2017
DOI: 10.1002/fld.4379
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An immersed smoothed point interpolation method (IS‐PIM) for fluid‐structure interaction problems

Abstract: Summary An immersed smoothed point interpolation method using 3‐node triangular background cells is proposed to solve 2D fluid‐structure interaction problems for solids with large deformation/displacement placed in incompressible viscous fluid. In the framework of immersed‐type method, the governing equations can be decomposed into 3 parts on the basis of the fictitious fluid assumption. The incompressible Navier‐Stokes equations are solved using the semi‐implicit characteristic‐based split scheme, and solids … Show more

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Cited by 20 publications
(4 citation statements)
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References 61 publications
(113 reference statements)
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“…In this example, a steady problem is considered about a flexible beam fixed in the fluid tunnel, which was simulated previously using the IS‐FEM and the immersed smoothed point interpolation method (IS‐PIM) . The viscous fluid flows across the beam and leads to a large deformation because of the fluid force.…”
Section: Numerical Examplesmentioning
confidence: 99%
“…In this example, a steady problem is considered about a flexible beam fixed in the fluid tunnel, which was simulated previously using the IS‐FEM and the immersed smoothed point interpolation method (IS‐PIM) . The viscous fluid flows across the beam and leads to a large deformation because of the fluid force.…”
Section: Numerical Examplesmentioning
confidence: 99%
“…On the other hand, deformation with respect to the initial shape, in the context of a Lagrangian framework, is preferred in solid mechanics. Therefore, different FSI solvers have been developed that are described as Lagrangian-Eulerian, [6][7][8][9] Lagrangian-ALE, 10,11 full Eulerian, [12][13][14][15][16] and full Lagrangian. [17][18][19] Using a unified coordinate framework for the entire solution domain makes it easier to describe fluid and solid domains as a single continuum with identical dependent variables.…”
Section: Introductionmentioning
confidence: 99%
“…The present coupling procedure is conceptually similar to the IBM (Pepona and Favier, 2016;Griffith and Patankar, 2020;Wang et al, 2017) for moving structures, but it employs a different way to convert the fluid pressure into a structural load. This is because the conventional IBM for impermeable solid cannot be used for the highly permeable nets.…”
Section: Comments On the Previous Coupling Algorithmmentioning
confidence: 99%
“…The interaction between the fluid and structure is usually accomplished by distributing nodal forces and interpolating nodal velocities between the Eulerian and Lagrangian domains using the Dirac delta function (Wang and Zhang, 2009). Because flexible nets can experience large deformations in the three-dimensional domain, a class of non-boundaryfitted methods is usually chosen to track the moving boundaries (Wang et al, 2017). In this method, the fluid and solid domains are discretized separately using a fixed Eulerian grid and a moving Lagrangian grid, respectively.…”
Section: Introduction To the Fluid-structure Interaction Problem In M...mentioning
confidence: 99%