[01138] Advances in embedded and Eulerian methods for fluid-structure interaction
Session Time & Room : 4C (Aug.24, 13:20-15:00) @E820
Type : Proposal of Minisymposium
Abstract : This mini-symposium brings together young researchers and experts working on numerical modeling of fluid-structure interaction problems. To avoid the remeshing step involved in ALE method, other approaches based on non-body fitted grids have become more and more attractive. One is the embedded approach where a Lagrangian structure solver interacts with an Eulerian fluid solver to enforce appropriate conditions on the immersed interface. Another one is the fully Eulerian approach where both the fluid and the elastic structure are discretized on the same grid. This mini-symposium welcomes contributions to embedded and fully Eulerian numerical modelling for both compressible and incompressible FSI.
[05651] A fully Eulerian FSI framework: introduction
Format : Talk at Waseda University
Author(s) :
Thomas Milcent (I2M Bordeaux)
Michel Bergmann (Inria - centre de l'université de Bordeaux)
Abstract : In the fully Eulerian framework, both the fluid and the solid are described
by an Eulerian approach. The fluid-structure problem is
recast as a complex flow: the fluid equations with
an elastic source term is coupled with a transport equation
on the Eulerian interface and deformation. In this presentation we will present
this approach in the case where the elastic media (bulk or/and membrane) is immersed in an incompressible or
compressible flow.
[05652] A fully Eulerian FSI framework: numerical approach and applications
Format : Talk at Waseda University
Author(s) :
Michel Bergmann (Inria - centre de l'université de Bordeaux)
Thomas Milcent (I2M Bordeaux)
Antoine Fondaneche (NUREA)
Abstract : A quadtree-based fully Eulerian finite volume approach for the simulation of fluid-structure interaction problems is presented. The discretization stencils are limited to the first layer of neighbors thus enhancing the efficiency of the parallel computations while limiting the numerical order of the finite volume discretizations that can be reached. To illustrate the versatility of the numerical model presented, a biomedical application, the axisymmetric simulation of a blood flow in a cardiac pump, is presented.
[02558] Embedded Methods for Floating Offshore Structures
Format : Online Talk on Zoom
Author(s) :
Jan Modderman (Delft University of Technology)
Oriol Colomés (Delft University of Technology)
Abstract : In this talk we will present a single-phase FE approach for free surface flows, where only the wave-structure interaction is accounted for, in combination with an unfitted floating structure with arbitrary geometry. In this work we propose a monolithic coupling with block preconditioning, ensuring robustness and efficiency of the solution. We will demonstrate the capabilities of the proposed framework with a series of tests for wave-structure interaction problems, assessing accuracy and conservation properties.
[03927] FULLY EULERIAN MODELS FOR FLUID-STRUCTURE INTERACTION: APPLICATION TO CAPSULES
Format : Talk at Waseda University
Author(s) :
Mirco Ciallella (ENSAM - I2M)
Thomas Milcent (ENSAM - I2M)
Abstract : Capsules have an important potential in the fields of biotechnologies but many scientific aspects, related to their modeling and simulation, are still challenging. In this context, eulerian models for fluid-structure interaction are a very promising tool to understand their behavior when interacting with complex geometries. In this talk, we will present a novel numerical tool to analyze complex applications of deformable capsules by introducing a solid bulk within the membrane.
