نتایج جستجو برای: fluid structure interaction fsi

تعداد نتایج: 2215775  

Journal: :Archives of Computational Methods in Engineering 2022

Abstract Fluid film bearings are well suited for high-speed industrial machineries like turbine generators and marine propulsion systems. Several numerical methods employed to theoretically investigate the flow phenomenon performance parameters of journal bearings, operating under various conditions. This paper reviews Computational Dynamics (CFD) Fluid–Structure Interaction (FSI) techniques th...

2009
A. Ricci

Cantilever vibration in fluid environment is probably one of the most common Fluid Structure Interaction (FSI) problems in the field of Micro/Nano Electro Mechanical Systems (MEMS/NEMS). Usually the effect of fluid on cantilever oscillation is characterized in terms of mode resonance frequencies and quality factors (Qs), being those two physical quantities what is actually measured in the dynam...

Journal: :Journal of Mechanics 2021

Abstract We present a novel formulation for the immersed coupling of isogeometric analysis and peridynamics simulation fluid–structure interaction (FSI). focus on air-blast FSI address computational challenges methods in fracture fragmentation by developing weakly volume-coupled means simple penalty approach. show mathematical several numerical examples inelastic ductile brittle solids under bl...

2010
Marina Piccinelli Lucia Mirabella Tiziano Passerini Eldad Haber Alessandro Veneziani

SUMMARY Numerical simulation of fluid-structure interaction (FSI) in the arterial system is a challenging and time consuming procedure because of the intrinsic heterogeneous nature of the problem. Moreover, in patient-specific simulations, modeling of the vascular structure requires parameter identification still difficult to accomplish. On the other hand, new imaging devices provide time seque...

Journal: :J. Comput. Physics 2012
Jeffrey W. Banks William D. Henshaw Donald W. Schwendeman

We describe a mixed Eulerian-Lagrangian approach for solving fluid-structure interaction (FSI) problems. The technique, which uses deforming composite grids (DCG), is applied to FSI problems that couple high speed compressible flow with elastic solids. The fluid and solid domains are discretized with composite overlapping grids. Curvilinear grids are aligned with each interface and these grids ...

2013
M. Razzaq C. Tsotskas S. Turek T. Kipouros M. Savill J. Hron

The integration and application of a new multi-objective tabu search optimization algorithm for Fluid Structure Interaction (FSI) problems are presented. The aim is to enhance the computational design process for real world applications and to achieve higher performance of the whole system for the four considered objectives. The described system combines the optimizer with a well established FS...

2016
L. Marimon Giovannetti J. Banks S. W. Boyd S. R. Turnock

The study presents an experimental and numerical evaluation of bend-twist elastic coupling in composite passive-adaptive structures. Due to the lack of experimental validation in Fluid Structure Interaction (FSI) investigations, a full-field deformation of an aerofoil-shaped section under wind loading is measured. The experimental analysis is carried out at the University of Southampton 3.5 m ×...

2011
Soroush Nobari Rosaire Mongrain Richard Leask Raymond Cartier

INTRODUCTION In recent years we have improved our previous fluid structure interaction (FSI) model of aortic valve first by addition of the sinuses of valsalva and now by expanding it to include the coronary structure. This FSI model will enable us to retrieve data related to either the fluid domain such as flow patterns, velocity distribution, perfusion level into the coronaries or the structu...

2014
Herwig Peters Daniel Ryan Wilkes

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...

2008
Matthias Heil Andrew L. Hazel Jonathan Boyle

We compare the relative performance of monolithic and segregated (partitioned) solvers for largedisplacement fluid–structure interaction (FSI) problems within the framework of oomphlib, the object-oriented multi-physics finite-element library, available as open-source software at http://www.oomph-lib.org. Monolithic solvers are widely acknowledged to be more robust than their segregated counter...

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