OBJECTIVES The aim of this study was to elucidate the mechanisms and underlying biomechanical factors that may play a role in the risk of rupture of vulnerable plaques (VPs) by studying patient-based geometries of coronary arteries reconstructed from intravascular ultrasound (IVUS) imaging utilizing fluid-structure interaction (FSI) numerical simulations. BACKGROUND According to recent estima...

Study of wind farms is an area active research. Researchers have proposed simplified farm models that define the wake structure in a and how they affect performance turbines. Interestingly, these do not take into account important aspect fluid flow, i.e., fluid–structure interaction (FSI) between turbines wind, which has role to play. This motivated researchers implement numerical analysis tool...

We present an operator-splitting scheme for fluid-structure interaction (FSI) problems in hemodynamics, where the thickness of the structural wall is comparable to the radius of the cylindrical fluid domain. The equations of linear elasticity are used to model the structure, while the Navier-Stokes equations for an incompressible viscous fluid are used to model the fluid. The operator splitting...

As a method to solve flow problems on complicated domains, an immersed boundary (IB) method equipped with the discrete forcing based on the fluid-structure interaction (FSI) is proposed in which the virtual interpolation points are introduced. The discrete force to the background fluid due to the no-slip condition on the surface of a fixed rigid boundary is the instantaneous amount of momentum ...

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...

In this article, we formulate a monolithic optimal control method for general time-dependent Fluid-Structure Interaction (FSI) systems with large solid deformation. We consider displacement-tracking type of objective constraint the velocity, tackle problems by piecewise-in-time control, cope displacement using one-velocity fictitious domain method, and solve fully-coupled FSI corresponding adjo...

BACKGROUND The management and prognosis of aortic dissection (AD) is often challenging and the use of personalised computational models is being explored as a tool to improve clinical outcome. Including vessel wall motion in such simulations can provide more realistic and potentially accurate results, but requires significant additional computational resources, as well as expertise. With clinic...

Abdominal aortic aneurysm (AAA) is a localized dilatation of the aortic wall. The lack of an accurate AAA rupture risk index remains an important problem in the clinical management of the disease. To accurately estimate AAA rupture risk, detailed information on patient specific wall stress distribution and aortic wall tissue yield stress is required. A complete fluid structure interaction (FSI)...

The fluid–structure interaction (FSI) effect has a significant impact on the static and dynamic performance of aerostatic spindles, which should be fully considered when developing new product. To enhance overall two-round optimization design method for spindles considering FSI is proposed in this article. An spindle optimized to elaborate procedure method. In first-round design, geometrical pa...