Results 211 to 220 of about 68,560 (248)
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Interfacial area concentration in steady fully-developed bubbly flow
International Journal of Heat and Mass Transfer, 2001Abstract Although bubbly flows are encountered in various engineering fields, there are very few established theoretical foundations on the interfacial area concentration, which have been supported by extensive experimental data. From this point of view, a simple equation for the interfacial area concentration under steady fully-developed bubbly flow
Takashi Hibiki, Mamoru Ishii
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Databases of interfacial area concentration in gas–liquid two-phase flow
Progress in Nuclear Energy, 2014Abstract Extensive literature review has been performed to provide the most updated information on local interfacial area measurements. The review begins with a brief introduction of various available experimental techniques which have been utilized for interfacial area measurement.
Takashi Hibiki
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Prediction of interfacial area concentration in a small diameter round pipe
International Journal of Heat and Mass Transfer, 2019Abstract Accurate prediction of interfacial area concentration (IAC) is of great importance in the two-fluid model. As a promising IAC prediction method, the interfacial area transport equation (IATE) was developed to dynamically predict the IAC and to eliminate the shortcomings of the flow regime-based IAC correlations, which is currently used in ...
Zhuoran Dang +2 more
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An experimental study on local interfacial area concentration using a double-sensor probe
International Journal of Heat and Mass Transfer, 2005Abstract Interfacial area concentration is an important parameter in modeling the interfacial transfer terms in the two-fluid model. In this paper, the interfacial area concentration, void fraction, and bubble Sauter mean diameter for air–water bubbly flow through a vertical transparent pipe with 40 mm internal diameter was investigated ...
Liejin Guo, Ximin Zhang
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Interfacial area concentration and bubble size distribution measurement using tomography technique
International Journal of Multiphase Flow, 2021Abstract Interfacial area concentration (IAC) and bubble size distribution (BSD) are two important parameters in two-phase flow simulations. High-speed tomography techniques, mainly including wire-mesh sensor and ultrafast X-ray imaging in this stage, are advanced measurement devices, which can measure the instantaneous phase distribution in the ...
Yao Xiao, Hengwei Zhang
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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
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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
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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
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International Journal of Multiphase Flow, 1999
Abstract The sensitivity study on a double-sensor conductivity probe for the measurement of local interfacial area concentration, has been carried out by considering the effects of bubble lateral motions and probe spacing. The measurable value was rigorously related to the local bubble interface velocity in the surface normal direction, and the ...
Q. Wu, M. Ishii
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Abstract The sensitivity study on a double-sensor conductivity probe for the measurement of local interfacial area concentration, has been carried out by considering the effects of bubble lateral motions and probe spacing. The measurable value was rigorously related to the local bubble interface velocity in the surface normal direction, and the ...
Q. Wu, M. Ishii
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Modeling local interfacial area concentration for adiabatic and boiling bubbly flows
Applied Thermal Engineering, 2023Somboon Rassame, Takashi Hibiki
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