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Open AccessJournal ArticleDOI

One-dimensional drift-flux model and constitutive equations for relative motion between phases in various two-phase flow regimes

TLDR
In this article, the kinematic constitutive equation for the drift velocity has been studied for various two-phase flow regimes, and a comparison of the model with various experimental data over various flow regimes and a wide range of flow parameters shows a satisfactory agreement.
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This article is published in International Journal of Heat and Mass Transfer.The article was published on 2003-12-01 and is currently open access. It has received 799 citations till now. The article focuses on the topics: Multiphase flow & Flow velocity.

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Citations
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Some characteristics of air-water two-phase flow in small diameter vertical tubes

TL;DR: In this article, the authors measured air-water flows in capillary tubes with inner diameters in the range from 1 to 4 mm and found that the boundary between flow regimes was predicted well by Mishima-Ishii's model.
Journal ArticleDOI

Two-fluid model and hydrodynamic constitutive relations

TL;DR: In this article, a two-fluid formulation for two-phase flow analyses is presented, where a fully threedimensional model is obtained from the time averaging, whereas the one-dimensional model was developed from the area averaging.
Journal ArticleDOI

Flow regime transition criteria for upward two-phase flow in vertical tubes

TL;DR: In this paper, new flow-regime transition criteria for upward gas-liquid flow in vertical tubes have been developed considering the mechanisms of flowregime transitions, which can be compared to existing criteria and experimental data under steady-state and fully developed flow conditions by using relative velocity correlations.
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Eulerian two-phase flow theory applied to fluidization

TL;DR: In this article, a general classification of two-phase flows and a number of possible ways to formulate two-fluid models are discussed, and a general procedure to develop such a model is presented.
Journal ArticleDOI

Interfacial area and nucleation site density in boiling systems

TL;DR: In this article, a constitutive relation for active nucleation site density is developed in pool boiling and extended to forced convective nucleate boiling, which is in relatively good agreement with direct measurements available in the literature.
References
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Journal Article

Bubbles, Drops, and Particles

TL;DR: In this paper, the authors evaluated the applicability of the standard κ-ϵ equations and other turbulence models with respect to their applicability in swirling, recirculating flows.
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The Viscosity of Concentrated Suspensions and Solutions

TL;DR: In this paper, an expression for the viscosity of solutions and suspensions of finite concentration is derived by considering the effect of the addition of one solute-molecule to an existing solution, which is considered as a continuous medium.