Fluid–structure interaction analysis of free convection in an inclined square cavity partitioned by a flexible impermeable membrane with sinusoidal temperature heating

Meccanica ◽  
2017 ◽  
Vol 52 (11-12) ◽  
pp. 2685-2703 ◽  
Author(s):  
S. A. M. Mehryan ◽  
A. J. Chamkha ◽  
M. A. Ismael ◽  
M. Ghalambaz
Keyword(s):  
Free Convection ◽  
Interaction Analysis ◽  
Fluid Structure Interaction ◽  
Square Cavity ◽  
Fluid Structure ◽  
Structure Interaction ◽  
Temperature Heating ◽  
Sinusoidal Temperature

scholarly journals Role of fluid-structure interaction in free convection in square open cavity with double flexible oscillating fins

2021 ◽  
Author(s):  
Habibis Saleh ◽  
Kohilavani Naganthran ◽  
Ishak Hashim ◽  
Mohammad Ghalambaz ◽  
Roslinda Nazar
Keyword(s):  
Free Convection ◽  
Fluid Structure Interaction ◽  
Open Cavity ◽  
Fluid Structure ◽  
Structure Interaction

A computational fluid-structure interaction analysis of a fiber-reinforced stentless aortic valve

2003 ◽  
Vol 36 (5) ◽  
pp. 699-712 ◽  
Author(s):  
J. De Hart ◽  
F.P.T. Baaijens ◽  
G.W.M. Peters ◽  
P.J.G. Schreurs
Keyword(s):  
Aortic Valve ◽  
Interaction Analysis ◽  
Fluid Structure Interaction ◽  
Fiber Reinforced ◽  
Fluid Structure ◽  
Structure Interaction

scholarly journals B-Spline Impulse Response Functions of Rigid Bodies for Fluid-Structure Interaction Analysis

2018 ◽  
Vol 2018 ◽  
pp. 1-10 ◽  
Author(s):  
S. Zhou-Bowers ◽  
D. C. Rizos
Keyword(s):  
Impulse Response ◽  
Dynamic Models ◽  
Interaction Analysis ◽  
Fluid Structure Interaction ◽  
Rigid Bodies ◽  
The Body ◽  
Impulse Response Functions ◽  
Fluid Structure ◽  
B Spline ◽  
Structure Interaction

Reduced 3D dynamic fluid-structure interaction (FSI) models are proposed in this paper based on a direct time-domain B-spline boundary element method (BEM). These models are used to simulate the motion of rigid bodies in infinite or semi-infinite fluid media in real, or near real, time. B-spline impulse response function (BIRF) techniques are used within the BEM framework to compute the response of the hydrodynamic system to transient forces. Higher-order spatial and temporal discretization is used in developing the kinematic FSI model of rigid bodies and computing its BIRFs. Hydrodynamic effects on the massless rigid body generated by an arbitrary transient acceleration of the body are computed by a mere superposition of BIRFs. Finally, the dynamic models of rigid bodies including inertia effects are generated by introducing the kinematic interaction model to the governing equation of motion and solve for the response in a time-marching scheme. Verification examples are presented and demonstrate the stability, accuracy, and efficiency of the proposed technique.

scholarly journals A fluid-structure interaction analysis of the human aortic arch under inertial load

2021 ◽  
Author(s):  
Jonathan M Zalger
Keyword(s):  
Mass Flow ◽  
Data Transfer ◽  
Interaction Analysis ◽  
Fluid Structure Interaction ◽  
Longitudinal Axis ◽  
Tissue Response ◽  
Upper Body ◽  
Inertial Load ◽  
Fluid Structure ◽  
Structure Interaction

Presented is an investigation into the use of numerical methods for modelling the effects of inertial load on the human cardiovascular system. An anatomically correct geometry was developed based on three-dimensional computed tomography (CT) data and independent meshes were created for the solid and fluid regimes. These domains were simulated using independent solvers and subsequently coupled using an intermediate data transfer alogrithm. At the inlet of the arch, a pulsatile velocity boundary condition was enforced replicating the cardiac cycle. Time invariant, resistive boundary conditions were used at all outlets and a linear isotropic constitutive model was used for tissue response. Verification was conducted by comparing simulation results at standard earth gravity (9.81 m/s²) with published values for velocity, mass flow rate, deformation, and qualitative flow behaviour. The presented fluid-structure interaction (FSI) model shows strong agreement with accepted normal values. Inertial load was then applied along the longitudinal axis of the arch in multiples of standard gravity to a maximum of 8+Gz. This load increased arch flow velocities, and reduced mass flow in the ascending brachiocephalic and carotid arteries. Blood flow from the arch to the upper body and brain ceased near 8+Gz. Although the presented results are preliminary, the feasibility of such an analysis has been successfully demonstrated.

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