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Listar por palabra clave "Computational fluid dynamics"

Mostrando ítems 1-20 de 70

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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 numerical investigation of the performance of oxymethylene ethers blended with fossil diesel to reduce soot emissions in compression ignition engines

García-Oliver, José M; Novella Rosa, Ricardo; Micó, Carlos; Khalid, Usama Bin (Elsevier, 2022-06-14)

[EN] The reduction of the carbon footprint of internal combustion engines and the pollutant emissions is mandatory for the survival of this technology. In this sense, e-fuels are considered as a potential pathway to achieve ...
Accelerating urban scale simulations leveraging local spatial 3D structure

Iserte, Sergio; Macías, Aina; Martínez-Cuenca, Raúl; Chiva, Sergio; Paredes Palacios, Roberto; Quintana-Ortí, Enrique S. (Elsevier, 2022-07)

[EN] This paper presents a hybrid methodology for accelerating Computational Fluid Dynamics (CFD) simulations intertwining inferences from deep neural networks (DNN). The strategy leverages the local spatial data of the ...
Acoplamiento del método de teoría de elemento de pala con volúmenes finitos en OpenFOAM

Torres Pons, Alfredo Francisco (Universitat Politècnica de València, 2023-10-17)

[ES] Los programas de dinámica de fluidos computacional (o CFD, por sus siglas en inglés) permiten obtener soluciones detalladas en problemas complejos de dinámica de fluidos. Como regla general, cuanto más complejo es el ...
Acoustic characteristics of a ported shroud turbocompressor operating at design conditions

Sharma, Sidharath; Broatch, A.; GARCIA TISCAR, JORGE; Allport, John M.; Nickson, Ambrose K. (SAGE Publications, 2020-10)

[EN] In this article, the acoustic characterisation of a turbocharger compressor with ported shroud design is carried out through the numerical simulation of the system operating under design conditions of maximum isentropic ...
Advantages of hydrogen addition in a passive pre-chamber ignited SI engine for passenger car applications

Benajes, Jesús; Novella Rosa, Ricardo; Gómez-Soriano, Josep; Barbery-Avila, Ibrahim Ignacio; Libert, C. (John Wiley & Sons, 2021-07)

[EN] Hydrogen is one of the most promising alternative fuels for the transportation industry. The use of hydrogen to enable lean burn in internal combustion engines is an attractive solution for reducing CO2 emissions from ...
Aerodynamic Analysis of Simple Girder Bridges under Construction Phase

Sadrizadeh, Sasan; Martínez-López, Guillermo; Ülker-Kaustell, Mahir; Karoumi, Raid (MDPI AG, 2021-06)

[EN] Bridge designs are becoming slender and lighter, making wind dynamic effects even more important than wind static effects. Some types of bridges show especially vulnerable situations during construction stages, when ...
Analysis of Applicability of CFD Numerical Studies Applied to Problem When Pump Working as Turbine

Plua, Frank; Hidalgo, Victor; López Jiménez, Petra Amparo; Pérez-Sánchez, Modesto (MDPI AG, 2021-08)

[EN] The present research depicts an analysis of the implementation of computational fluid dynamics (CFD) in the study of pumps such as turbines and PATs. To highlight the benefits of CFDs for PAT studies, results from ...
Analysis of the impact of the geometry on the performance of an automotive centrifugal compressor using CFD simulations

Galindo, José; Gil Megías, Antonio; Navarro, Roberto; Tarí, Daniel (Elsevier, 2019-02-05)

[EN] During the latest years, downsizing in internal combustion engines has moved the operating conditions of the compressor closer the surge limit. Surge onset depends on the geometry of the compressor inlet and is difficult ...
Analysis of the influence of geometric, modeling and environmental parameters on the fire response of steel bridges subjected to realistic fire scenarios

Peris-Sayol, Guillem; Paya-Zaforteza, Ignacio; Alós Moya, José; Hospitaler Pérez, Antonio (Elsevier, 2015-06)

This paper studies bridge fires by using numerical models to analyze the response of a typical girder bridge to tanker truck fires. It explains the influence of fire position, bridge configuration (vertical clearance, ...
Análisis CFD de las prestaciones y la hemocompatibilidad de la bomba centrífuga HeartMate3: efecto de la posición del rotor en la asistencia cardíaca

