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检索条件"机构=MOX - Laboratory for Modeling and Scientific Computing"
40 条 记 录,以下是1-10 订阅
排序:
Numerical Solution of linear drift-diffusion and pure drift equations on one-dimensional graphs
arXiv
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arXiv 2024年
作者: Crippa, Beatrice Scotti, Anna Villa, Andrea MOX-Laboratory for Modeling and Scientific Computing Department of Mathematics Politecnico di Milano Milan20133 Italy Milano20134 Italy
We propose numerical schemes for the approximate solution of problems defined on the edges of a one-dimensional graph. In particular, we consider linear transport and a drift-diffusion equations, and discretize them b... 详细信息
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A mixed-dimensional model for the electrostatic problem on coupled domains
arXiv
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arXiv 2024年
作者: Crippa, Beatrice Scotti, Anna Villa, Andrea MOX-Laboratory for Modeling and Scientific Computing Department of Mathematics Politecnico di Milano Milan20133 Italy Milano20134 Italy
We derive a mixed-dimensional 3D-1D formulation of the electrostatic equation in two domains with different dielectric constants to compute, with an affordable computational cost, the electric field and potential in t... 详细信息
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Polytopal discontinuous Galerkin methods for low-frequency poroelasticity coupled to unsteady Stokes flow
arXiv
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arXiv 2025年
作者: Botti, Michele Fumagalli, Ivan Mazzieri, Ilario MOX Laboratory for Modeling and Scientific Computing Dipartimento di Matematica Politecnico di Milano Piazza Leonardo da Vinci 32 MilanoI-20133 Italy
We focus on the numerical analysis of a polygonal discontinuous Galerkin scheme for the simulation of the exchange of fluid between a deformable saturated poroelastic structure and an adjacent free-flow channel. We sp... 详细信息
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The lifex library version 2.0
arXiv
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arXiv 2024年
作者: Bucelli, Michele MOX Laboratory of Modeling and Scientific Computing Dipartimento di Matematica Politecnico di Milano Piazza Leonardo da Vinci 32 Milano20133 Italy
This article presents updates to lifex [Africa, SoftwareX (2022)], a C++ library for high-performance finite element simulations of multiphysics, multiscale and multidomain problems. In this release, we introduce an a... 详细信息
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A polytopal discontinuous Galerkin method for the pseudo-stress formulation of the unsteady Stokes problem
arXiv
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arXiv 2024年
作者: Antonietti, Paola F. Botti, Michele Cancrini, Alessandra Mazzieri, Ilario MOX Laboratory for Modeling and Scientific Computing Dipartimento di Matematica Politecnico di Milano Piazza Leonardo da Vinci 32 MilanoI-20133 Italy
This work aims to construct and analyze a discontinuous Galerkin method on polytopal grids (PolydG) to solve the pseudo-stress formulation of the unsteady Stokes problem. The pseudo-stress variable is introduced due t... 详细信息
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Shape-informed surrogate models based on signed distance function domain encoding
arXiv
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arXiv 2024年
作者: Zhang, Linying Pagani, Stefano Zhang, Jun Regazzoni, Francesco MOX Laboratory of Modeling and Scientific Computing Dipartimento di Matematica Politecnico di Milano Milano Italy School of Aeronautic Science and Engineering Beihang University Beijing China
We propose a non-intrusive method to build surrogate models that approximate the solution of parameterized partial differential equations (PDEs), capable of taking into account the dependence of the solution on the sh... 详细信息
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A space-time discontinuous Galerkin method for coupled poroelasticity-elasticity problems
arXiv
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arXiv 2023年
作者: Antonietti, Paola F. Botti, Michele Mazzieri, Ilario MOX Laboratory for Modeling and Scientific Computing Dipartimento di Matematica Politecnico di Milano Piazza Leonardo da Vinci 32 MilanoI-20133 Italy
This work is concerned with the analysis of a space-time finite element discontinuous Galerkin method on polytopal meshes (XT-PolydG) for the numerical discretization of wave propagation in coupled poroelastic-elastic... 详细信息
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A hybrid finite volume - spectral element method for aeroacoustic problems
arXiv
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arXiv 2023年
作者: Artoni, Alberto Antonietti, Paola F. Mazzieri, Ilario Parolini, Nicola Rocchi, Daniele MOX-Laboratory for Modeling and Scientific Computing Department of Mathematics Politecnico di Milano Milan20133 Italy Department of Mechanical Engineering Politecnico di Milano Milan20156 Italy
We propose a hybrid Finite Volume (FV) - Spectral Element Method (SEM) for modelling aeroacoustic phenomena based on the Lighthill’s acoustic analogy. First the fluid solution is computed employing a FV method. Then,... 详细信息
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Coupled Eikonal problems to model cardiac reentries in Purkinje network and myocardium
arXiv
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arXiv 2024年
作者: Brunati, Samuele Bucelli, Michele Piersanti, Roberto Dede, Luca Vergara, Christian MOX Laboratory of Modeling and Scientific Computing Dipartimento di Matematica Politecnico di Milano Milano Italy LaBS Laboratory of Biological Structure Mechanics Dipartimento di Chimica Materiali e Ingegneria Chimica Politecnico di Milano Milano Italy
We propose a novel partitioned scheme based on Eikonal equations to model the coupled propagation of the electrical signal in the His-Purkinje system and in the myocardium for cardiac electrophysiology. This scheme al... 详细信息
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Discontinuous Galerkin approximation of the fully-coupled thermo-poroelastic problem
arXiv
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arXiv 2022年
作者: Bonetti, Stefano Botti, Michele Antonietti, Paola F. MOX-Laboratory for Modeling and Scientific Computing Dipartimento di Matematica Politecnico di Milano Piazza Leondardo da Vinci 32 Milano20133 Italy
We present and analyze a discontinuous Galerkin method for the numerical modelling of the fully-coupled quasi-static thermo-poroelastic problem. In particular, for the space discretization we introduce a discontinuous... 详细信息
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