approach consists in employing simultaneously both the descriptions in separate (or with overlap) regions of the problem domain.…”

Section: Grid-based Methodsmentioning

confidence: 99%

Multiscale Modeling of Complex Dynamic Problems: An Overview and Recent Developments

Jebahi

Dau

Charles

et al. 2014

Arch Computat Methods Eng

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International audienceMultiscale modeling aims to solve problems at the engineering (macro) scale while considering the complexity of the microstructure with minimum cost. Generally, two scales are considered in multiscale modeling: small scale, which is designed to capture the mechanical phenomena at the atomistic, molecular or molecular cluster level, and large scale which is connected to continuous description. For each scale, well-established numerical methods have been developed over the years to handle the relevant phenomena. As a first part of this paper, the most popular numerical methods, used at different scales, as well as the coupling approaches between them are classified, according to their features and applications, so that the place of those used in multiscale modeling can be distinguished. Subsequently, the class of concurrent discrete–continuum coupling approaches, which is well adapted for dynamic studies of complex multiscale problems, is reviewed. Several techniques used in this class are also detailed. Among them, the bridging domain (BD) technique is used to develop a discrete–continuum coupling approach, adapted for dynamic simulations, between the Discrete Element Method and the Constrained Natural Element Method (CNEM). This approach is applied to study the BD coupling parameters in dynamics. Several results giving more light on the setting of these parameters in practice are obtained

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Section: Grid-based Methodsmentioning

confidence: 99%

Multiscale Modeling of Complex Dynamic Problems: An Overview and Recent Developments

Jebahi

Dau

Charles

et al. 2014

Arch Computat Methods Eng

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“…For a solid structure which ignore the structural damping effects, the governing equation of motion can be written in matrix form as follows [25]:…”

Section: Lagrangian Solid Equationsmentioning

confidence: 99%

Numerical Investigation of the Dynamic Responses of Composite Material Subjected to Bubble Collapse

Ma¹,

Huang²,

Wang³

2017

Computational and Experimental Methods in Multiphase and Complex Flow IX

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The presence of composite materials is an alternative solution to effectively overcome the troubles caused by the occurrence of bubble collapse in the marine propulsion systems, such as noise, vibration, pressure pulsations, and heavy erosion. The objective of this paper is to apply computational method to investigate the deformation of composite material with clamped ends subjected to the pressure loads caused by a 2D single bubble with a non-spherical collapse. The Euler-Lagrangian numerical method is supposed to simulate the bubble shape evolution, the transient pressure loads, and the dynamic response between fiber layers. With emphasis on numerical method, the CLSVOF method is used to track the air-liquid interface and the Ghost Fluid method is adopted to simulate the incompressible flow. The numerical results reveal that the substantial increase in pressure fluctuations on the composite material boundary are caused by the bubble evolution process near the wall, involving the motion of bubble rising to the boundary, the formation of the re-entrant jet, and the splitting of the daughter bubble. The impact pressure load significantly contributes to the deformation of the composite material. Furthermore, the effect of standoff distance between the bubble and wall on the dynamic responses among the fiber layers of composite material boundary is preliminarily discussed.

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“…In the standard GFM the ghost points for the first fluid are given the velocity and pressure of the second fluid while their entropy are the same as the first fluid [4]. Xie [13,14] developed MGFM for modeling fluid-structure interaction problems. Therefore, the isobaric fix technique [5] was introduced to reduce the overheating problem of GFM in which the entropy of the real point close to the interface is set from the inside of the domain without changing its dynamical states (velocity and pressure).…”

mentioning

confidence: 99%

“…The MGFM has been widely used in several problems successfully [10][11][12]. Xie [13,14] developed MGFM for modeling fluid-structure interaction problems. Also, it was modified to include nearly cavitating flows [15].…”

mentioning

confidence: 99%

A CWENO ghost fluid method for compressible multimaterial flow

Lahooti

Pishevar

2013

Numerical Methods in Fluids

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SUMMARYIn this work a new ghost fluid method (GFM) is introduced for multimaterial compressible flow with arbitrary equation of states. In previous researches, it has been shown that accurate wave decomposition at the interface by solving a Riemann problem alleviates the shortcomings of the standard GFM in dealing with the impingement of strong waves onto the interface but these Riemann‐based GFM are not consistent with the framework of the central WENO scheme in which the emphasis is to avoid solving Riemann problems at control volume faces and enjoy the black box property (being independent of equation of state). The aim of this work is to develop a new GFM that is completely consistent with the methodology behind central schemes; that is, it enjoys a black box property. The capabilities of the proposed GFM method is shown by solving various types of multimaterial compressible flows including gas–gas, gas–water and fluid–solid interfaces interacting with strong shock waves in one and two space dimensions. Copyright © 2013 John Wiley & Sons, Ltd.

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Application of a coupled Eulerian–Lagrangian method to simulate interactions between deformable composite structures and compressible multiphase flow

Cited by 16 publications

References 44 publications

Multiscale Modeling of Complex Dynamic Problems: An Overview and Recent Developments

Multiscale Modeling of Complex Dynamic Problems: An Overview and Recent Developments

Numerical Investigation of the Dynamic Responses of Composite Material Subjected to Bubble Collapse

A CWENO ghost fluid method for compressible multimaterial flow

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