Plaza León, Diego (Universitat Politècnica de València, 2023-09-12)

[ES] El presente Trabajo de Fin de Máster tiene como objetivo analizar una bomba centrífuga diseñada para ser utilizada como dispositivo de asistencia ventricular (VAD) en el tratamiento de fallos cardíacos. El estudio se ...
Análisis de actuaciones de un vehículo para movilidad aérea urbana

Hortelano Busto, Jordi (Universitat Politècnica de València, 2022-09-01)

[ES] Los últimos avances en materiales, electrónica de potencia, computación, motores eléctricos, fabricación aditiva y baterías van a permitir desarrollos revolucionarios en el transporte aéreo. En los últimos años, se ...
Análisis mediante mecánica de fluidos computacional y teoría de elemento de pala de rotores de pequeño tamaño

Jiménez Ortolà, Josep (Universitat Politècnica de València, 2022-07-28)

[ES] En el estudio se analiza el comportamiento de la hélice de un UAV de pequeño tamaño para todo su rango de funcionamiento. El objetivo principal es la obtención de los mapas de funcionamiento de la pala en diferentes ...
Application of CFD methods to an anaerobic digester: The case of Ontinyent WWTP, Valencia, Spain

López Jiménez, Petra Amparo; Escudero-Gonzalez, Juan; Montoya Martinez, Tatiana; Fajardo Montanana, Vicente; Gualtieri, Carlo (Elsevier, 2015-09)

[EN] tIn recent years, Computational Fluid Dynamics (CFD) methods have increasingly been used to charac-terize hydrodynamics and mass-transport in wastewater treatment units. Despite being a well-knownand widely applied ...
Attenuation of pipeline filling over-pressures through trapped air

Paternina-Verona, Duban A.; Coronado-Hernández, Oscar E.; Héctor Espinoza-Román; Arrieta-Pastrana, Alfonso; Elias Tasca; Fuertes-Miquel, Vicente S.; Ramos, Helena M. (Taylor & Francis, 2024-05)

[EN] Entrapped air pockets in water pipelines play a significant role in influencing transient over-pressures during filling procedures. Several research is focused on highlighting the attenuation of pressure peaks in pipes ...
Caracterización de Ventosas mediante técnicas CFD

García Mares, Francisco José (Universitat Politècnica de València, 2013-06-27)

[ES] El aire atrapado en las conducciones de agua a presión es el causante de muchos problemas, algunos de los cuales pueden tener consecuencias catastróficas para la integridad de la instalación en sí. Como solución más ...
Centrifugal compressor influence on condensation due to Long Route-Exhaust Gas Recirculation mixing

Galindo, José; Navarro, Roberto; Tarí, Daniel; García -Olivas, Guillermo (Elsevier, 2018-11-05)

[EN] State of the art techniques for reducing pollutant emission in internal combustion engines often require local flow assessment, specially in the air management field. This work addresses the interaction between a ...
CFD analysis of combustion and emission characteristics of primary reference fuels: from transient Diesel spray to heavy-duty engine

Zhou, Qiyan; Lucchini, Tommaso; D'Errico, Gianluca; Novella Rosa, Ricardo; García-Oliver, José M; Lu, Xingcai (Elsevier, 2021-10-01)

[EN] The pre-blending of low- and high-reactivity fuels for a single direct injection system has been proven to be an effective way to control the reactivity of mixtures in compression ignition engines, having the potential ...
CFD modeling of combustion and soot production in Diesel sprays

Pachano Prieto, Leonardo Manuel (Universitat Politècnica de València, 2020-05-04)

[ES] En los últimos años, las emisiones de hollín provenientes de los motores de combustión interna han recibido más atención debido al impacto negativo que éstas tienen no solo en el ambiente, sino también en la salud del ...
CFD simulation plus uncertainty quantification of the mixing of two fluid with different density for the Cold-Leg mixing benchmark

Rivera-Durán, Yago; Muñoz-Cobo, J. L.; Berna, C.; Escrivá, A.; Vela, E. (Elsevier, 2021-11)

[EN] This document describes the details of the simulations and uncertainty quantification of the Cold-Leg Mixing benchmark performed at the Institute for Energy Engineering (Polytechnic University of Valencia, Spain). The ...