Treffer: Galilean invariance and stabilized methods for compressible flows

Title:
Galilean invariance and stabilized methods for compressible flows
Authors:
SCOVAZZI, G
Source:
Stabilized, multiscale and multiphysics methodsInternational journal for numerical methods in fluids. 54(6-8):757-778
Publisher Information:
Chichester: Wiley, 2007.
Publication Year:
2007
Physical Description:
print, 23 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, Champ écoulement, Flow pattern, Equation Euler Lagrange, Euler Lagrange equation, Ecuación Euler Lagrange, Fluide compressible, Compressible fluid, Fluido compresible, Génération maille, Mesh generation, Invariance, Modélisation, Modelling, Mécanique fluide numérique, Computational fluid dynamics, Méthode variationnelle, Variational methods, Méthode échelle multiple, Multiscale method, Método escala múltiple, Simulation numérique, Digital simulation, Stabilité numérique, Numerical stability, Transformation Galilée, Galilei transformations, Galilean transformations, SUPG methods, invariance, stabilized methods, variational multiscale methods
Time:
4711
Document Type:
Konferenz Conference Paper
File Description:
text
Language:
English
Author Affiliations:
1431 Computational Shock-and Multi-physics Department, Sandia National Laboratories, PO. Box 5800, MS 1319, Albuquerque, NM 87185-1319, United States
ISSN:
0271-2091
Access URL:
http://pascal-francis.inist.fr/vibad/index.php?action=search&terms=18888645
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.18888645
Database:
PASCAL Archive

Weitere Informationen

In a recent work (Comput. Methods Appl. Mech. Eng. 2007; 196(4-6):966-978), it was observed that lack of Galilean invariance led to catastrophic instabilities when stabilized methods were used in Lagrangian shock hydrodynamics computations. By means of an arbitrary Lagrangian-Eulerian (ALE) formulation, Galilean invariant SUPG operators were consistently derived in (Comput. Methods Appl. Mech. Eng. 2007; 196(4-6):1108-1132), and their Lagrangian and Eulerian limits were compared to the most commonly used stabilized formulations. In the particular case of Eulerian meshes, it was shown that most of the SUPG operators designed to date for compressible flow computations are not invariant. However, due to the significant overhead of algebraic manipulations, the use in (Comput. Methods Appl. Mech. Eng. 2007; 196(4-6): 1108-1132) of the referential form of the ALE equations made the presentation of the main ideas quite involved. The present paper addresses this particular issue, since the invariance analysis is presented with the aid of the intuitive current configuration reference frame, more familiar to computational fluid dynamicists.