Buscar en RiuNet

Listar

Todo RiuNet

Mi cuenta

Acceder

Ayuda RiuNet

Admin. UPV

Listar por palabra clave "Bubbly flow"

Mostrando ítems 1-9 de 9

A CFD-DEM solver to model bubbly flow. Part I: Model development and assessment in upward vertical pipes

Peña-Monferrer, Carlos; Monrós Andreu, Guillem; Chiva Vicent, Sergio; Martinez-Cuenca, R.; Muñoz-Cobo, J. L. (Elsevier, 2018)

[EN] In the computational modeling of two-phase flow, many uncertainties are usually faced in simulations and validations with experiments. This has traditionally made it difficult to provide a general method to predict ...
A CFD-DEM solver to model bubbly flow. Part II: Critical validation in upward vertical pipes including axial evolution

Peña-Monferrer, Carlos; Monrós-Andreu, Guillem; Chiva Vicent, Sergio; Martinez-Cuenca, R.; Muñoz-Cobo, J. L. (Elsevier, 2018)

[EN] In the computational modeling of two-phase flow, many uncertainties are usually faced in simulations and validations with experiments. This has traditionally made it difficult to provide a general method to predict ...
A coupled lattice Boltzmann/finite volume method for turbulent gas-liquid bubbly flows

Lauwers, Daniel; Meinke, Matthias; Schröder, Wolfgang (Editorial Universitat Politècnica de València, 2022-05-11)

[EN] A simulation method for large eddy simulations (LES) of dispersed gas-liquid bubbly flows based on an Eulerian-Eulerian (E-E) model is presented. A volume averaging approach is used resulting in a set of conservation ...
A criterion for the transition from wall to core peak gas volume fraction distributions in bubbly flows

Méndez Díaz, Santos; Zenit, Roberto; Chiva Vicent, Sergio; Muñoz-Cobo, J.L.; Martinez-Martinez, Santiago (Elsevier, 2012)

[EN] It has been observed by many authors that for ascending bubbly flows, the gas fraction distributes radially in different manners. Depending on the flow conditions and channel characteristics, the bubbles may accumulate ...
An Eulerian-Lagrangian open source solver for bubbly flow in vertical pipes

Peña Monferrer, Carlos; Muñoz-Cobo González, José Luís; Monrós Andreu, G.; Martinez Cuenca, R.; Chiva Vicent, Sergio (Sociedad Nuclear Española, 2014-10)

Air-water two-phase flow is present in natural and industrial processes of different nature as nuclear reactors. An accurate local prediction of the boiling flow could support safety and operation analyses of nuclear ...
COUPLED LAGRANGE-EULER MODEL FOR SIMULATION OF BUBBLY FLOW IN VERTICAL PIPES CONSIDERING TURBULENT 3D RANDOM WALKS MODELS AND BUBBLES INTERACTION EFFECTS

Ali Abd El Aziz Essa ., Mohamed (Universitat Politècnica de València, 2012-12-07)

Una nueva aproximación euleriana-lagarangiana, en su forma de acople en dos vías, para la simulación de flujo de burbujas, agua-aire es presentada en la tesis, en la que se incluyen los efectos de las colisiones entre ...
Development and assessment of a one-dimensional CFD solver for boiling flows in bubbly regimes

Gómez-Zarzuela Quel, Consuelo (Universitat Politècnica de València, 2020-07-21)

[EN] The present PhD thesis aims at the development of a one-dimensional solver capable of solving single- and two-phase flow fluid systems. The novelty of this project lies in the use of an open source CFD platform, ...
Experiments performed with bubbly flow in vertical pipes at different flow conditions covering the transition region: Simulation by coupling Eulerian, Lagrangian and 3D random walks models

Muñoz-Cobo, José L.; Chiva, Sergio; Ali Abdelaziz Essa, Mohamed; Mendez, Santos (De Gruyter Open Sp. z o.o., 2012)

[EN] Two phase flow experiments with different superficial velocities of gas and water were performed in a vertical upward isothermal cocurrent air-water flow column with conditions ranging from bubbly flow, with very low ...
Medida experimental de la concentración de área interfacial en flujos bifásicos finalmente dispersos y en transición

Méndez Díaz, Santos (Universitat Politècnica de València, 2008-09-30)

En años recientes se han realizado esfuerzos para incrementar la compresión de los fenómenos asociados al flujo bifásico líquido - gas, para lo cual se han establecido modelos matemáticos que intentan reflejar el comprotamiento ...