Simulation numérique de l'écoulement du frigorigène dans des soupapes à lamelles multiples basée sur des modèles de simulation tourbillonaires (LES).
Numerical simulation of fluid flow through valve reeds based on large eddy simulation models (LES).
Auteurs : RIGOLA J., LEHMKUHL O., PÉREZ-SEGARRA C. D., et al.
Résumé
One of the most critical aspects on hermetic reciprocating compressors design is to know in deep and clearly understand how the fluid flows through their valve reeds. In that sense, the use of CFD&HT codes, together with experimental validation tests are the best way to advance in this purpose. The use of TermoFluids code developed in a spin-off created by different researchers of CTTC Group has the advantage of knowing the whole CFD&HT code, working together with CFD developers, and using a new parallel, unstructured and object oriented CFD&HT code for turbulent industrial problems on low cost PC cluster. The aim of this paper is to study the fluid flow behaviour through the valve at different Reynolds numbers and valve displacements, showing the numerical results obtained using only a symmetry-preserving discretization vs. considering LES for 2D and 2D periodical conditions. The studied cases vary from laminar to turbulent flow, almost to be considered incompressible and lower supersonic conditions and/or chocked flow. The numerical results allow knowing a numerical analysis of the effective force and flow area for the studied cases.
Documents disponibles
Format PDF
Disponible
Prix public
20 €
Prix membre*
15 €
* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)
Détails
- Titre original : Numerical simulation of fluid flow through valve reeds based on large eddy simulation models (LES).
- Identifiant de la fiche : 2009-0108
- Langues : Anglais
- Source : 2008 Purdue Conferences. 19th International Compressor Engineering Conference at Purdue & 12th International Refrigeration and Air-Conditioning Conference at Purdue [CD-ROM].
- Date d'édition : 14/07/2008
Liens
Voir d'autres communications du même compte rendu (125)
Voir le compte rendu de la conférence
Indexation
- Thèmes : Compresseurs
- Mots-clés : Fluide; Reynolds; Système à compression; Soupape; Simulation; Paramètre; Écoulement; Compresseur hermétique; Compresseur à piston
-
Experimental analysis of the fluid structure in...
- Auteurs : GASCHE J. L., ARANTES D. M., ANDREOTTI T.
- Date : 14/07/2014
- Langues : Anglais
- Source : 2014 Purdue Conferences. 22nd International Compressor Engineering Conference at Purdue.
- Formats : PDF
Voir la fiche
-
Analytical and experimental study of discharge ...
- Auteurs : OLIVEIRA S. J., REAL M. A.
- Date : 12/07/2010
- Langues : Anglais
- Source : 2010 Purdue Conferences. 20th International Compressor Engineering Conference at Purdue.
- Formats : PDF
Voir la fiche
-
Fluid-structure interaction of a reed type valve.
- Auteurs : GONZALEZ I., LEHMKUHL O., NASERI A., et al.
- Date : 11/07/2016
- Langues : Anglais
- Source : 2016 Purdue Conferences. 23rd International Compressor Engineering Conference at Purdue.
- Formats : PDF
Voir la fiche
-
Large eddy simulation model assessment of the t...
- Auteurs : ESTRUCH O., LEHMKUHL O., RIGOLA J., et al.
- Date : 02/09/2013
- Langues : Anglais
- Source : Compressors 2013: 8th International Conference on Compressors and Coolants.
- Formats : PDF
Voir la fiche
-
Influence of the valve-seat gap on the dynamics...
- Auteurs : BIANCOLIN MOIMAS G., SEVERINO ABREGO A. L., DOMINGUES BUENO D., GASCHE J. L.
- Date : 10/2020
- Langues : Anglais
- Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 118
- Formats : PDF
Voir la fiche