Buscar
Mostrando ítems 1-10 de 13
Artículo
Error analysis of a residual-based stabilization-motivated POD-ROM for incompressible flows
(Elsevier, 2022-08-30)
This article presents error bounds for a velocity–pressure segregated POD reduced order model discretization of the Navier–Stokes equations. The stability is proven in L∞(L2) and energy norms for velocity, with bounds that ...
Artículo
Analysis of numerical stability of algebraic oceanic turbulent mixing layer models
(Elsevier, 2014-05-10)
In this paper, we study the stability of oceanic turbulent mixing layers by the finite element method with respect to perturbations of the data. We prove that the equilibria states depend continuously on the data, and ...
Artículo
Assessment of self-adapting local projection-based solvers for laminar and turbulent industrial flows
(Springer, 2018-06)
In this work, we study the performance of some local projection-based solvers in the Large Eddy Simulation (LES) of laminar and turbulent flows governed by the incompressible Navier–Stokes Equations (NSE). On one side, we ...
Artículo
A High-Order Local Projection Stabilization Method for Natural Convection Problems
(Springer, 2017-06-05)
In this paper, we propose a local projection stabilization (LPS) finite element method applied to numerically solve natural convection problems. This method replaces the projection-stabilized structure of standard LPS ...
Artículo
Modelling of surface and inner wall temperatures in the analysis of courtyard thermal performances in Mediterranean climates
(Taylor & Francis, 2021-01-17)
Courtyards are an effective passive strategy for improving the energy performance of buildings. However, there is a lack of accurate simulation tools for their thermal performance due to their complex thermodynamics. ...
Artículo
Analysis of a full space-time discretization of the Navier-Stokes equations by a local projection stabilization method
(Oxford University Press, 2016)
A finite element error analysis of a local projection stabilization (LPS) method for the time-dependent Navier–Stokes equations is presented. The focus is on the high-order term-by-term stabilization method that has one ...
Artículo
A cure for instabilities due to advection-dominance in POD solution to advection-diffusion-reaction equations
(Elsevier, 2021-01-15)
In this paper, we propose to improve the stabilized POD-ROM introduced in [48] to deal with the numerical simulation of advection-dominated advection-diffusion-reaction equations. In particular, we propose a three-stage ...
Artículo
On the existence and asymptotic stability of solutions for unsteady mixing-layer models
(AIMS, 2014-02-15)
We introduce in this paper some elements for the mathematical analysis of turbulence models for oceanic surface mixing layers. We consider Richardson-number based vertical eddy diffusion models. We prove the existence ...
Tesis Doctoral
Numerical modelling of turbulence by Richardson number-based and VMS models / Modelado numérico de la turbulencia mediante modelos de Richardson y de Multiescala Variacional
(2014-04-02)
La presente tesis aborda el modelado numérico de la turbulencia mediante modelos de Richardson y de Multiescala Variacional (VMS). En la primera parte, nos centramos en los modelos basados en el número de Richardson, que ...