A High Order Discontinuous Galerkin Method for Fluid-Structure Interaction

A high-order discontinuous Galerkin method for fluid-structure interaction with efficient implicit-explicit time stepping

We present a high-order accurate scheme for coupled fluid-structure interaction problems. The fluid is discretized using a discontinuous Galerkin method on unstructured tetrahedral meshes, and the structure uses a high-order volumetric continuous Galerkin finite element method. Standard radial basis functions are used for the mesh deformation. The time integration is performed using a partition...

High - Order Discontinuous Galerkin Fluid - Structure Interaction Methods

High-Order Discontinuous Galerkin Fluid-Structure Interaction Methods by Bradley Michael Froehle Doctor of Philosophy in Mathematics University of California, Berkeley Professor Per-Olof Persson, Chair We present a high-order accurate scheme for fully coupled fluid-structure interaction problems. The fluid is discretized using a discontinuous Galerkin method on unstructured tetrahedral meshes, ...

A High-Order Implicit-Explicit Fluid-Structure Interaction Method for Flapping Flight

We present a high-order accurate scheme for fluid-structure interaction (FSI) simulations of flapping flight. The compressible Navier-Stokes equations are discretized using a discontinuous Galerkin arbitrary Lagrangian-Eulerian (DG-ALE) method on an unstructured tetrahedral mesh, and a wing-like structure, represented as a neo-Hookean material, is discretized using standard continuous Galerkin ...

Implicit mesh discontinuous Galerkin methods and interfacial gauge methods for high-order accurate interface dynamics, with applications to surface tension dynamics, rigid body fluid-structure interaction, and free surface flow: Part I

Fluid-Structure Interaction of Vibrating Composite Piezoelectric Plates Using Exponential Shear Deformation Theory

In this article fluid-structure interaction of vibrating composite piezoelectric plates is investigated. Since the plate is assumed to be moderately thick, rotary inertia effects and transverse shear deformation effects are deliberated by applying exponential shear deformation theory. Fluid velocity potential is acquired using the Laplace equation, and fluid boundary conditions and wet dynamic ...

Investigation of Fluid-structure Interaction by Explicit Central Finite Difference Methods

Fluid-structure interaction (FSI) occurs when the dynamic water hammer forces; cause vibrations in the pipe wall. FSI in pipe systems due to Poisson and junction coupling has been the center of attention in recent years. It causes fluctuations in pressure heads and vibrations in the pipe wall. The governing equations of this phenomenon include a system of first order hyperbolic partial differen...