A Verification of the Two-Fluid Model with InterfacialInertial Coupling

"The two-fluid model (TFM) has become a foundational tool in numerical codes used for engineering analyses of two-phase flows in energy systems. However, its completeness remains a topic of debate because improper modeling of interfacial inertial coupling can render the momentum conservation eq...

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Autores principales: Ram, Raghav, López de Bertodano, Martín, Howard, James A., Clausse, Alejandro
Formato: Artículo de publicación periódica
Lenguaje:Inglés
Publicado: 2025
Materias:
MODELO DE DOS FLUIDOS, FLUJO BIFÁSICO, ACOPLAMIENTO INERCIAL, VERIFICACIÓN DE CÓDIGO, SOLUCIONES ANALÍTICAS
Acceso en línea:https://hdl.handle.net/20.500.14769/5115
https://doi.org/10.3390/fluids10100268
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Repositorio Institucional Instituto Tecnológico de Buenos Aires (ITBA) de Instituto Tecnológico de Buenos Aires (ITBA)
id I32-R138-20.500.14769-5115
record_format dspace
spelling I32-R138-20.500.14769-51152026-01-07T13:47:34Z A Verification of the Two-Fluid Model with InterfacialInertial Coupling Ram, Raghav López de Bertodano, Martín Howard, James A. Clausse, Alejandro MODELO DE DOS FLUIDOS, FLUJO BIFÁSICO, ACOPLAMIENTO INERCIAL, VERIFICACIÓN DE CÓDIGO, SOLUCIONES ANALÍTICAS "The two-fluid model (TFM) has become a foundational tool in numerical codes used for engineering analyses of two-phase flows in energy systems. However, its completeness remains a topic of debate because improper modeling of interfacial inertial coupling can render the momentum conservation equations elliptic. This issue leads to short wavelength perturbations growing at an infinite rate. This paper demonstrates the practical feasibility of incorporating variational inertial-coupling terms into an industrial CFD TFM code to ensure it is well-posed without the need for regularization. For verification, two special cases with exact analytical solutions of the TFM equations are utilized, exhibiting convergence at a mesh resolution of 1 mm." 2025-10-15T12:57:37Z 2025-10-15T12:57:37Z 2025-10-14 Artículo de publicación periódica Ram, R., López-de-Bertodano, M., Howard, J. A., & Clausse, A. (2025). A Verification of the Two-Fluid Model with InterfacialInertial Coupling. Fluids, 10(10), 268. https://doi.org/10.3390/fluids10100268 https://hdl.handle.net/20.500.14769/5115 https://doi.org/10.3390/fluids10100268 en application/pdf
institution Instituto Tecnológico de Buenos Aires (ITBA)
institution_str I-32
repository_str R-138
collection Repositorio Institucional Instituto Tecnológico de Buenos Aires (ITBA)
language Inglés
topic MODELO DE DOS FLUIDOS, FLUJO BIFÁSICO, ACOPLAMIENTO INERCIAL, VERIFICACIÓN DE CÓDIGO, SOLUCIONES ANALÍTICAS
spellingShingle MODELO DE DOS FLUIDOS, FLUJO BIFÁSICO, ACOPLAMIENTO INERCIAL, VERIFICACIÓN DE CÓDIGO, SOLUCIONES ANALÍTICAS
Ram, Raghav
López de Bertodano, Martín
Howard, James A.
Clausse, Alejandro
A Verification of the Two-Fluid Model with InterfacialInertial Coupling
topic_facet MODELO DE DOS FLUIDOS, FLUJO BIFÁSICO, ACOPLAMIENTO INERCIAL, VERIFICACIÓN DE CÓDIGO, SOLUCIONES ANALÍTICAS
description "The two-fluid model (TFM) has become a foundational tool in numerical codes used for engineering analyses of two-phase flows in energy systems. However, its completeness remains a topic of debate because improper modeling of interfacial inertial coupling can render the momentum conservation equations elliptic. This issue leads to short wavelength perturbations growing at an infinite rate. This paper demonstrates the practical feasibility of incorporating variational inertial-coupling terms into an industrial CFD TFM code to ensure it is well-posed without the need for regularization. For verification, two special cases with exact analytical solutions of the TFM equations are utilized, exhibiting convergence at a mesh resolution of 1 mm."
format Artículo de publicación periódica
author Ram, Raghav
López de Bertodano, Martín
Howard, James A.
Clausse, Alejandro
author_facet Ram, Raghav
López de Bertodano, Martín
Howard, James A.
Clausse, Alejandro
author_sort Ram, Raghav
title A Verification of the Two-Fluid Model with InterfacialInertial Coupling
title_short A Verification of the Two-Fluid Model with InterfacialInertial Coupling
title_full A Verification of the Two-Fluid Model with InterfacialInertial Coupling
title_fullStr A Verification of the Two-Fluid Model with InterfacialInertial Coupling
title_full_unstemmed A Verification of the Two-Fluid Model with InterfacialInertial Coupling
title_sort verification of the two-fluid model with interfacialinertial coupling
publishDate 2025
url https://hdl.handle.net/20.500.14769/5115
https://doi.org/10.3390/fluids10100268
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