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Listar por autor "Salvador Rubio, Francisco Javier"

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1D energy, exergy, and performance assessment of turbocharged diesel/hydrogen RCCI engine at different levels of diesel, hydrogen, compressor pressure ratio, and combustion duration

Taghavifar, Hadi; Nemati, Arash; Salvador, Francisco Javier; De La Morena, Joaquín (Elsevier, 2021-06-18)

[EN] There is a growing concern about the feasibility of a new generation of internal combustion engines in a low-temperature and efficient way that can meet the emission regulations while maintaining the desirable power ...
A comprehensive study on the effect of cavitation on injection velocity in diesel nozzles

López, J. Javier; Salvador Rubio, Francisco Javier; De La Garza De Leon, Oscar; Arregle, Jean Joseph Pierre (Elsevier, 2012-12)

Results when testing cavitating injection nozzles show a strong reduction in mass flow rate when cavitation appears (the flow is choked), while the momentum flux is reduced to a lesser extent, resulting in an increase in ...
A computational investigation on the influence of the use of elliptical orifices on the inner nozzle flow and cavitation development in diesel injector nozzles

Molina, Santiago; Salvador Rubio, Francisco Javier; Carreres Talens, Marcos; Jaramillo, D. (Elsevier, 2014-03)

In this paper a computational study was carried out in order to investigate the influence of the use of elliptical orifices on the inner nozzle flow and cavitation development. With this aim, a large number of injection ...
A computational methodology to account for the liquid film thickness evolution in Direct Numerical Simulation of prefilming airblast atomization

Payri, Raul; Salvador, Francisco Javier; Carreres, Marcos; Moreno-Montagud, C. (Elsevier, 2023-04)

[EN] Prefilming airblast atomization is becoming widely used in current aero engines. Fundamental studies on the actual annular configuration of airblast atomizers are difficult to realize. For this reason, researchers ...
A contribution to the understanding of cavitation effects in Diesel injector nozzles through a combined experimental and computational investigation

Payri González, Francisco; Payri, Raul; Salvador Rubio, Francisco Javier; Martínez López, Jorge (Elsevier, 2012-04-15)

In this paper a combined experimental and computational study was carried out in order to assess the ability of a homogeneous equilibrium model in predicting the experimental behaviour observed from the hydraulical ...
A novel inlet boundary condition for VOF-DNS simulations of the primary breakup of prefilming airblast atomizers

Payri, Raul; Salvador, Francisco Javier; Carreres, Marcos; Moreno-Montagud, Carlos (2021-09-02)

[EN] Prefilming airblast atomizers are becoming widely used in state-of-the-art aero engines. The planar configuration experimentally studied by the Karlsruhe Institute of Technology (KIT) has been computationally ...
A Technique to Match the Refractive Index of Different Diesel Fuels with the Refractive Index of Transparent Materials to Improve the Experimental Visualization

Payri, Raul; Salvador Rubio, Francisco Javier; Gimeno, Jaime; Venegas Pereira, Óscar Hernando (Springer Verlag (Germany), 2016-02)

In this article a technique to match the refractive index (n) of different diesel fuels with the refractive index of transparent materials is presented with the aim to improve the flow visualization inside transparent ...
Acoplamiento de las características del flujo interno turbulento de una tobera a cálculos de la atomización primaria en chorro diesel mediante DNS

Crialesi Esposito, Marco (Universitat Politècnica de València, 2017-08-29)

The understanding of the combustion process in energy generation, both for stationary purpose or for propulsion, is becoming more and more demanding as the technology progress toward a cleaner combustion able to reduce the ...
Adaptación del diseño de una maqueta para la visualización de la atomización primaria en atomizadores basados en toberas de inyección a alta presión

Navarro Domínguez, Modesto (Universitat Politècnica de València, 2018-09-28)

En la última década las leyes medioambientales y el alto precio de los combustibles han provocado un aumento en la investigación y desarrollo de los motores Diésel. Como consecuencia, se ha establecido una normativa que ...
Analysis of diesel spray atomization by means of a near-nozzle field visualization technique

Payri Marín, Raúl; Salvador Rubio, Francisco Javier; Gimeno García, Jaime; De La Morena Borja, Joaquín (Begell House, 2011)

