A review of numerical fluids/structures interface methods for computations using high-fidelity equations

Guruswamy, Guru P.

doi:10.1016/s0045-7949(01)00164-x

Cited by 50 publications

(20 citation statements)

References 25 publications

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“…This motivates the implementation of interpolation between non-matching discretizations. It should be noted that the interpolation of fields on the non-matching interface may compromise the accuracy of the whole simulation [46], and several authors have addressed the problem of coupling two non-matching discretizations [1,[46][47][48][49][50][51]. The general criteria for choosing the appropriate interpolator relates to its efficiency, robustness, accuracy, and conservation of momentum and energy [1,46,49,52].…”

Section: Spatial Couplingmentioning

confidence: 99%

Assessment of the Fluid-Structure Interaction Capabilities for Aeronautical Applications of the Open-Source Solver Su2.

Sánchez¹,

Kline²,

Thomas³

et al. 2016

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

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Abstract. We report on an international effort to develop an open-source computational environment for high-fidelity fluid-structure interaction analysis. In particular, we will focus on verification of the implementation for application in computational aeroelasticity. The capabilities of the SU2 code for aeroelastic analysis have been further enhanced both by developing natively embedded tools for the study of largely deformable solids, and by wrapping it using Python tools for an improved communication with external solvers. Both capabilities will be demonstrated on relevant test cases, including rigid-airfoil solutions with indicial functions, the Isogai Wing Section, test cases from the AIAA 2nd Aeroelastic Prediction Workshop, and the vortex-induced vibrations of a flexible cantilever in the wake of a square cylinder. Results show very good performance both in terms of accuracy and computational efficiency. The modularity and versatility of the baseline suite allows for a flexible framework for multidisciplinary computational analysis. The software libraries have been freely shared with the community to encourage further engagement in the improvement, validation and further development of this open-source project.

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Section: Spatial Couplingmentioning

confidence: 99%

Assessment of the Fluid-Structure Interaction Capabilities for Aeronautical Applications of the Open-Source Solver Su2.

Sánchez¹,

Kline²,

Thomas³

et al. 2016

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

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“…There is a substantial body of literature to address the problem of coupling two non-matching meshes. 1,13,[43][44][45][46][47] Indeed, the interpolation of fields on the interface may compromise the accuracy of the whole simulation if it is not done appropriately. 44 In general, the information transfer between solvers has to meet strict criteria regarding conservativeness of momentum and energy; at the same time it has to aim at obtaining an efficient solution from the numerical point of view.…”

Section: Iie Space Couplingmentioning

confidence: 99%

“…8,9 Each particular problem has its own requirements in terms of the physics involved, and as a result several methods have arisen specifically oriented to solve them. [10][11][12][13][14][15][16][17][18][19] Given the complex physics involved in the solution of computational FSI, where strong non-linearities may occur both in each domain separately and in the interaction itself, the performance of the solvers employed in highly parallel environments becomes a key issue, specially when addressing large problems. Therefore, both accuracy and efficiency in the solvers become unavoidable requirements for the computational study of this problem.…”

Section: Introductionmentioning

confidence: 99%

“…As a result, they propose to enforce conservativeness conditions into an intermediate, sometimes called virtual surface, a concept which has also been addressed by many other authors. 13,14,54 Another extended family of methods are the Radial Basis Functions (RBF). Radial basis functions have been very successful in various Fluid-Structure Interaction applications, 44, 48 also obtaining accurate results in the review carried out by de Boer et al 45 The method is well described by Beckert and Wendland, 48 and is based on the definition of an interpolation function as…”

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confidence: 99%

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Towards a Fluid-Structure Interaction Solver for Problems with Large Deformations Within the Open-Source SU2 Suite

Sánchez

Palacios

Economon

et al. 2016

57th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference

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This paper describes a new framework for Fluid-Structure Interaction (FSI) modelling within the open-source code SU2. SU2 has been developed to solve complex, multi-physics problems described by Partial Differential Equations (PDEs), with an emphasis on problems involving aerodynamic shape optimization. Due to its modularity, the code provides an appropriate infrastructure for the solution of physical problems in several disciplines. This work provides SU2 with new tools that expand its capabilities in the fields of structural analysis and FSI. The focus will be on geometrically-nonlinear deformable solids in low-speed external flows.A Finite Element (FE) structural solver, able to deal with geometrical and material non-linearities in a static and a dynamic setting, has been built within the framework of SU2 alongside the existing solvers. Following the original object-oriented architecture in C++, a new structure compliant with the CFD solver has been developed. These new features will serve as a basis for future developments of FE-based strategies for the solution of PDEs. The structural solver has been coupled with the original fluid solver in SU2 using a partitioned approach. The structure of the code was fully recast to allow analysis across multiple zones and physical problems, currently limited to problems involving fluid and structural analysis. Both loosely-and strongly-coupled strategies are available for the solution of the coupled FSI problem.Finally, the validity of the implementations is assessed by studying the behavior of a rigid square with a flexible cantilever at low Reynolds number. The results obtained demonstrate the capabilities of these new developments and further address the physics behind this benchmark problem. * Graduate Student, Department of Aeronautics, 363A Roderic Hill Building; r.sanchez-fernandez14@imperial.ac.uk. AIAA Student Member.

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“…The literature is huge, therefore no attempt is made here to review it. Some general, yet worth examples are reported in [1][2][3][4]. Among so many applications, the propagation and impact of steep sea waves on coastal structures [5][6][7] or the run-up and overtopping on defense structures [8,9] have probably been studied in more detail starting from the pioneering work of by Kirkgöz [6], therefore they can provide some deeper insight.…”

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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A review of numerical fluids/structures interface methods for computations using high-fidelity equations

Cited by 50 publications

References 25 publications

Assessment of the Fluid-Structure Interaction Capabilities for Aeronautical Applications of the Open-Source Solver Su2.

Assessment of the Fluid-Structure Interaction Capabilities for Aeronautical Applications of the Open-Source Solver Su2.

Towards a Fluid-Structure Interaction Solver for Problems with Large Deformations Within the Open-Source SU2 Suite

A Numerical Investigation of Liquid Impact on Planar Surfaces.

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