Analysis of some partitioned algorithms for fluid‐structure interaction

Rossi, Riccardo; Oñate, Eugenio

doi:10.1108/02644401011008513

Cited by 24 publications

(13 citation statements)

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“…Thus, we can find numerous endeavours to develop various partitioned subiterative coupling algorithms for aeroelasticity nowadays. The relevant research literatures can refer to Chen and Zha (2005), Ahn and Kallinderis (2006), Dettmer and Perić (2006), Badia and Codina (2007), Yang, Preidikman, and Balaras (2008), Shen, Zha, and Chen (2009) and Rossi and Oñate (2010), to name a few. Among these works, some proposed the novel coupling algorithms while the others adopt the improved or advanced single-field solvers.…”

Section: Introductionmentioning

confidence: 99%

Partitioned subiterative coupling schemes for aeroelasticity using combined interface boundary condition method

Zhou

Han

et al. 2014

International Journal of Computational Fluid Dynamics

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The combined interface boundary condition (CIBC) method has been recently proposed for fluid-structure interaction. The CIBC method employs a Gauss-Seidel-like procedure to transform traditional interface conditions into velocity and traction corrections whose effect is controlled by a dimensional parameter. However, the original CIBC method has to invoke the uncorrected traction when forming the traction correction. This process limits its application to fluid-rigid body interaction. To repair this drawback, a new formulation of the CIBC method has been developed by using a new coupling parameter. The reconstruction is simple and the structural traction is removed completely. Two partitioned subiterative coupling versions of the CIBC method are developed. The first scheme is an implicit strategy while the second one is a semi-implicit strategy. Iterative loops are actualised by the fixed-point algorithm with Aitken accelerator. The obtained results agree with the well-documented data, and some famous flow phenomena have been successfully detected.Keywords: fluid-structure interaction; aeroelasticity; partitioned subiterative coupling scheme; finite element method; combined interface boundary condition method IntroductionIn real life, fluid-structure interaction (FSI) contains the sophisticated principles of mathematics and the abundant essences of physics. Today, FSI has become one of the most challenging topics in computational fluid dynamics and has received a great deal of attention. It is a frequent issue in a rich variety of engineering realms such as civil engineering, ocean engineering, aerospace engineering, mechanical engineering and biomedical engineering. A major paradigm of FSI concerns the aeroelasticity, of which a typical application is the interplay of natural wind with a high-rise building or a suspension bridge in civil engineering. In this case, a catastrophe is likely to occur if failing to consider the FSI effect. The old Tacoma Narrows Bridge in the 1940s is the most well-known example. As a consequence, FSI is a significant consideration for the design of some practical structures.Except for the most simplified cases, FSI is too complicated (i.e. high nonlinearity and uncertainty) to be solved analytically. Instead, it has to be analysed by means of physical or numerical experiments. For numerical researches, FSI comprises three ingredients: computational fluid dynamics, computational structural dynamics and computational mesh dynamics (Wall and Ramm 1998); or, in other words, it is dominated by a three-field nonlinear formulation (Farhat, Lesoinne, and Maman 1995). Of these fields, the scientific

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Section: Introductionmentioning

confidence: 99%

Partitioned subiterative coupling schemes for aeroelasticity using combined interface boundary condition method

Zhou

Han

et al. 2014

International Journal of Computational Fluid Dynamics

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“…A large literature on the field exists, see for example [3,4] or [2,5]. In the ALE approaches the fluid mesh is allowed to deform matching the deformation of the structural domain.…”

Section: Introductionmentioning

confidence: 99%

A monolithic Lagrangian approach for fluid–structure interaction problems

et al. 2010

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Current work presents a monolithic method for the solution of fluid-structure interaction problems involving flexible structures and free-surface flows. The technique presented is based upon the utilization of a Lagrangian description for both the fluid and the structure. A linear displacement-pressure interpolation pair is used for the fluid whereas the structure utilizes a standard displacement-based formulation. A slight fluid compressibility is assumed that allows to relate the mechanical pressure to the local volume variation. The method described features a global pressure condensation which in turn enables the definition of a purely displacement-based linear system of equations. A matrixfree technique is used for the solution of such linear system, leading to an efficient implementation. The result is a robust method which allows dealing with FSI problems involving arbitrary variations in the shape of the fluid domain. The method is completely free of spurious added-mass effects.

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“…Then a very simple explicit coupling procedure can be expressed by a Python script as shown in Table 4. Of course many different alternative coupling schemes exist, see for example [40,77]. Many of them can be implemented without making changes to the single field solvers.…”

Section: Fluid-structure Interactionmentioning

confidence: 98%

An Object-oriented Environment for Developing Finite Element Codes for Multi-disciplinary Applications

Dadvand

Rossi

Oñate

2010

Arch Computat Methods Eng

338

218

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The objective of this work is to describe the design and implementation of a framework for building multidisciplinary finite element programs. The main goals are generality, reusability, extendibility, good performance and memory efficiency. Another objective is preparing the code structure for team development to ensure the easy collaboration of experts in different fields in the development of multi-disciplinary applications.Kratos, the framework described in this work, contains several tools for the easy implementation of finite element applications and also provides a common platform for the natural interaction of different applications. To achieve this, an innovative variable base interface is designed and implemented. This interface is used at different levels of abstraction and showed to be very clear and extendible. A very efficient and flexible data structure and an extensible IO are created to overcome difficulties in dealing with multidisciplinary problems. Several other concepts in existing works are also collected and adapted to coupled problems. The use of an interpreter, of different data layouts and variable number of dofs per node are examples of such approach.In order to minimize the possible conflicts arising in the development, a kernel and application approach is used. The code is structured in layers to reflect the working space of developers with different fields of expertise. Details are given on the approach chosen to increase performance and efficiency.

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Analysis of some partitioned algorithms for fluid‐structure interaction

Cited by 24 publications

References 15 publications

Partitioned subiterative coupling schemes for aeroelasticity using combined interface boundary condition method

Partitioned subiterative coupling schemes for aeroelasticity using combined interface boundary condition method

A monolithic Lagrangian approach for fluid–structure interaction problems

An Object-oriented Environment for Developing Finite Element Codes for Multi-disciplinary Applications

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