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Axial developments of interfacial area and void concentration profiles in subcooled boiling flow of water [PDF]
International Journal of Heat and Mass Transfer, 2009 Axial developments of the local void fraction, interfacial area concentration and bubble Sauter mean diameter were measured in subcooled boiling flow of water in a vertical internally heated annulus using the double-sensor conductivity probe technique.
Hyun-Sik Park +2 more
exaly +3 more sources
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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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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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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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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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Interfacial area concentration in gas–liquid bubbly to churn-turbulent flow regime
International Journal of Heat and Fluid Flow, 2012Abstract There are very few established correlations to predict the interfacial area concentration beyond the bubbly flow regime in cap-slug and churn-turbulent flow regimes. Present study shows a systematic approach to estimate the interfacial area concentration in bubbly, cap-slug and churn-turbulent flow regimes.
Takashi Hibiki
exaly +2 more sources
Nuclear Engineering and Design, 2001
The interfacial area concentration (IAC) is one of the most important parameters in the two-fluid model for two-phase flow analysis. The purpose of this study is to develop the local IAC measuring method by using the five-sensor conductivity probe. In this paper, the mathematical approach of the five-sensor conductivity probe method for measuring the ...
D.J. Euh +5 more
openaire +1 more source
The interfacial area concentration (IAC) is one of the most important parameters in the two-fluid model for two-phase flow analysis. The purpose of this study is to develop the local IAC measuring method by using the five-sensor conductivity probe. In this paper, the mathematical approach of the five-sensor conductivity probe method for measuring the ...
D.J. Euh +5 more
openaire +1 more source
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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Chemical Engineering Science, 2015
Abstract Two phase flows exist as a part of many industrial processes, including chemical processes, nuclear reactor systems, and heat exchangers. In all of these applications the interfacial area concentration is an important parameter for evaluating the interactions between the phases, including drag forces, heat transfer or chemical reaction rates.
Takashi Hibiki, J P Schlegel
exaly +2 more sources
Abstract Two phase flows exist as a part of many industrial processes, including chemical processes, nuclear reactor systems, and heat exchangers. In all of these applications the interfacial area concentration is an important parameter for evaluating the interactions between the phases, including drag forces, heat transfer or chemical reaction rates.
Takashi Hibiki, J P Schlegel
exaly +2 more sources