Résumé
Gas-liquid flow is extensively used in industrial systems such as power generation units, cooling and heating systems (i.e. condensers, evaporators and manifolds), safety valves, etc. These systems generally have complex geometries composed by singularities like expansion, contraction, bends and orifices. Thus two-phase flow characteristics through these singularities should be identified in order to be used in designing of the systems. In this study, experimental and numerical investigations on characteristics of adiabatic air-water flow through a horizontal channel having smooth expansion are performed. Internal diameter of the channel expands from 40 to 50 mm with an angle of 9°. Flow rate for water is constant at 3 l/s while that for air is taken as 30, 50 and 60 l/min. In the experiments, effects of air flow rate, thus the volumetric void fraction, and internal diameter of the channel on hydrodynamic characteristics of two-phase flow (i.e. local void fraction) are examined. Measurements are carried out by dual optical probe at different axial positions upstream and downstream the singularity. In addition to the measurements, the flow is numerically modeled via commercial software, GAMBIT (v. 2.3.16) and ANSYS FLUENT (v. 12). Eulerian (Dispersed) model is employed in the simulations. According to the comparison between the numerical results and the experimental data, good agreement is obtained.
Documents disponibles
Format PDF
Pages : 9 p.
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 : Experimental and numerical investigation of two-phase flow through enlarging singularity.
- Identifiant de la fiche : 30006794
- Langues : Anglais
- Source : 2012 Purdue Conferences. 14th International Refrigeration and Air-Conditioning Conference at Purdue.
- Date d'édition : 16/07/2012
Liens
Voir d'autres communications du même compte rendu (195)
Voir le compte rendu de la conférence
Indexation
-
Thèmes :
Mesures thermodynamiques;
Ecoulement diphasique - Mots-clés : Écoulement diphasique; Tube horizontal; Géometrie; Gaz; Canal; Mesure; Liquide; Simulation
-
An experimental study of two-phase pressure dro...
- Auteurs : CHEN X., ZHANG Q., XUE R., et al.
- Date : 22/06/2016
- Langues : Anglais
- Source : 1st IIR International Conference of Cryogenics and Refrigeration Technology (ICCRT 2016). Proceedings: Bucharest, Romania, June 22-25, 2016.
- Formats : PDF
Voir la fiche
-
Study of liquid helium cavitation flow through ...
- Auteurs : ISHII T., MURAKAMI M.
- Date : 22/07/2002
- Langues : Anglais
- Source : Proceedings of the nineteenth International Cryogenic Engineering Conference. ICEC 19.
Voir la fiche
-
Pressure drop of two-phase flow through horizon...
- Auteurs : ESKIN N., DENIZ E.
- Date : 16/07/2012
- Langues : Anglais
- Source : 2012 Purdue Conferences. 14th International Refrigeration and Air-Conditioning Conference at Purdue.
- Formats : PDF
Voir la fiche
-
The two-phase cocurrent downflow of liquid nitr...
- Auteurs : PAVLENKO A. N., PECHERKIN N. I., CHEKHOVICH V. Yu., et al.
- Date : 2003
- Langues : Anglais
- Source : J. Eng. Thermophys. - vol. 11 - n. 4
Voir la fiche
-
Schémas de l'écoulement diphasique vapeur-liqui...
- Auteurs : MATSUSE Y., NAKATSURU T., ENOKI K., et al.
- Date : 2014
- Langues : Japonais
- Source : Transactions of the Japan Society of Refrigerating and Air Conditioning Engineers - vol. 31 - n. 1
Voir la fiche