[EN] In this paper, a high-resolution visualization technique has been used in order to characterize Diesel spray structure in the near-nozzle field. For this purpose, three conical nozzles with different diameters have ...
Analysis of primary atomization in sprays using Direct Numerical Simulation

Crialesi Esposito, Marco (Universitat Politècnica de València, 2019-12-21)

[ES] La comprensión de los fenómenos físicos que acontecen en la región densa (también conocida como campo cercano) durante la atomización de los sprays ha sido una de las mayores incógnitas a la hora de estudiar sus ...
Analysis of the combined effect of hydrogrinding process and inclination angle on hydraulic performance of diesel injection nozzles

Salvador Rubio, Francisco Javier; Carreres Talens, Marcos; Jaramillo Císcar, David; Martínez López, Jorge (Elsevier, 2015-11-15)

A computational study to investigate the influence of the orifices inclination and the rounding radius at the orifice inlet (consequence of the hydro-erosive grinding process applied after the orifices machining) over the ...
Analysis of vortex core generation in pipe flows under different reynolds number conditions

Salvador, Francisco Javier; Carreres, Marcos; Quintero-Igeño, Pedro-Manuel; González-Montero, Lucas Antonio (Springer-Verlag, 2021-06)

[EN] Pipe flow is a well-documented case widely studied in both theoretical and practical applications. The present work aims at studying the influence of the Reynolds number on turbulent vortex distribution using Large ...
Analysis on the efects of turbulent inflow conditions on spray primary atomization in the near-field by direct numerical simulation

Salvador, Francisco Javier; Ruiz, S.; Crialesi Esposito, Marco; Blanquer Espert, Ignacio (Elsevier, 2018)

[EN] It is widely acknowledged that the development of sprays in the near-field is of primary importance for the spray formation downstream, as it affects both the spray angle, as well as the intact core length. In this ...
Análisis de la turbulencia en el flujo interno bajo diferentes números de Reynolds mediante CFD y su relevancia en el proceso de atomización primaria

Giuffrida Izquierdo, Gianluca (Universitat Politècnica de València, 2019-09-10)

[ES] Este Trabajo de Fin de Grado tiene como objetivo el estudio del comportamiento del flujo turbulento en el interior de una tobera de inyección de geometría cilíndrica mediante el cálculo de CFD aplicando el ...
Aplicación de una metodología de ensayo de inyectores diésel de última generación para la caracterización del proceso de inyección diésel a muy alta presión en condiciones evaporativas y no evaporativas

Llerena Climent, Cristina (Universitat Politècnica de València, 2016-12-01)

[ES] En el proyecto, el alumno, utilizará herramientas experimentales para la medida de tasa de inyección y otros parámetros macroscópicos característicos del chorro Diesel, tales como la penetración del líquido y del ...
Architectural and construction design of a single-family building in a passive standard

Porcellar Rodríguez, Sergio (Universitat Politècnica de València, 2022-07-21)

[ES] El Trabajo de Final de Grado ¿Arquitectura y diseño de construcción de una vivienda unifamiliar siguiendo el concepto pasivo¿ persigue el estudio de los principios del diseño de las casas pasivas. Una casa pasiva es ...
Assessment of compressibility effects on internal nozzle flow in diesel injectors at very high injection pressures

Salvador, F.J.; De La Morena, Joaquín; Martínez López, Jorge; Jaramillo-Císcar, David (Elsevier, 2017)

[EN] Diesel fuel injection systems are being used at higher injection pressure conditions over time because of more stringent emissions requirements. Thus, the importance to properly take into account the fluid compressibility ...
Caracterización completa de un inyector Bosch piezoeléctrico de última generación para la empresa General Motors

Garijo Martínez, Juan Ramón (Universitat Politècnica de València, 2014-02-21)

Consulta en la Biblioteca ETSI Industriales (6480)
Caracterización completa de un inyector diesel piezoeléctrico de última generación y obtención de un modelo 1-D con la plataforma comercial de simulación Amesim

Jiménez Solano, María Begoña (Universitat Politècnica de València, 2013-05-27)

Consulta en la Biblioteca ETSI Industriales (8884)