Transient fluid–structure interaction algorithms for large industrial applications

Casadei, Folco; Halleux, J.P.; Sala, A.; Chillé, F.

doi:10.1016/s0045-7825(00)00383-2

Cited by 53 publications

(27 citation statements)

References 6 publications

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“…2a and b, developed and validated over the last decades by application to industrial problems (Casadei et al [ [18][19][20]). However, the simulation of terrorist attacks up to possible complete failure and fragmentation of some structural components introduces a new challenge, for which a new dedicated FSI model has been developed along the following lines (see Casadei [21]).…”

Section: Fluid-structure Interactionmentioning

confidence: 99%

Risk assessment of the fatality due to explosion in land mass transport infrastructure by fast transient dynamic analysis

Giannopoulos

Larcher

Casadei

et al. 2010

Journal of Hazardous Materials

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Section: Fluid-structure Interactionmentioning

confidence: 99%

Risk assessment of the fatality due to explosion in land mass transport infrastructure by fast transient dynamic analysis

Giannopoulos

Larcher

Casadei

et al. 2010

Journal of Hazardous Materials

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“…We assume for simplicity a Lagrangian description, suitable for the treatment of purely structural applications. The interested reader may find further details in References [10,11].…”

Section: Explicit Time Integrationmentioning

confidence: 99%

Binary spatial partitioning of the central‐difference time integration scheme for explicit fast transient dynamics

Casadei

Halleux

2008

Numerical Meth Engineering

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SUMMARYThis paper proposes a generalization of the explicit central-difference time integration scheme, using a time step variable not only in time but also in space. The solution at each element/node is advanced in time following local rather than global stability limitations. This allows substantial saving of computer time in realistic applications with non-uniform meshes, especially in multi-field problems like fluid-structure interactions. A binary scheme in space is used: time steps are not completely arbitrary, but stay in a constant ratio of two when passing from one partition level to the next one. This choice greatly facilitates implementation (via an integer-based logic), ensures inherent synchronization and avoids any interpolations, necessary in other partitioning schemes in the literature, but which may reduce numerical stability. The mesh partition is automatically built up and continuously updated by simple spatial adjacency considerations. The resulting algorithm deals automatically with large variations in time of stability limits. The paper introduces the core spatial partitioning technique in the Lagrangian formulation. Some academic numerical examples allow a detailed comparison with the standard, spatially uniform algorithm. A final more realistic example shows the application of partitioning in simulations with arbitrary Lagrangian Eulerian formulation and fully-coupled boundary conditions (fluid-structure interaction).

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“…In this way, a numerical 1D model based on the method of characteristic (MOC) is used and compared with experimental tests taken in a laboratory network. However, the behavior of various components in these complex systems is typically highly nonlinear, in the geometry, due to large motions and deformations, and in the material rheological behavior laws and pipe support displacements [4]. Studying the behavior of the fluid and the structure, as a whole, enables the response of the structure change by the flow modification and, consequently, on return, the response of the fluid by structure vibration [5].…”

Section: Introductionmentioning

confidence: 99%

Mechanical Interaction in Pressurized Pipe Systems: Experiments and Numerical Models

Simão

Rodríguez

Ramos

2015

Water

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Abstract:The dynamic interaction between the unsteady flow occurrence and the resulting vibration of the pipe are analyzed based on experiments and numerical models. Waterhammer, structural dynamic and fluid-structure interaction (FSI) are the main subjects dealt with in this study. Firstly, a 1D model is developed based on the method of characteristics (MOC) using specific damping coefficients for initial components associated with rheological pipe material behavior, structural and fluid deformation, and type of anchored structural supports. Secondly a 3D coupled complex model based on Computational Fluid Dynamics (CFD), using a Finite Element Method (FEM), is also applied to predict and distinguish the FSI events. Herein, a specific hydrodynamic model of viscosity to replicate the operation of a valve was also developed to minimize the number of mesh elements and the complexity of the system. The importance of integrated analysis of fluid-structure interaction, especially in non-rigidity anchored pipe systems, is equally emphasized. The developed models are validated through experimental tests. OPEN ACCESSWater 2015, 7 6322 Keywords: fluid structure interaction (FSI); method of characteristics (MOC); computational fluid dynamic (CFD); waterhammer; finite element method (FEM)

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Transient fluid–structure interaction algorithms for large industrial applications

Cited by 53 publications

References 6 publications

Risk assessment of the fatality due to explosion in land mass transport infrastructure by fast transient dynamic analysis

Risk assessment of the fatality due to explosion in land mass transport infrastructure by fast transient dynamic analysis

Binary spatial partitioning of the central‐difference time integration scheme for explicit fast transient dynamics

Mechanical Interaction in Pressurized Pipe Systems: Experiments and Numerical Models

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