Summary
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.
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Details
- Original title: Experimental and numerical investigation of two-phase flow through enlarging singularity.
- Record ID : 30006794
- Languages: English
- Source: 2012 Purdue Conferences. 14th International Refrigeration and Air-Conditioning Conference at Purdue.
- Publication date: 2012/07/16
Links
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Indexing
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Themes:
Thermodynamic measurements;
Two-phase flow - Keywords: Two-phase flow; Horizontal tube; Geometry; Gas; Channel; Measurement; Liquid; Simulation
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An experimental study of two-phase pressure dro...
- Author(s) : CHEN X., ZHANG Q., XUE R., et al.
- Date : 2016/06/22
- Languages : English
- Source: 1st IIR International Conference of Cryogenics and Refrigeration Technology (ICCRT 2016). Proceedings: Bucharest, Romania, June 22-25, 2016.
- Formats : PDF
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Experimental study on gas-liquid flow distribut...
- Author(s) : NODA N., HIROTA M., TSUCHIYA T., et al.
- Date : 2015/08/16
- Languages : English
- Source: Proceedings of the 24th IIR International Congress of Refrigeration: Yokohama, Japan, August 16-22, 2015.
- Formats : PDF
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Pressure drop of two-phase flow through horizon...
- Author(s) : ESKIN N., DENIZ E.
- Date : 2012/07/16
- Languages : English
- Source: 2012 Purdue Conferences. 14th International Refrigeration and Air-Conditioning Conference at Purdue.
- Formats : PDF
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Flow patterns of vertical and horizontal adiaba...
- Author(s) : BUSCHER S.
- Date : 2019/08/24
- Languages : English
- Source: Proceedings of the 25th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
- Formats : PDF
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APPROCHE UNIFIEE DU CALCUL D'ECOULEMENTS MONOPH...
- Author(s) : FLATT R.
- Date : 1989
- Languages : French
- Source: Entropie - vol. 25 - n. 149
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