• Dynamic subscales in the finit...

Treffer: Dynamic subscales in the finite element approximation of thermally coupled incompressible flows

Title:
Dynamic subscales in the finite element approximation of thermally coupled incompressible flows
Authors:
CODINA, Ramon, PRINCIPE, Javier
Source:
Stabilized, multiscale and multiphysics methodsInternational journal for numerical methods in fluids. 54(6-8):707-730
Publisher Information:
Chichester: Wiley, 2007.
Publication Year:
2007
Physical Description:
print, 22 ref
Original Material:
INIST-CNRS
Subject Terms:
Mechanics acoustics, Mécanique et acoustique, Sciences exactes et technologie, Exact sciences and technology, Physique, Physics, Domaines classiques de la physique (y compris les applications), Fundamental areas of phenomenology (including applications), Mécanique des fluides, Fluid dynamics, Méthodes de calcul en mécanique des fluides, Computational methods in fluid dynamics, Stabilité hydrodynamique, Hydrodynamic stability, Instabilité sous l'effet de la poussée hydrostatique, Buoyancy-driven instability, Ecoulements turbulents, convection et transfert de chaleur, Turbulent flows, convection, and heat transfer, Convection et transfert de chaleur, Convection and heat transfer, Convection naturelle, Natural convection, Ecoulement Poiseuille, Poiseuille flow, Equation Boussinesq, Boussinesq equations, Equation Navier Stokes, Navier-Stokes equations, Fluide incompressible, Incompressible fluid, Fluido incompresible, Instabilité convective, Convective instabilities, Modélisation, Modelling, Mécanique fluide numérique, Computational fluid dynamics, Méthode sous maille, Subgrid scale method, Metodo submalla, Méthode élément fini, Finite element method, Simulation numérique, Digital simulation, Stabilité numérique, Numerical stability, Transfert chaleur, Heat transfer, 4720B, 4727T, dynamic subgrid scales, stabilized finite-element methods, thermally coupled flows
Time:
4711
Document Type:
Konferenz Conference Paper
File Description:
text
Language:
English
Author Affiliations:
Universitat Politècnica de Catalunya, Jordi Girona 1-3, Edifici Cl, Barcelona 08034, Spain
ISSN:
0271-2091
Access URL:
http://pascal-francis.inist.fr/vibad/index.php?action=search&terms=18888642
Rights:
Copyright 2007 INIST-CNRS
CC BY 4.0
Sauf mention contraire ci-dessus, le contenu de cette notice bibliographique peut être utilisé dans le cadre d’une licence CC BY 4.0 Inist-CNRS / Unless otherwise stated above, the content of this bibliographic record may be used under a CC BY 4.0 licence by Inist-CNRS / A menos que se haya señalado antes, el contenido de este registro bibliográfico puede ser utilizado al amparo de una licencia CC BY 4.0 Inist-CNRS
Notes:
Physics: fluid mechanics
Accession Number:
edscal.18888642
Database:
PASCAL Archive

Weitere Informationen

In this paper, we propose a variational multiscale finite-element approximation for the incompressible Navier-Stokes equations using the Boussinesq approximation to model thermal coupling. The main feature of the formulation in contrast to other stabilized methods is that we consider the subscales as transient. They are solution of a differential equation in time that needs to be integrated. Likewise, we keep the effect of the subscales both in the nonlinear convective terms of the momentum and temperature equations and, if required, in the thermal coupling term of the momentum equation. Apart from presenting the main properties of the formulation, we also discuss some computational aspects such as the linearization strategy or the way to integrate in time the equation for the subscales.