Zobrazeno 1 - 10
of 48
pro vyhledávání: '"Chiocchetti, Simone"'
We present a novel quasi-conservative arbitrary high order accurate ADER discontinuous Galerkin (DG) method allowing to efficiently use a non-conservative form of the considered partial differential system, so that the governing equations can be solv
Externí odkaz:
http://arxiv.org/abs/2406.15644
Autor:
Gaburro, Elena, Chiocchetti, Simone
In this work, we present a novel family of high order accurate numerical schemes for the solution of hyperbolic partial differential equations (PDEs) which combines several geometrical and physical structure preserving properties. First, we settle ou
Externí odkaz:
http://arxiv.org/abs/2403.10917
In this paper, a thermodynamically consistent solution of the interfacial Riemann problem for the first-order hyperbolic continuum model of Godunov, Peshkov and Romenski (GPR model) is presented. In the presence of phase transition, interfacial physi
Externí odkaz:
http://arxiv.org/abs/2403.01847
Autor:
Chiocchetti, Simone
This dissertation is a contribution to the development of a unified model of continuum mechanics, describing both fluids and elastic solids as a general continua, with a simple material parameter choice being the distinction between inviscid or visco
Externí odkaz:
http://hdl.handle.net/11572/346999
Autor:
Chiocchetti, Simone, Dumbser, Micheal
In this paper, we present a semi-implicit numerical solver for a first order hyperbolic formulation of two-phase flow with surface tension and viscosity. The numerical method addresses several complexities presented by the PDE system in consideration
Externí odkaz:
http://arxiv.org/abs/2208.05893
Autor:
Gaburro, Elena, Chiocchetti, Simone
Hyperbolic partial differential equations (PDEs) cover a wide range of interesting phenomena, from human and hearth-sciences up to astrophysics: this unavoidably requires the treatment of many space and time scales in order to describe at the same ti
Externí odkaz:
http://arxiv.org/abs/2208.02092
A cell-centered implicit-explicit updated Lagrangian finite volume scheme on unstructured grids is proposed for a unified first order hyperbolic formulation of continuum fluid and solid mechanics. The scheme provably respects the stiff relaxation lim
Externí odkaz:
http://arxiv.org/abs/2107.06038
Autor:
Peshkov, Ilya, Dumbser, Michael, Boscheri, Walter, Romenski, Evgeniy, Chiocchetti, Simone, Ioriatti, Matteo
We discuss the applicability of a unified hyperbolic model for continuum fluid and solid mechanics to modeling non-Newtonian flows and in particular to modeling the stress-driven solid-fluid transformations in flows of viscoplastic fluids, also calle
Externí odkaz:
http://arxiv.org/abs/2012.07656
Autor:
Gabriel, Alice-Agnes, Li, Duo, Chiocchetti, Simone, Tavelli, Maurizio, Peshkov, Ilya, Romenski, Evgeniy, Dumbser, Michael
Earthquake fault zones are more complex, both geometrically and rheologically, than an idealised infinitely thin plane embedded in linear elastic material. To incorporate nonlinear material behaviour, natural complexities, and multi-physics coupling
Externí odkaz:
http://arxiv.org/abs/2007.01026
In this paper we present three different numerical approaches to account for curl-type involution constraints in hyperbolic partial differential equations for continuum physics. All approaches have a direct analogy to existing and well-known divergen
Externí odkaz:
http://arxiv.org/abs/2003.02799