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Browsing by Subject "OpenFOAM"

Now showing items 1-20 of 50

2D CFD modeling of rapid water filling with air valves usign OpenFOAM

Aguirre-Mendoza, Andrés M.; Oyuela, Sebastián; Espinoza-Román, Héctor G.; Coronado-Hernández, Oscar E.; Fuertes-Miquel, Vicente S.; Paternina-Verona, Duban A. (MDPI AG, 2021-11)

[EN] The rapid filling process in pressurized pipelines has been extensively studied using mathematical models. On the other hand, the application of computational fluid dynamics models has emerged during the last decade, ...
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 simulation of a subcooled nucleate boiling in a pipe with openfoam

Roda Guillem, Cristian (Universitat Politècnica de València, 2015-11-23)

Proyecto confidencial (Riunet)
A study of the controlling parameters of fuel air mixture formation for ECN Spray A

Vogiatzaki, Konstantina; Crua, Cyril; Morgan, Robert; Heikal, Morgan (Editorial Universitat Politècnica de València, 2017-07-28)

[EN] Designing future ultra-high efficiency, ultra-low emission engines requires an in depth understanding of the multiscale, multi-phase phenomena taking place in the combustion chamber. The performance of the fuel ...
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 ...
Analysis of Sub-Atmospheric Pressures during Emptying of an Irregular Pipeline without an Air Valve Using a 2D CFD Model

Hurtado-Misal, Aris D.; Hernández-Sanjuan, Daniela; Coronado-Hernández, Oscar E.; Espinoza-Román, Héctor; Fuertes-Miquel, Vicente S. (MDPI AG, 2021-09)

[EN] Studying sub-atmospheric pressure patterns in emptying pipeline systems is crucial because these processes could cause collapses depending on the installation conditions (the underground pipe covering height, type, ...
Análisis aerodinámico de un vehículo Tesla Cybertruck mediante dinámica de fluidos computacional (CFD)

Jiménez Gorlat, Juan Álvaro (Universitat Politècnica de València, 2021-10-07)

[ES] La capacidad de análisis de procesos físicos se ha visto muy desarrollada en los últimos años. En concreto, las técnicas CFD, o dinámica de fluidos computacional, ofrecen la posibilidad de estudiar una gran cantidad ...
Análisis numérico 3D de las características del flujo en un canal curvo

Sánchez-Cordero, E.; Gómez, M.; Bladé, E. (Universitat Politècnica de València, 2020-07-31)

[ES] El presente trabajo muestra un análisis numérico 3D del comportamiento del flujo de agua en un canal curvo influenciado por la presencia de un vertedero y una compuerta. La simulación numérica se realizó utilizando ...
Análisis numérico 3D de una rotura de presa utilizando el método VOF y el modelo de turbulencia LES

Sánchez-Cordero, E.; Boix, J.; Gómez, M.; Bladé, E. (Universitat Politècnica de València, 2018-07-30)

[EN] In this paper, three-dimensional numerical analysis of dam-break flow pattern in a laboratory-scale is reported. The simulation was performed using the open source computational fluid dynamics (CFD) solver based on ...
Caracterización de pérdidas de carga en válvulas de mariposa mediante técnicas CFD

Heras Bonilla, Noelia de las (Universitat Politècnica de València, 2018-09-18)

[ES] El objeto del presente trabajo es desarrollar un modelo numérico basado en técnicas de dinámica de fluidos computacional (CFD) que permita la caracterización del coeficiente de pérdidas de carga localizadas (K) que ...
Caracterización experimental de un prototipo de incubadora de neonatos prematuros

Llácer González, Jorge (Universitat Politècnica de València, 2019-10-01)

[ES] En la actualidad, el número de neonatos prematuros nacidos en países en vías de desarrollo es muy elevado. Esto es debido sobre todo a la falta de nutrientes de la madre durante el periodo de gestación, por lo que ...
CFD assessment of a steady and pulsed jet in a catalytic converter with a 2D mesh and a 3D mesh

Escartí Guillem, Mara Salut (Universitat Politècnica de València, 2020-05-11)

[ES] Debido al aumento de la contaminación de los automóviles, la industria automovilistica ha incluido convertidores catalíticos en sus tubos de escape. Pero el comportamiento de flujo dentro del monolito catalítico y en ...
Characterization of Structural Properties in High Reynolds Hydraulic Jump Based on CFD and Physical Modeling Approaches

Macián Pérez, Juan Francisco; Bayón, Arnau; García-Bartual, Rafael; López Jiménez, Petra Amparo; Vallés-Morán, F. J. (American Society of Civil Engineers, 2020-12-01)

[EN] A classical hydraulic jump with Froude number (Fr1=6) and Reynolds number (Re1=210,000) was characterized using the computational fluid dynamics (CFD) codes OpenFOAM and FLOW-3D, whose performance was assessed. The ...
Computational fluid dynamics multiscale modelling of bubbly flow. A critical study and new developments on volume of fluid, discrete element and two-fluid methods

Peña Monferrer, Carlos (Universitat Politècnica de València, 2017-11-06)

The study and modelling of two-phase flow, even the simplest ones such as the bubbly flow, remains a challenge that requires exploring the physical phenomena from different spatial and temporal resolution levels. CFD ...
Computational study on the non-reacting flow in Lean Direct Injection gas turbine combustors through Eulerian-Lagrangian Large-Eddy Simulations

Belmar Gil, Mario (Universitat Politècnica de València, 2021-01-21)

[ES] El principal desafío en los motores turbina de gas empleados en aviación reside en aumentar la eficiencia del ciclo termodinámico manteniendo las emisiones contaminantes por debajo de las rigurosas restricciones. Ésto ...
Desarrollo de una metodología de análisis del microemplazamiento de parques eólicos mediante técnicas CFD

Estruch Francés, Ramón (Universitat Politècnica de València, 2017-10-04)

The introduction of renewable energies remains a challenge today. Specifically, wind energy, due to the high cost of assessment techniques when a new wind farm is to be built. This is due to the material used for it (sensors, ...
Detailed simulation of air-assisted spray atomization: effect of numerical scheme at intermediate Weber number

Tretola, Giovanni; Vogiatzaki, Konstantina; Navarro-Martinez, Salvador (Editorial Universitat Politècnica de València, 2017-07-28)

[EN] Numerical simulations are often used to understand spray atomisation and estimate the size of the liquid fragments. Several techniques (Level Set, Volume of Fluid, Smooth Particle Hydrodynamics, among others) exist ...
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, ...
Development of a Segregated Compressible Flow Solver for Turbomachinery Simulations

Benajes Calvo, Jesus Vicente; Galindo Lucas, José; Fajardo, P.; Navarro García, Roberto (CASRPCenter of Advanced Scientific Research and Publications, 2014)

[EN] A steady multiple reference frame segregated compressible solver and an unsteady sliding mesh one are developed using OpenFOAM® to simulate turbomachinery. For each of the two solvers, governing equations, numerical ...
Diseño de instalaciones hidráulicas experimentales con apoyo de la dinámica de fluidos computacional (CFD)

Bayón, Arnau; Vallés-Morán, F. J.; Macián Pérez, Juan Francisco; López Jiménez, Petra Amparo (International Association for Hydro-Environment Engineering and Research (IAHR), 2017)

[ES] La cuantificación de pérdidas de carga causadas por elementos singulares en instalaciones hidráulicas no puede realizarse determinísticamente, por lo que debe llevarse a cabo su ensayo en laboratorio. No obstante, ...