Zobrazeno 1 - 10
of 203
pro vyhledávání: '"Scovazzi, P"'
We extend the shifted boundary method (SBM) to the simulation of incompressible fluid flow using immersed octree meshes. Previous work on SBM for fluid flow primarily utilized two- or three-dimensional unstructured tetrahedral grids. Recently, octree
Externí odkaz:
http://arxiv.org/abs/2411.00272
Autor:
Anjeza Xholli, Filippo Molinari, Umberto Scovazzi, Ambrogio Pietro Londero, Isabella Perugi, Chiara Kratochwila, Francesca Cremonini, Angelo Cagnacci
Publikováno v:
Ultrasonography, Vol 43, Iss 6, Pp 490-498 (2024)
Purpose Internal cervical os (ICO) stiffness is related to menstrual pain, a key symptom of endometriosis. The study evaluated whether women with endometriosis have a stiffer ICO than unaffected women. Methods A retrospective cross-sectional analysis
Externí odkaz:
https://doaj.org/article/96138ef9fd774e06a733dc16d284af0c
We present a new method for two-material Lagrangian hydrodynamics, which combines the Shifted Interface Method (SIM) with a high-order Finite Element Method. Our approach relies on an exact (or sharp) material interface representation, that is, it us
Externí odkaz:
http://arxiv.org/abs/2309.11821
We propose a new Nitsche-type approach for weak enforcement of normal velocity boundary conditions for a Lagrangian discretization of the compressible shock-hydrodynamics equations using high-order finite elements on curved boundaries. Specifically,
Externí odkaz:
http://arxiv.org/abs/2309.00785
Autor:
Yang, Cheng-Hau, Saurabh, Kumar, Scovazzi, Guglielmo, Canuto, Claudio, Krishnamurthy, Adarsh, Ganapathysubramanian, Baskar
The accurate and efficient simulation of Partial Differential Equations (PDEs) in and around arbitrarily defined geometries is critical for many application domains. Immersed boundary methods (IBMs) alleviate the usually laborious and time-consuming
Externí odkaz:
http://arxiv.org/abs/2307.01479
We introduce and analyze a penalty-free formulation of the Shifted Boundary Method (SBM), inspired by the asymmetric version of the Nitsche method. We prove its stability and convergence for arbitrary order finite element interpolation spaces and we
Externí odkaz:
http://arxiv.org/abs/2306.12706
Autor:
Perona, Giovanni, Meo, Angelo Raffaele, Allegretti, Marco, Bordi, Isabella, Marengo, Elena, Mazzetti, Bruno, Scovazzi, Mario
The purpose of the following proposal is to create a new class of antennas of low weight but with a large transmitting and receiving surface made of metallized fabric. This class of antennas will be stationed in low satellite orbits, at about 2000 km
Externí odkaz:
http://arxiv.org/abs/2304.08065
Autor:
Zeng, Xianyi, Stabile, Giovanni, Karatzas, Efthymios N., Scovazzi, Guglielmo, Rozza, Gianluigi
We consider fully discrete embedded finite element approximations for a shallow water hyperbolic problem and its reduced-order model. Our approach is based on a fixed background mesh and an embedded reduced basis. The Shifted Boundary Method for spat
Externí odkaz:
http://arxiv.org/abs/2201.09546
Autor:
Tullio Scovazzi
Publikováno v:
Antropologia e Teatro, Iss 16, Pp 11-25 (2023)
Externí odkaz:
https://doaj.org/article/ed48b7514893448bb86aedc5413c5797
The shifted boundary method (SBM) is an approximate domain method for boundary value problems, in the broader class of unfitted/embedded/immersed methods. It has proven to be quite efficient in handling problems with complex geometries, ranging from
Externí odkaz:
http://arxiv.org/abs/2006.00872