Search Results - "Girfoglio, Michele"
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Validation of an OpenFOAM®-based solver for the Euler equations with benchmarks for mesoscale atmospheric modeling
Published in AIP advances (01-05-2023)“…Within OpenFOAM, we develop a pressure-based solver for the Euler equations written in conservative form using density, momentum, and total energy as…”
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2
Pressure Stabilization Strategies for a LES Filtering Reduced Order Model
Published in Fluids (Basel) (01-09-2021)“…We present a stabilized POD–Galerkin reduced order method (ROM) for a Leray model. For the implementation of the model, we combine a two-step algorithm called…”
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Cellulose Degradation by Sulfolobus solfataricus Requires a Cell-Anchored Endo-β-1-4-Glucanase
Published in Journal of Bacteriology (01-09-2012)“…A sequence encoding a putative extracellular endoglucanase (sso1354) was identified in the complete genome sequence of Sulfolobus solfataricus. The encoded…”
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4
spreadable, non-integrative and high copy number shuttle vector for Sulfolobus solfataricus based on the genetic element pSSVx from Sulfolobus islandicus
Published in Nucleic acids research (01-10-2006)“…The pSSVx genetic element from Sulfolobus islandicus REY15/4 is a hybrid between a plasmid and a fusellovirus, able to be maintained in non-integrative form…”
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A POD-Galerkin reduced order model for a LES filtering approach
Published in Journal of computational physics (01-07-2021)“…•Development of a POD-Galerkin ROM for an algorithm (EF) implementing the Leray model.•Combination of a ROM spatial filter using an explicit lengthscale with a…”
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A hybrid projection/data-driven reduced order model for the Navier-Stokes equations with nonlinear filtering stabilization
Published in Journal of computational physics (01-08-2023)“…We develop a Reduced Order Model (ROM) for the Navier-Stokes equations with nonlinear filtering stabilization. Our approach, that can be interpreted as a Large…”
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The Neural Network shifted-proper orthogonal decomposition: A machine learning approach for non-linear reduction of hyperbolic equations
Published in Computer methods in applied mechanics and engineering (15-03-2022)“…Models with dominant advection always posed a difficult challenge for projection-based reduced order modelling. Many methodologies that have recently been…”
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A novel Large Eddy Simulation model for the Quasi-Geostrophic equations in a Finite Volume setting
Published in Journal of computational and applied mathematics (15-01-2023)“…We present a Large Eddy Simulation (LES) approach based on a nonlinear differential low-pass filter for the simulation of two-dimensional barotropic flows with…”
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A POD-Galerkin reduced order model for the Navier–Stokes equations in stream function-vorticity formulation
Published in Computers & fluids (15-08-2022)“…We develop a Proper Orthogonal Decomposition (POD)-Galerkin based Reduced Order Model (ROM) for the efficient numerical simulation of the parametric…”
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10
A Finite Volume approximation of the Navier-Stokes equations with nonlinear filtering stabilization
Published in Computers & fluids (15-06-2019)“…•Use of a Leray model with a nonlinear differential low-pass filter.•Use of a three-step algorithm Evolve-Filter-Relax (EFR) for the…”
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Consistency of the full and reduced order models for evolve‐filter‐relax regularization of convection‐dominated, marginally‐resolved flows
Published in International journal for numerical methods in engineering (30-07-2022)“…Numerical stabilization is often used to eliminate (alleviate) the spurious oscillations generally produced by full order models (FOMs) in under‐resolved or…”
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A linear filter regularization for POD-based reduced-order models of the quasi-geostrophic equations
Published in Comptes rendus. Mecanique (01-01-2023)“…We propose a regularization for reduced-order models (ROMs) of the quasi-geostrophic equations (QGE) to increase accuracy when the proper orthogonal…”
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Linear and nonlinear filtering for a two-layer quasi-geostrophic ocean model
Published in Applied mathematics and computation (01-03-2025)“…Although the two-layer quasi-geostrophic equations (2QGE) are a simplified model for the dynamics of a stratified, wind-driven ocean, their numerical…”
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How recombinant swollenin from Kluyveromyces lactis affects cellulosic substrates and accelerates their hydrolysis
Published in Biotechnology for biofuels (23-09-2011)“…BACKGROUND: In order to generate biofuels, insoluble cellulosic substrates are pretreated and subsequently hydrolyzed with cellulases. One way to pretreat…”
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Filter stabilization for the mildly compressible Euler equations with application to atmosphere dynamics simulations
Published in Computers & fluids (15-11-2023)“…We present a filter stabilization technique for the mildly compressible Euler equations that relies on a linear or nonlinear indicator function to identify the…”
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16
Hyperthermophilic endoglucanase for in planta lignocellulose conversion
Published in Biotechnology for biofuels (28-08-2012)“…BACKGROUND: The enzymatic conversion of lignocellulosic plant biomass into fermentable sugars is a crucial step in the sustainable and environmentally friendly…”
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A non-intrusive data-driven reduced order model for parametrized CFD-DEM numerical simulations
Published in Journal of computational physics (15-10-2023)“…The investigation of fluid-solid systems is very important in a lot of industrial processes. From a computational point of view, the simulation of such systems…”
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Data-Driven Reduced Order Modelling for Patient-Specific Hemodynamics of Coronary Artery Bypass Grafts with Physical and Geometrical Parameters
Published in Journal of scientific computing (01-01-2023)“…In this work the development of a machine learning-based Reduced Order Model (ROM) for the investigation of hemodynamics in a patient-specific configuration of…”
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A comparison of data-driven reduced order models for the simulation of mesoscale atmospheric flow
Published in Finite elements in analysis and design (01-01-2024)“…The simulation of atmospheric flows by means of traditional discretization methods remains computationally intensive, hindering the achievement of high…”
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A brief review of reduced order models using intrusive and non‐intrusive techniques
Published in Proceedings in applied mathematics and mechanics (12-11-2024)“…Abstract Reduced Order Models (ROMs) have gained a great attention by the scientific community in the last years thanks to their capabilities of significantly…”
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