Combining the Morris Method and Multiple Error Metrics to Assess Aquifer Characteristics and Recharge in the Lower Ticino Basin, in Italy

Autor: Emily A. Baker, Alessandro Cappato, Sara Todeschini, Lorenzo Tamellini, Giancarlo Sangalli, Alessandro Reali, Sauro Manenti

Groundwater flow model accuracy is often limited by the uncertainty in model parameters that characterize aquifer properties and aquifer recharge. Aquifer properties such as hydraulic conductivity can have an uncertainty spanning orders of magnitude.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7d0630d87f65a2bc7fd8696e260ade1f
http://arxiv.org/abs/2206.01990

Explicit high-order generalized-\alpha methods for isogeometric analysis of structural dynamics

Autor: Pouria Behnoudfar, Gabriele Loli, Alessandro Reali, Giancarlo Sangalli, Victor M. Calo

Publikováno v: Computer Methods in Applied Mechanics and Engineering

We propose a new family of high-order explicit generalized-$\alpha$ methods for hyperbolic problems with the feature of dissipation control. Our approach delivers $2k,\, \left(k \in \mathbb{N}\right)$ accuracy order in time by solving $k$ matrix syst

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8cacd1dafd7d1c1e4c6e132eab74d6f2

Space–time least–squares isogeometric method and efficient solver for parabolic problems

Autor: Monica Montardini, Matteo Negri, Giancarlo Sangalli, Mattia Tani

Publikováno v: Mathematics of computation 89 (2020): 1193–1227. doi:10.1090/mcom/3471
info:cnr-pdr/source/autori:M. Montardini, M. Negri, G. Sangalli, and M. Tani/titolo:Space-time least-squares isogeometric method and efficient solver for parabolic problems/doi:10.1090%2Fmcom%2F3471/rivista:Mathematics of computation/anno:2020/pagina_da:1193/pagina_a:1227/intervallo_pagine:1193–1227/volume:89

In this paper, we propose a space-time least-squares isogeometric method to solve parabolic evolution problems, well suited for high-degree smooth splines in the space-time domain. We focus on the linear solver and its computational efficiency: thank

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a40060b935fe5cf36acf4c6d5e9807c9
https://doi.org/10.1090/mcom/3471

Smooth multi-patch discretizations in Isogeometric Analysis

Autor: Deepesh Toshniwal, Thomas J. R. Hughes, Thomas Takacs, Giancarlo Sangalli

Publikováno v: Geometric Partial Differential Equations-Part II ISBN: 9780444643056

With the aim of a seamless integration with Computer-Aided Design, Isogeometric Analysis has been proposed by Hughes et al. (2005) as a numerical technique for the solution of partial differential equations. Indeed, isogeometric analysis is based on

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::26994e88ca21cfcde0005341faa70358
https://doi.org/10.1016/bs.hna.2020.09.002

Isogeometric Methods for Free Boundary Problems

Autor: Filippo Remonato, Monica Montardini, Giancarlo Sangalli

Publikováno v: Lecture Notes in Computational Science and Engineering ISBN: 9783030498351

We present in detail three different quasi-Newton isogeometric algorithms for the treatment of free boundary problems. Two algorithms are based on standard Galerkin formulations, while the third is a fully-collocated scheme. With respect to standard

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::08ba68c870147fd192ac2fd99dea5c7d
https://doi.org/10.1007/978-3-030-49836-8_7