Fluid-structure coupling within a monolithic model involving free surface flows

Walhorn, E.; Hübner, Björn; Kölke, Andreas Andreas; Dinkler, Dieter

doi:10.1016/b978-008044046-0.50381-x

Cited by 23 publications

(28 citation statements)

References 7 publications

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“…Moreover, we are able to catch the main impact with a good accuracy with both the coarse and the fine mesh. Our results are in accordance with the one obtained using a monolithic stabilized-FEM strategy described in [76]. In [3], a tight coupling strategy between a FV and a FEM solver is used, that probably explained the differences observed.…”

Section: Two-dimensional Sloshing Wave Hitting a Flexible Structuresupporting

confidence: 81%

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Partitioned solution to fluid–structure interaction problem in application to free-surface flows

Kassiotis

Ibrahimbegović

Matthies

2010

European Journal of Mechanics - B/Fluids

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In this work we discuss a way to compute the impact of free-surface flow on nonlinear structures. The approach chosen rely on a partitioned strategy that allows to solve strongly coupled fluid-structure interaction problem. It is then possible to re-use existing and validated strategy for each sub-problem. The structure is formulated in a Lagrangian way and solved by the finite element method. The free-surface flow approach considers a Volume-Of-Fluid (VOF) strategy formulated in an Arbitrary Lagrangian-Eulerian (ALE) framework, and the finite volume are used to discrete and solve this problem. The software coupling is ensured in an efficient way using the Communication Template Library (CTL). Numerical examples presented herein concern 2D validations case but also 3D problems with a large number of equations to be solved.

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Section: Two-dimensional Sloshing Wave Hitting a Flexible Structuresupporting

confidence: 81%

“…Furthermore, the material properties of the obstacle are modified in order to obtain a flexible elastic structure. This problem was studied experimentally and numerically [76,3]. 292 146 140 12 286 80 73…”

Section: Two-dimensional Sloshing Wave Hitting a Flexible Structurementioning

confidence: 99%

Partitioned solution to fluid–structure interaction problem in application to free-surface flows

Kassiotis

Ibrahimbegović

Matthies

2010

European Journal of Mechanics - B/Fluids

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“…Also the impact of structures on a liquid surface and other interactions between multi-phase flow and flexible structures have been analyzed extensively [2,101,102,113,155,194,197]. Applications of that research are the design of floating wave energy converters [186] and composite ship hulls [148,187].…”

Section: Introductionmentioning

confidence: 99%

Partitioned Simulation of Fluid-Structure Interaction

Degroote¹

2013

Arch Computat Methods Eng

124

107

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In this review article, the focus is on partitioned simulation techniques for strongly coupled fluid-structure interaction problems, especially on techniques which use at least one of the solvers as a black box. First, a number of analyses are reviewed to explain why Gauss-Seidel coupling iterations converge slowly or not at all for fluid-structure interaction problems with strong coupling. This provides the theoretical basis for the fast convergence of quasi-Newton and multi-level techniques. Second, several partitioned techniques that couple two black-box solvers are compared with respect to implementation and performance. Furthermore, performance comparisons between partitioned and monolithic techniques are examined. Subsequently, two similar techniques to couple a black-box solver with an accessible solver are analyzed. In addition, several other techniques for fluid-structure interaction simulations are studied and various methods to take into account deforming fluid domains are discussed.

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“…4 is chosen to discretize the fluid, structural and the piezoelectric weak forms spatially. Several works [25,20,24,21] detail the application of the space-time finite element method for fluid-structure interaction. Since the electric charges are collected only on the surface of the electrodes, a four node quadrilateral element as shown in Fig.…”

Section: Elements and Space-time Interpolationmentioning

confidence: 99%

Numerical Modeling of Flow-Driven Piezoelectric Energy Harvesting Devices

Ravi

Zilian

2016

Computational Methods in Applied Sciences

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The present work proposes uniform and simultaneous computational analysis of smart, low power energy harvesting devices targeting flow-induced vibrations in order to enable reliable sensitivity, robustness and efficiency studies of the associated nonlinear system involving fluid, structure, piezo-ceramics and electric circuit. The article introduces a monolithic approach that provides simultaneous modeling and analysis of the coupled energy harvester, which involves surfacecoupled fluid-structure interaction, volume-coupled piezoelectric mechanics and a controlling energy harvesting circuit for applications in energy harvesting. A spacetime finite element approximation is used for the numerical solution of the governing equations of the flow-driven piezoelectric energy harvesting device. This method enables modeling of different types of structures (plate, shells) with varying cross sections and material compositions, and different types of simple and advanced harvesting circuits.

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Fluid-structure coupling within a monolithic model involving free surface flows

Cited by 23 publications

References 7 publications

Partitioned solution to fluid–structure interaction problem in application to free-surface flows

Partitioned solution to fluid–structure interaction problem in application to free-surface flows

Partitioned Simulation of Fluid-Structure Interaction

Numerical Modeling of Flow-Driven Piezoelectric Energy Harvesting Devices

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