Published September 1988 | Version v1
Report Open

Pseudo-viscosities and Riemann problems

Creators

  • 1. Centre d'Etudes de Limeil-Valenton, Departement de Mathematiques Appliquees, Service Mathematiques et Codes Numeriques, BP No. 27 94190 Villeneuve st Georges (France)

Description

We use the close relationship between pseudo-viscosity and Riemann problem solution in order to define new forms of pseudo-viscosity terms. Numerical results are shown. (author)

Abstract (French)

Nous montrons, dans le cas du schema de Richtmyer en coordonnees de Lagrange, les liens qui existent entre la methode classique de pseudoviscosite et l'utilisation de solutions de problemes de Riemann. Nous nous sommes inspire de l'interpretation de la pseudoviscosite par Kuropatenko. Nous proposons differents schemas, ou les termes de pseudoviscosites sont calcules a partir de solutions de problemes de Riemann. Nous presentons les resultats numeriques obtenus sur le probleme du tube a choc. (auteur)

Files

49089198.pdf

Files (288.1 kB)

Name Size Download all
md5:ee604c6b8e32cf97c686c41b20822175
288.1 kB Preview Download

Additional details

Additional titles

Original title (French)
Pseudoviscosites et problemes de Riemann

Publishing Information

Imprint Pagination
14 p.
Report number
CEA-N--2579

INIS

Country of Publication
France
Country of Input or Organization
France
INIS RN
49089198
Subject category
S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; S97: MATHEMATICAL METHODS AND COMPUTING;
Descriptors DEI
DENSITY; DIFFUSION; HYDRODYNAMICS; INTERPOLATION; ITERATIVE METHODS; MESH GENERATION; PRESSURE GRADIENTS; RANKINE-HUGONIOT EQUATIONS; RIEMANN FUNCTION; SHOCK TUBES; SHOCK WAVES; VELOCITY
Descriptors DEC
CALCULATION METHODS; EQUATIONS; FLUID MECHANICS; FUNCTIONS; MATHEMATICAL SOLUTIONS; MECHANICS; NUMERICAL SOLUTION; PHYSICAL PROPERTIES

Optional Information

Notes
5 refs.; Available from the INIS Liaison Officer for France, see the INIS website for current contact and E-mail addresses