A numerical approach based on the Lattice Boltzmann and Immersed Boundary methods is proposed to tackle the problem of the interaction of moving and/or deformable slender solids with an incompressible fluid flow. The method makes use of a Cartesian uniform lattice that encompasses both the fluid and the solid domains. The deforming/moving elements are tracked through a series of Lagrangian mark...

An immersed boundary method is coupled to a turbulent wall model and Large Eddy Simulation, within the Lattice-Boltzmann framework. The able handle arbitrarily moving objects in high Reynolds number flow accurately capture shear layer near effects. We perform thorough numerical study which validates on set of test-cases increasing complexity, order demonstrate application this industrial condit...

The development of most cardiovascular diseases can be associated with certain specific hemodynamic conditions. Hence, a detailed description of such conditions is an important information for the medical community. With this goal in mind, we propose in this work a lattice-Boltzmann Immersed Boundary coupled method to model two and three-dimensional blood flows in deformable vessels. The lattic...

A relaxation system based on a Lattice-Boltzmann type discrete velocity model is considered in the low Mach number limit. A third order relaxation scheme is developed working uniformly for all ranges of the mean free path and Mach number. In the incompressible Navier-Stokes limit the scheme reduces to an explicit high order finite difference scheme for the incompressible Navier-Stokes equations...

The accuracy of two direct coupled two-step CFD/CAA methods is discussed. For the flow field either a finite-volume (FV) method for solution Navier–Stokes equations or lattice Boltzmann (LB) to discontinuous Galerkin (DG) acoustic perturbation equations. coupling takes advantage joint Cartesian mesh allowing exchange sources without MPI communication. An immersed boundary treatment scattering f...

The immersed finite element-finite difference (IFED) method is a computational approach to modeling interactions between fluid and an structure. This uses element (FE) approximate the stresses forces on structural mesh (FD) momentum of entire fluid-structure system Cartesian grid. fundamental used by this follows boundary framework for interaction (FSI), in which force spreading operator prolon...