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作者:Giuseppe Pitton , Gianluigi Rozza
来源:[J].Journal of Scientific Computing(IF 1.71), 2017, Vol.73 (1), pp.157-177
摘要:In this paper we apply a reduced basis framework for the computation of flow bifurcation (and stability) problems in fluid dynamics. The proposed method aims at reducing the complexity and the computational time required for the construction of bifurcation and stability diagrams....
作者:Gianluigi Rozza , Sonia Ippolito ...
来源:[J].Biomechanics and Modeling in Mechanobiology(IF 3.331), 2017, Vol.16 (4), pp.1373-1399
摘要:A fast computational framework is devised to the study of several configurations of patient-specific coronary artery bypass grafts. This is especially useful to perform a sensitivity analysis of the hemodynamics for different flow conditions occurring in native coronary arte...
作者:Efthymios N. Karatzas , Francesco Ballarin , Gianluigi Rozza
来源:[J].Computers and Mathematics with Applications(IF 2.069), 2020, Vol.79 (3), pp.833-851
摘要:Abstract(#br)This work presents a reduced order modeling technique built on a high fidelity embedded mesh finite element method. Such methods, and in particular the CutFEM method, are attractive in the generation of projection-based reduced order models thanks to their capabiliti...
作者:... Alessandro Corsini , Simona Perotto , Gianluigi Rozza
来源:[J].Computers and Fluids(IF 1.467), 2019, Vol.179, pp.702-703
摘要:Abstract(#br)This special issue presents contributions from the semi-plenary lecturers of the Nineteenth International Conference on Finite Elements in Flow Problems held in Rome, Italy, on 5–7 April 2017. The papers provide an overview of the current developments in the van...
作者:Giuseppe Pitton , Annalisa Quaini , Gianluigi Rozza
来源:[J].Journal of Computational Physics(IF 2.138), 2017, Vol.344, pp.534-557
摘要:Abstract(#br)We focus on reducing the computational costs associated with the hydrodynamic stability of solutions of the incompressible Navier–Stokes equations for a Newtonian and viscous fluid in contraction–expansion channels. In particular, we are interested in studying s...
作者:Michele Girfoglio , Annalisa Quaini , Gianluigi Rozza
来源:[J].Computers and Fluids(IF 1.467), 2019, Vol.187, pp.27-45
摘要:Abstract(#br)We consider a Leray model with a nonlinear differential low-pass filter for the simulation of incompressible fluid flow at moderately large Reynolds number (in the range of a few thousands) with under-refined meshes. For the implementation of the model, we adopt the ...
作者:... Leo Nouveau , Guglielmo Scovazzi , Gianluigi Rozza
来源:[J].Computer Methods in Applied Mechanics and Engineering(IF 2.617), 2019, Vol.347, pp.568-587
摘要:Abstract(#br)We propose a model order reduction technique integrating the Shifted Boundary Method (SBM) with a POD-Galerkin strategy. This approach allows to deal with complex parametrized domains in an efficient and straightforward way. The impact of the proposed approach is thr...
作者:Giovanni Stabile , Gianluigi Rozza
来源:[J].Computers and Fluids(IF 1.467), 2018, Vol.173
摘要:Abstract(#br)In this work a stabilised and reduced Galerkin projection of the incompressible unsteady Navier–Stokes equations for moderate Reynolds number is presented. The full-order model, on which the Galerkin projection is applied, is based on a finite volumes approximat...
作者:... Annalisa Quaini , Gianluigi Rozza , Max Gunzburger
来源:[J].Computer Methods in Applied Mechanics and Engineering(IF 2.617), 2019, Vol.351, pp.379-403
摘要:Abstract(#br)Reduced-order modeling (ROM) commonly refers to the construction, based on a few solutions (referred to as snapshots) of an expensive discretized partial differential equation (PDE), and the subsequent application of low-dimensional discretizations of partial differe...
作者:... Antonio Cammi , Lelio Luzzi , Gianluigi Rozza
来源:[J].Applied Mathematical Modelling(IF 1.706), 2017, Vol.46, pp.263-284
摘要:Abstract(#br)In the control field, the study of the system dynamics is usually carried out relying on lumped-parameter or one-dimensional modelling. Even if these approaches are well suited for control purposes since they provide fast-running simulations and are easy to line...

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