نتایج جستجو برای: fluid structure interactionwater impactale formulationfinite element method
تعداد نتایج: 3276117 فیلتر نتایج به سال:
Numerical analysis of fluid sloshing in tank wagons is amongst essential research ideas that are focused by railway engineers. The free surface of fluid becomes unstable and turns into a dynamic complex non-linear problem for fluid-structure interaction (FSI). In this paper, initially, the dynamic response of the tank, including lateral force analysis and pressure distribution during braking, i...
Numerical simulations of cardiac blood pump systems are integral to the optimization device design, hydraulic performance and hemocompatibility. In wave membrane pumps, propulsion arises from propagation along an oscillating immersed membrane, which generates small pockets fluid that pushed towards outlet against adverse pressure gradient. We studied Fluid–Structure Interaction between flow via...
In this paper, we present some numerical studies on two partitioned fluid-structure interaction solvers: a preconditioned GMRES solver and a Newton based solver, for the fluid-structure interaction problems employing a nearly incompressible elasticity model in a classical mixed displacementpressure formulation. Both are highly relying on robust and efficient solvers for the fluid and structure ...
This paper presents a comparison of numerical methods used to model large scale acoustic coupled fluidstructure interaction (FSI) problems for single and double-walled cylindrical shells. The finite element method (FEM) is used to model the structure while the fast multipole boundary element method (FMBEM) is used to model the fluid domain and both models are coupled on the shared boundary surf...
This work compares results from analytical and numerical techniques to predict the modal contributions to the radiated sound power and far-field sound pressure for structures submerged in a heavy fluid medium. A fluid-loaded cylindrical shell with hemispherical end caps is examined. The cylinder is excited by either axial or transverse forces acting at one end, to predominantly excite the lowes...
We present an implementation of a fully variational formulation of an immersed methods for fluid-structure interaction problems based on the finite element method. While typical implementation of immersed methods are characterized by the use of approximate Dirac delta distributions, fully variational formulations of the method do not require the use of said distributions. In our implementation ...
In fluid-structure interaction problems, the computational domain is divided into a fluid and a structure part. The points in which both subdomains intersect, is called the interface. Forces are coupled through the interface. Therefore, an exact representation of the interface is of great importance. In this talk, we present an approach which assures the representation of the interface with hig...
This paper summarizes the newly developed immersed finite element method (IFEM) and its applications to the modeling of biological systems. This work was inspired by the pioneering work of Professor T.J.R. Hughes in solving fluid-structure interaction problems. In IFEM, a Lagrangian solid mesh moves on top of a background Eulerian fluid mesh which spans the entire computational domain. Hence, m...
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