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Modeling and measurement of interfacial area concentration in two-phase flow
Nuclear Engineering and Design, 2010Abstract This paper presents experimental and modeling approaches in characterizing interfacial structures in gas–liquid two-phase flow. For the modeling of the interfacial structure characterization, the interfacial area transport equation proposed earlier has been studied to provide a dynamic and mechanistic prediction tool for two-phase flow ...
Sidharth Paranjape +2 more
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Measurement of interfacial area concentration in subcooled liquid-vapour flow
Nuclear Engineering and Design, 1994Abstract In two-fluid modelling, accurate prediction of the interfacial transport of mass, momentum and energy is required. Experiments were carried out to obtain a database for the development of interfacial transport models, or correlations, for subcooled water-steam flow in vertical conduits.
O. Zeitoun, M. Shoukri, V. Chatoorgoon
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Local formulation and measurements of interfacial area concentration in two-phase flow
International Journal of Multiphase Flow, 1986The local instantaneous formulation of the interfacial area concentration has been introduced based on the concept of a distribution. Using a delta function and the interface equation, the local instantaneous interfacial area concentration has been defined.
Kataoka, Isao +2 more
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Modeling interfacial area concentration in bubbly flow
Physics of FluidsAccurate mass, momentum, and energy transfer predictions through gas and liquid interfaces are critical in simulating gas–liquid two-phase flow dynamics. Since the interfacial transfer rates depend on the interfacial area concentration (IAC), it is essential to model the IAC accurately for robust two-phase flow analyses.
Kelei Song, Takashi Hibiki
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Numerical evaluation of interfacial area concentration using the immiscible lattice gas
Nuclear Engineering and Design, 1999Abstract The phase separation in a Couette flow and the mixing of two phases in a cavity flow are simulated numerically using the immiscible lattice gas, which is one of the discrete methods of using particles to simulate two-phase flows. The interface is defined as the lattice sites between two phases, and the interfacial area concentration is ...
Tadashi Watanabe, Kenichi Ebihara
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Benchmarking of the five-sensor probe method for a measurement of an interfacial area concentration
Experiments in Fluids, 2006Interfacial area concentration (IAC) is one of the most important parameters in the two-phase flow models. Five-sensor probe method is a useful measurement technique to measure an IAC. It is essentially based on the four-sensor probe method but it is improved by adapting one more sensor.
D. J. Euh, B. J. Yun, C. H. Song
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Volume 15: Student Paper Competition, 2022
Abstract Pool scrubbing is one of the severe accidents (SA) countermeasures in nuclear power plants. In pool scrubbing, gas containing Fission Products (FPs) generated in the reactor during SA is passed through the pool water in the suppression chamber to move FPs into the pool water and prevent them from being released into the ...
Sasuke Kadoma +3 more
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Abstract Pool scrubbing is one of the severe accidents (SA) countermeasures in nuclear power plants. In pool scrubbing, gas containing Fission Products (FPs) generated in the reactor during SA is passed through the pool water in the suppression chamber to move FPs into the pool water and prevent them from being released into the ...
Sasuke Kadoma +3 more
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Closures for the Bubble Size Distribution and Interfacial Area Concentration
2015This chapter is devoted to the presentation of the closure laws for the interfacial area transport equation and other multi-size bubble models. Considering first the single size case, the different forms of the interfacial area transport equation are recalled and their closure laws are reviewed.
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On thermodynamic closures for two-phase flow with interfacial area concentration transport equation
International Journal of Multiphase Flow, 2005Abstract The present work is a part of a modelling of forest fires fighting by aerial means. In this paper, we study different kind of closures for modelling two-phase flows with an almost “infinite range” of scales. Since theories like homogenization are not, in this case, relevant for obtaining the equivalent medium equations, the averaging method ...
Olivier Séro-Guillaume, Nicolas Rimbert
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Langmuir, 1990
Concentrated emulsions with 0.7 < φ < 0.9, where φ=volume fraction of internal phase, may be produced, in principle, through polydisperse packing of droplets and/or through distortion of the same. By use of an ideal fcc configuration, it is shown that a volume fraction as high as 0.89 may be achieved with spheres of three sizes.
Ashok K. Das, Pushpito K. Ghosh
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Concentrated emulsions with 0.7 < φ < 0.9, where φ=volume fraction of internal phase, may be produced, in principle, through polydisperse packing of droplets and/or through distortion of the same. By use of an ideal fcc configuration, it is shown that a volume fraction as high as 0.89 may be achieved with spheres of three sizes.
Ashok K. Das, Pushpito K. Ghosh
openaire +1 more source