High order entropy preserving ADER-DG schemes

E Gaburro, P Öffner, M Ricchiuto, D Torlo - Applied Mathematics and …, 2023 - Elsevier
In this paper, we develop a fully discrete entropy preserving ADER-Discontinuous Galerkin
(ADER-DG) method. To obtain this desired result, we equip the space part of the method …

Hyperbolic balance laws: residual distribution, local and global fluxes

R Abgrall, M Ricchiuto - Numerical Fluid Dynamics: Methods and …, 2022 - Springer
This review paper describes a class of scheme named “residual distribution schemes” or
“fluctuation splitting schemes”. They are a generalization of Roe's numerical flux in …

High-order accurate entropy-stable discontinuous collocated Galerkin methods with the summation-by-parts property for compressible CFD frameworks: Scalable …

M Parsani, R Boukharfane, IR Nolasco… - Journal of …, 2021 - Elsevier
This work reports on the performances of a fully-discrete hp-adaptive entropy stable
discontinuous collocated Galerkin method for the compressible Naiver–Stokes equations …

On the robustness and performance of entropy stable collocated discontinuous Galerkin methods

D Rojas, R Boukharfane, L Dalcin… - Journal of …, 2021 - Elsevier
In computational fluid dynamics, the demand for increasingly multidisciplinary reliable
simulations, for both analysis and design optimization purposes, requires transformational …

Fully well-balanced entropy controlled discontinuous Galerkin spectral element method for shallow water flows: global flux quadrature and cell entropy correction

Y Mantri, P Öffner, M Ricchiuto - Journal of Computational Physics, 2024 - Elsevier
We present a novel formulation of the discontinuous Galerkin spectral element method for
solving balance laws, with application to the shallow water equations. The scheme …

On improving the efficiency of ADER methods

MH Veiga, L Micalizzi, D Torlo - Applied Mathematics and Computation, 2024 - Elsevier
The (modern) arbitrary derivative (ADER) approach is a popular technique for the numerical
solution of differential problems based on iteratively solving an implicit discretization of their …

Well balanced residual distribution for the ALE spherical shallow water equations on moving adaptive meshes

L Arpaia, M Ricchiuto - Journal of Computational Physics, 2020 - Elsevier
We consider the numerical approximation of the Shallow Water Equations (SWEs) in
spherical geometry for oceanographic applications. To provide enhanced resolution of …

Extrapolated DIscontinuity Tracking for complex 2D shock interactions

M Ciallella, M Ricchiuto, R Paciorri… - Computer Methods in …, 2022 - Elsevier
A new shock-tracking technique that avoids re-meshing the computational grid around the
moving shock-front was recently proposed by the authors (Ciallella et al., 2020). The method …

High-order gradients with the shifted boundary method: an embedded enriched mixed formulation for elliptic PDEs

L Nouveau, M Ricchiuto, G Scovazzi - Journal of Computational Physics, 2019 - Elsevier
We propose an extension of the embedded boundary method known as “shifted boundary
method” to elliptic diffusion equations in mixed form (eg, Darcy flow, heat diffusion problems …

r-adaptive algorithms for supersonic flows with high-order Flux Reconstruction methods

FB Ameur, J Balis, R Vandenhoeck, A Lani… - Computer Physics …, 2022 - Elsevier
The present paper addresses the development and implementation of the first r-adaptive
mesh refinement (r-AMR) algorithm for a high-order Flux Reconstruction solver. The r …