Fluid-structure interaction (FSI) problems are of great interest, due to their applicability in science and engineering. However, the coupling between large fluid domains small moving solid walls presents numerous numerical difficulties and, some configurations, where thickness wall can be neglected, one consider membrane models, which derived from Koiter shell equations with a reduction comput...

Atherosclerotic plaques may rupture without warning and cause acute cardiovascular syndromes such as heart attack and stroke. It is believed that mechanical forces play an important role in plaque progression and rupture. A three-dimensional (3D) MRI-based finite-element model with multicomponent plaque structure and fluid-structure interactions (FSI) is introduced to perform mechanical analysi...

background: numerical study of angulation effects of renal arteries on blood flow has been of great interest for many researchers. objective: this paper aims at numerically determining the angulation effects of stenosed renal arteries on blood flow velocity and renal mass flow. method: an anatomically realistic model of abdominal aorta and renal arteries is reconstructed from ct-scan images and...

In this work we propose a stabilized explicit coupling scheme for fluid-structure interaction problems involving a viscous incompressible fluid. The coupled discrete formulation is based on Nitsche’s method with a time penalty term giving L-control on the fluid pressure variations at the interface. The scheme is stable, in the energy norm, irrespectively of the fluid-structure density ratio. Nu...

This work presents an immersed boundary–lattice Boltzmann method for free-swimming sperms in an incompressible viscous fluid. This method involves sperm model, fluid solver and fluid– structure interaction (FSI). The sperm is simplified as a nonlinear beam. To drive the swimming motion, an internal moment is introduced into the beam equation. The fluid dynamics is obtained by solving the lattic...

This paper presents a computational study of the fluid-structure interaction (FSI) mechanism in pressurized commodity tank cars in railroad application. Within the Lagrangian framework of Abaqus/Explicit, finite element analysis (FEA) is conducted to predict the structural response of tank cars under dynamic impact loading. A three-phase approach is adopted that explicitly models pressurized ga...

Composite propellers offer high damping characteristics and corrosion resistance when compared with metal propellers. But the design of a hybrid composite propeller with the same strength of metal propeller is the critical task. For this purpose, the present paper focusses on fluid-structure interaction analysis of hybrid composite propeller with Carbon/Epoxy, R-Glass/Epoxy and S2-Glass/Epoxy t...

This article covers research on an innovative propulsion system design for a Biomimetic Unmanned Underwater Vehicle (BUUV) operating at low speeds. The experiment was conducted laboratory test water tunnel equipped with specialised sensor equipment to assess the Fluid-Structure Interaction (FSI) and energy consumption of two different types systems. experimental data contrast undulating drag-ba...

The use of energy-saving devices is the most effective method for decreasing CO2 emissions, which an increasingly concerning environmental issue. asymmetric pre-swirl stator has been developed as device and successfully applied to various types vessels. In present study, a flexible material was determine variation in flow around its efficiency. A fluid–structure interaction (FSI) analysis syste...

In this paper, we described a grid-enabled solver for numerical simulations of fluidstructure interaction problems. We use a domain decomposition method such that the whole problem is reduced to an interface equation by requiring solving the structure and the fluid sub-problems independently on each grid node. For realizing this grid-enabled algorithm, a newly designed Client/Server model under...