22 citations · 85 across the 13 of their papers we have counts for
14 papers
Improving the scalability of a high-order atmospheric dynamics solver based on the deal.II library
Giuseppe Orlando, Tommaso Benacchio, Luca Bonaventura
We present recent advances on the massively parallel performance of a numerical scheme for atmosphere dynamics applications based on the deal.II library. The implicit-explicit disc…
High-order adaptive discontinuous finite elements for the shallow water equations with sub-grid irregular bathymetry
Luca Arpaia, Giuseppe Orlando, Christian Ferrarin +1
We present a discontinuous finite element method for the shallow water equations which exploits high-resolution realistic bathymetry data without any regularity assumption, also in…
Efficient and scalable atmospheric dynamics simulations using non-conforming meshes
Giuseppe Orlando, Tommaso Benacchio, Luca Bonaventura
We present the massively parallel performance of a -adaptive solver for atmosphere dynamics that allows for non-conforming mesh refinement. The numerical method is based on a Di…
Impact of curved elements for flows over orography with a Discontinuous Galerkin scheme
Giuseppe Orlando, Tommaso Benacchio, Luca Bonaventura
We present a quantitative assessment of the impact of high-order mappings on the simulation of flows over complex orography. Curved boundaries were not used in early numerical meth…
Asymptotic-preserving IMEX schemes for the Euler equations of non-ideal gases
Giuseppe Orlando, Luca Bonaventura
We analyze schemes based on a general Implicit-Explicit (IMEX) time discretization for the compressible Euler equations of gas dynamics, showing that they are asymptotic-preserving…
Robust and accurate simulations of flows over orography using non-conforming meshes
Giuseppe Orlando, Tommaso Benacchio, Luca Bonaventura
We systematically validate the static local mesh refinement capabilities of a recently proposed IMEX-DG scheme implemented in the framework of the deal.II library. Non-conforming m…
A comparison of different approaches to compute surface tension contribution in incompressible two-phase flows
Giuseppe Orlando, Paolo Francesco Barbante, Luca Bonaventura
We perform a quantitative assessment of different strategies to compute the contribution due to surface tension in incompressible two-phase flows using a conservative level set (CL…
Modeling Volatility of Disaster-Affected Populations: A Non-Homogeneous Geometric-Skew Brownian Motion Approach
Giacomo Ascione, Michele Bufalo, Giuseppe Orlando
This paper delves into the impact of natural disasters on affected populations and underscores the imperative of reducing disaster-related fatalities through proactive strategies.…
On the evolution equations of interfacial variables in two-phase flows
Giuseppe Orlando, Paolo Francesco Barbante, Luca Bonaventura
Many physical situations are characterized by interfaces with a non trivial shape so that relevant geometric features, such as interfacial area, curvature or unit normal vector, ca…
An implicit DG solver for incompressible two-phase flows with an artificial compressibility formulation
Giuseppe Orlando
We propose an implicit Discontinuous Galerkin (DG) discretization for incompressible two-phase flows using an artificial compressibility formulation. The conservative level set (CL…
An IMEX-DG solver for atmospheric dynamics simulations with adaptive mesh refinement
Giuseppe Orlando, Tommaso Benacchio, Luca Bonaventura
We present an accurate and efficient solver for atmospheric dynamics simulations that allows for non-conforming mesh refinement. The model equations are the conservative Euler equa…
A filtering monotonization approach for DG discretizations of hyperbolic problems
Giuseppe Orlando
We introduce a filtering technique for Discontinuous Galerkin approximations of hyperbolic problems. Following an approach already proposed for the Hamilton-Jacobi equations by oth…
An efficient IMEX-DG solver for the compressible Navier-Stokes equations for non-ideal gases
Giuseppe Orlando, Paolo Francesco Barbante, Luca Bonaventura
We propose an efficient, accurate and robust IMEX solver for the compressible Navier-Stokes equation describing non-ideal gases with general equations of state. The method, which i…
An efficient and accurate implicit DG solver for the incompressible Navier-Stokes equations
Giuseppe Orlando, Alessandro Della Rocca, Paolo Francesco Barbante +2
We propose an efficient, accurate and robust implicit solver for the incompressible Navier-Stokes equations, based on a DG spatial discretization and on the TR-BDF2 method for time…