Publications
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Transient modelling of the rotor-tower interaction of wind turbines using fluid-structure interaction simulations Ghent University
Fluid-structure interaction in the Lagrange-Poincaré formalism : the Navier-Stokes and inviscid regimes Ghent University
In this paper, we derive the equations of motion for an elastic body interacting with a perfect fluid via the framework of Lagrange-Poincare reduction. We model the combined fluid-structure system as a geodesic curve on the total space of a principal bundle on which a diffeomorphism group acts. After reduction by the diffeomorphism group we obtain the fluid-structure interactions where the fluid evolves by the inviscid fluid equations. Along the ...
Comparison between two different decompositions for the solution of fluid-structure interaction problems Ghent University
Several types of decompositions and coupling algorithms can be used when solving a fluid-structure interaction problem in a partitioned way. In the case of Dirichlet-Neumann (DN) decomposition, the flow equations are solved with a Dirichlet boundary condition on the fluid-structure interface, while the structural equations are solved with a Neumann boundary condition on the interface. Robin-Neumann (RN) decomposition denotes a Robin boundary ...
Performance of a new partitioned procedure versus a monolithic procedure in fluid-structure interaction Ghent University
Multi-solver algorithms for the partitioned simulation of fluid-structure interaction Ghent University
Partitioned simulation of fluid-structure interaction coupling black-box solvers with quasi-Newton techniques Ghent University
Development of algorithms for the partitioned simulation of strongly coupled fluid-structure interaction problems Ghent University
Fluid-structure interaction refers to the mutual interaction between a fluid flow and a deforming structure. This phenomenon occurs due to the blood flow in our arteries and also during the inflation of a balloon. To simulate fluid-structure interaction problems, both flow equations and the structural equations have to be solved. Partitioned techniques solve the flow equations and the structural equations separately by coupling a flow solver ...
Optimization of a piezoelectric fan using fluid-structure interaction simulation Ghent University
In this paper, the heat transfer from a single heat fin to the air flow in the wake of a piezoelectric fan (piezofan) is optimised. Both the heat fin and the piezofan are positioned in a channel, which has a significant influence on the flow field. The design variable is the frequency of the voltage applied to the piezofan. The heat transfer for different excitation frequencies is calculated using unsteady fluid-structure interaction ...
The influence of the structural model on the stability of coupling iterations in partitioned fluid-structure interaction simulations Ghent University
In partitioned simulations of fluid-structure interaction (FSI), the flow equations and the structural equations are solved with separate solvers. If the interaction between the flow and the flexible structure is strong, coupling iterations between both solvers have to be performed in each time step. In previous work, a Fourier stability analysis of Gauss-Seidel coupling iterations was presented for the unsteady, incompressible flow in a ...