The ortho-semi-torsional (OST) spring analogy method for 3D mesh moving boundary problems

Markou, George; Mouroutis, Zacharias S.; Charmpis, Dimos C.; Papadrakakis, Manolis

doi:10.1016/j.cma.2006.04.009

Cited by 64 publications

(29 citation statements)

References 12 publications

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“…In this paper, MSA works in conjunction with the semi-torsional or ortho-semi-torsional spring analogy methods (SAMs) (Zeng and Ethier 2005;Markou et al 2007). The resulting quasi-static equilibrium equations are settled by the successive over-relaxation technique proposed by Zeng and Ethier (2005).…”

Section: Mesh Update Methodsmentioning

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: Mesh Update Methodsmentioning

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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“…To accommodate the ALE mesh movement, moving submesh approach (MSA) (Lefrançois, 2008) is adopted in conjunction with the ortho-semi-torsional spring analogy method (Markou et al, 2007) here. The basic idea of MSA lies in putting a layer of very coarse submesh over the fine fluid mesh.…”

Section: Mesh Update Strategymentioning

confidence: 99%

Combined interface boundary condition method for fluid–structure interaction: Some improvements and extensions

Zhang

2015

Ocean Engineering

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“…Mesh deformation methods have received much attention in recent years, for they avoid mesh regeneration which is computational burdensome and introduces interpolation errors. The methods for mesh deformation can be generally sorted into partial differential equation (PDE) methods [1,2], physical analogy techniques [3,4], algebraic methods [6][7][8][9][10][11][12] and their combinations [5]. Algebraic methods are generally more efficient than the others, and become prevailing recently.…”

Section: Introductionmentioning

confidence: 99%

A novel three-dimensional mesh deformation method based on sphere relaxation

Zhou

2015

Journal of Computational Physics

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The ortho-semi-torsional (OST) spring analogy method for 3D mesh moving boundary problems

Cited by 64 publications

References 12 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

Combined interface boundary condition method for fluid–structure interaction: Some improvements and extensions

A novel three-dimensional mesh deformation method based on sphere relaxation

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