A numerical framework for simulatingfluid-structure interaction phenomena
Journal Title: Frattura ed Integrità Strutturale - Year 2014, Vol 8, Issue 29
Abstract
In this paper, a numerical tool able to solve fluid-structure interaction problems is proposed. Thelattice Boltzmann method is used to compute fluid dynamics, while the corotational finite element formulationtogether with the Time Discontinuous Galerkin method are adopted to predict structure dynamics. TheImmersed Boundary method is used to account for the presence of an immersed solid in the lattice fluidbackground and to handle fluid-structure interface conditions, while a Volume-of-Fluid-based method isadopted to take trace of the evolution of the free surface. These ingredients are combined through a partitionedstaggered explicit strategy, according to an efficient and accurate algorithm recently developed by the authors.The effectiveness of the proposed methodology is tested against two different cases. The former investigatesthe dam break phenomenon, involving the modeling of the free surface. The latter involves the vibration regimeexperienced by two highly deformable flapping flags obstructing a flow. A wide numerical campaign is carriedout by computing the error in terms of interface energy artificially introduced at the fluid-solid interface.Moreover, the structure behavior is dissected by simulating scenarios characterized by different values of theReynolds number. Present findings are compared to literature results, showing a very close agreement.
Authors and Affiliations
A. De Rosis, S. De Miranda, C. Burrafato, F. Ubertini
Keywords
Related Articles
- EP ID EP131746
- DOI 10.3221/IGF-ESIS.29.30
- Views 82
- Downloads 0
High temperature fatigue tests and crack growth in 40CrMoV13.9 notched components
The present paper addresses experimentally the high temperature fatigue of 40CrMoV13.9 steel and the effect of surface roughness on fatigue strength and crack initiation. The 40CrMoV13.9 steel is widely used in d...
Crack path simulation for cylindrical contact under fretting conditions
In this work different strategies to estimate crack path for cylindrical contacts under fretting conditions are carried out. The main goal is to propose and to evaluate methodologies not only to estimate the ...
Influence of crack offset distance on the interaction of multiple cracks on the same side in a rectangular plate
In the present work finite element method has been employed to study the interaction of multiple cracks in a finite rectangular plate of unit thickness with cracks on the same side under uniaxial loading condition...
Critical plane approach to multiaxial variable amplitude fatigue loading
A new critical plane approach based on the modified Manson-Coffin curve method (MMCCM) is presented in this paper for predicting fatigue lifetime under variable amplitude (VA) multiaxial fatigue loading. The crit...
L’importanza del “parametro energetico” temperatura per la caratterizzazione dinamica dei materiali
Le esperienze maturate nel campo dell’analisi termica di materiali utilizzati nelle costruzioni meccaniche [1,2,3] hanno permesso di evidenziare come il rilievo della temperatura (terzo parametro) in prove statiche e din...