Publications
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POD-Galerkin reduced order model of the Boussinesq approximation for buoyancy-driven enclosed flows Ghent University
A parametric Reduced Order Model (ROM) for buoyancy-driven flow is developed for which the Full Order Model (FOM) is based on the finite volume approximation and the Boussinesq approximation is used for modeling the buoyancy. Therefore, there exists a two-way coupling between the incompressible Boussinesq equations and the energy equation. The reduced basis is constructed with a Proper Orthogonal Decomposition (POD) approach and to obtain the ...
A POD-Galerkin reduced order model of a turbulent convective buoyant flow of sodium over a backward-facing step Ghent University
Development of a coupling between a system thermal–hydraulic code and a reduced order CFD model Ghent University
Effect of fiber packing on POD-based reduced order model for the prediction of elastic properties of continuous fiber-reinforced composite materials Ghent University
Model Order Reduced Transient Acoustic Finite Element Simulations with Impedance Boundary Conditions KU Leuven
The efficiency of time-domain acoustic simulations is improved immensely if the degrees of freedom imparted by the spatial discretization are reduced. Time-stable model order reduction strategies achieve this by ensuring that frequency-domain system realizations transform in a physical manner after reduction. Frequency dependent damping matrices add to the challenge and require additional consideration. Handling the associated boundary condition ...
A reduced order cutFEM approach to model complex moving sound sources KU Leuven
While traditional finite element based vibro-acoustic analysis of structures is done on stationary structures, in many occasions the structure under investigation is actually moving. To perform accurate finite element analysis on the vibro-acoustic performance of such structures requires the evaluation of a time-varying system, leading to several challenges, such as the selection of a strategy to update the mesh to the new configuration and an ...
A reduced order rate based model for distillation in packed columns : dynamic simulation and the differentiation index problem KU Leuven
This paper presents a rigorous dynamic rate based model suitable for simulation of distillation of mixtures in packed columns. The model equations are described in detail considering structure exploitation at simulation level in order to alleviate the large number of states involved in the model description. Moreover, this kind of model may leads to differential-algebraic equations with a differentiation index higher than one. Here this issue is ...
FV-based POD-Galerkin reduced order model for boundary control of natural convection flows Ghent University
Reduced Order Model for Accounting for High Frequency Effects in Power Electronic Components KU Leuven
This paper proposes a reduced-order model of power electronic components based on the proper orthogonal decomposition. Starting from a full-wave finite-element model and several snapshots/frequencies, the reduced-order (RO) model is constructed. Local field values (e.g. magnetic flux density, electric current density, magnetic or electric field) and global quantities (e.g. characteristic complex impedance, joule losses) can be determined for the ...