5 papers
A complete simulation framework for stone degradation on 3D real geometries
Silvia Preda, Gabriella Bretti, Francesco Freddi +2
We present a complete workflow for predicting stone degradation phenomena, such as marble sulfation, in works of art. The main challenge is to accurately acquire the geometry of th…
SCOUT: Semi-Lagrangian COnservative and Unconditionally sTable schemes for nonlinear advection-diffusion problems
Silvia Preda, Walter Boscheri, Matteo Semplice +1
In this work, we propose a new semi-Lagrangian (SL) finite difference scheme for nonlinear advection-diffusion problems. To ensure conservation, which is fundamental for achieving…
Implicit reconstruction from point cloud: an adaptive level-set-based semi-Lagrangian method
Silvia Preda, Matteo Semplice
We propose a level-set-based semi-Lagrangian method on graded adaptive Cartesian grids to address the problem of surface reconstruction from point clouds. The goal is to obtain an…
Surface reconstruction from point cloud using a semi-Lagrangian scheme with local interpolator
Silvia Preda, Matteo Semplice
We propose a level set method to reconstruct unknown surfaces from point clouds, without assuming that the connections between points are known. We consider a variational formulati…
A CWENO large time-step scheme for Hamilton--Jacobi equations
E. Carlini, R. Ferretti, S. Preda +1
We propose a high order numerical scheme for time-dependent first order Hamilton--Jacobi--Bellman equations. In particular we propose to combine a semi-Lagrangian scheme with a Cen…