38 citations · 435 across the 22 of their papers we have counts for
22 papers
A hybrid pressure formulation of the face-centred finite volume method for viscous laminar incompressible flows
Matteo Giacomini, Davide Cortellessa, Luan M. Vieira +2
This work presents a hybrid pressure face-centred finite volume (FCFV) solver to simulate steady-state incompressible Navier-Stokes flows. The method leverages the robustness, in t…
A face-centred finite volume method for laminar and turbulent incompressible flows
Luan M. Vieira, Matteo Giacomini, Ruben Sevilla +1
This work develops, for the first time, a face-centred finite volume (FCFV) solver for the simulation of laminar and turbulent viscous incompressible flows. The formulation relies…
Nonintrusive reduced order model for parametric solutions of inertia relief problems
F. Cavaliere, S. Zlotnik, R. Sevilla +2
The Inertia Relief (IR) technique is widely used by industry and produces equilibrated loads allowing to analyze unconstrained systems without resorting to the more expensive full…
A non-oscillatory face-centred finite volume method for compressible flows
Jordi Vila-Pérez, Matteo Giacomini, Ruben Sevilla +1
This work presents the face-centred finite volume (FCFV) paradigm for the simulation of compressible flows. The FCFV method defines the unknowns at the face barycentre and uses a h…
HDGlab: An open-source implementation of the hybridisable discontinuous Galerkin method in MATLAB
Matteo Giacomini, Ruben Sevilla, Antonio Huerta
This paper presents HDGlab, an open source MATLAB implementation of the hybridisable discontinuous Galerkin (HDG) method. The main goal is to provide a detailed description of both…
Hybridisable discontinuous Galerkin formulation of compressible flows
Jordi Vila-Pérez, Matteo Giacomini, Ruben Sevilla +1
This work presents a review of high-order hybridisable discontinuous Galerkin (HDG) methods in the context of compressible flows. Moreover, an original unified framework for the de…
Separated response surfaces for flows in parametrised domains: comparison of a priori and a posteriori PGD algorithms
Matteo Giacomini, Luca Borchini, Ruben Sevilla +1
Reduced order models (ROM) are commonly employed to solve parametric problems and to devise inexpensive response surfaces to evaluate quantities of interest in real-time. There are…
Hybridisable discontinuous Galerkin solution of geometrically parametrised Stokes flows
Ruben Sevilla, Luca Borchini, Matteo Giacomini +1
This paper proposes a novel computational framework for the solution of geometrically parametrised flow problems governed by the Stokes equation. The proposed method uses a high-or…
Parametric solutions of turbulent incompressible flows in OpenFOAM via the proper generalised decomposition
Vasileios Tsiolakis, Matteo Giacomini, Ruben Sevilla +2
An a priori reduced order method based on the proper generalised decomposition (PGD) is proposed to compute parametric solutions involving turbulent incompressible flows of interes…
A second-order face-centred finite volume method on general meshes with automatic mesh adaptation
Matteo Giacomini, Ruben Sevilla
A second-order face-centred finite volume strategy on general meshes is proposed. The method uses a mixed formulation in which a constant approximation of the unknown is computed o…
An HLL Riemann solver for the hybridised discontinuous Galerkin formulation of compressible flows
Jordi Vila-Pérez, Matteo Giacomini, Ruben Sevilla +1
This work proposes a high-order hybridised discontinuous Galerkin (HDG) formulation of the Harten-Lax-Van Leer (HLL) Riemann solver for compressible flows. A unified framework is i…
Tutorial on Hybridizable Discontinuous Galerkin (HDG) Formulation for Incompressible Flow Problems
Matteo Giacomini, Ruben Sevilla, Antonio Huerta
A hybridizable discontinuous Galerkin (HDG) formulation of the linearized incompressible Navier-Stokes equations, known as Oseen equations, is presented. The Cauchy stress formulat…
Discontinuous Galerkin approximations in computational mechanics: hybridization, exact geometry and degree adaptivity
Matteo Giacomini, Ruben Sevilla
Discontinuous Galerkin (DG) discretizations with exact representation of the geometry and local polynomial degree adaptivity are revisited. Hybridization techniques are employed to…
A second-order face-centred finite volume method for elliptic problems
Luan M Vieira, Matteo Giacomini, Ruben Sevilla +1
A second-order face-centred finite volume method (FCFV) is proposed. Contrary to the more popular cell-centred and vertex-centred finite volume (FV) techniques, the proposed method…
Nonintrusive proper generalised decomposition for parametrised incompressible flow problems in OpenFOAM
Vasileios Tsiolakis, Matteo Giacomini, Ruben Sevilla +2
The computational cost of parametric studies currently represents the major limitation to the application of simulation-based engineering techniques in a daily industrial environme…
Parametric solutions involving geometry integrated with computer-aided design
Ruben Sevilla, Sergio Zlotnik, Antonio Huerta
The main objective of this work is to describe a general and original approach for computing an off-line solution for a set of parameters describing the geometry of the domain. Tha…
A locking-free face-centred finite volume (FCFV) method for linear elasticity
Ruben Sevilla, Matteo Giacomini, Antonio Huerta
A face-centred finite volume (FCFV) method is proposed for the linear elasticity equation. The FCFV is a mixed hybrid formulation, featuring a system of first-order equations, that…
A superconvergent HDG method for Stokes flow with strongly enforced symmetry of the stress tensor
Matteo Giacomini, Alexandros Karkoulias, Ruben Sevilla +1
This work proposes a superconvergent hybridizable discontinuous Galerkin (HDG) method for the approximation of the Cauchy formulation of the Stokes equation using same degree of po…
A super--convergent hybridisable discontinuous Galerkin method for linear elasticity
Ruben Sevilla, Matteo Giacomini, Alexandros Karkoulias +1
The first super-convergent hybridisable discontinuous Galerkin (HDG) method for linear elastic problems capable of using the same degree of approximation for both the primal and mi…
HDG-NEFEM with degree adaptivity for Stokes flows
Ruben Sevilla, Antonio Huerta
The NURBS-enhanced finite element method (NEFEM) combined with a hybridisable discontinuous Galerkin (HDG) approach is presented for the first time. The proposed technique complete…
A face-centred finite volume method for second-order elliptic problems
Ruben Sevilla, Matteo Giacomini, Antonio Huerta
This work proposes a novel finite volume paradigm, the face-centred finite volume (FCFV) method. Contrary to the popular vertex (VCFV) and cell (CCFV) centred finite volume methods…
Recent Developments in CAD/analysis Integration
H. Lian, S. P. A. Bordas, R. Sevilla +1
For linear elastic problems, it is well-known that mesh generation dominates the total analysis time. Different types of methods have been proposed to directly or indirectly allevi…