Numerical study of the drag force, interfacial area and mass transfer in bubbles in a vertical pipe

Balcázar-Arciniega, Néstor; Rigola, Joaquim; Pérez-Segarra, Carlos D.; Oliva, Assensi

doi:10.1016/j.cej.2024.153124

Chemical Engineering Journal

2024

DOI: 10.1016/j.cej.2024.153124

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Numerical study of the drag force, interfacial area and mass transfer in bubbles in a vertical pipe

Néstor Balcázar-Arciniega,

Joaquim Rigola,

Carlos D. Pérez-Segarra

et al.

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Cited by 2 publications

References 81 publications

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VOF-based modeling study of surface oscillation behavior and gas–liquid stirring dynamics in the bottom-blown reactors

Lai,

Yang,

Wang

2024

Chemical Engineering Journal

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VOF-based modeling study of surface oscillation behavior and gas–liquid stirring dynamics in the bottom-blown reactors

Lai,

Yang,

Wang

2024

Chemical Engineering Journal

View full text Add to dashboard Cite

Two-fluid model with physics-based inertial coupling for boiling flows

López-de-Bertodano,

Clausse

2024

Physics of Fluids

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The two-fluid model (TFM) has become the basis of numerical codes for engineering analysis of two-phase flows in most of the energy systems where boiling is present. However, the completeness of the model is still disputed because, in its usual form, the momentum conservation equations are elliptic, which, among other things, causes the solutions of short wavelength perturbations to have infinite growth rate. Recently, it has been shown that well-posed instances of the TFM can be derived using the variational principles. This paper presents a complete formulation of the TFM for boiling flows that renders the equations hyperbolic by incorporating physics-based inertial coupling between phases. The equations are cast into two canonical motion modes, namely, the center-of-mass flow and the relative motion between the fluids, which have different temporal and spatial scales, and so are easier to analyze independently. The influence of the inertial coupling parameters is analyzed in a case study of boiling channel oscillations.

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Numerical study of the drag force, interfacial area and mass transfer in bubbles in a vertical pipe

Cited by 2 publications

References 81 publications

VOF-based modeling study of surface oscillation behavior and gas–liquid stirring dynamics in the bottom-blown reactors

VOF-based modeling study of surface oscillation behavior and gas–liquid stirring dynamics in the bottom-blown reactors

Two-fluid model with physics-based inertial coupling for boiling flows

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