Lozano Antón, Alejandro(Universitat Politècnica de València, 2023-10-30)
[ES] La optimización del proceso de inyección de combustibles líquidos sigue siendo un aspecto clave para mejorar la eficiencia y reducir el nivel de emisiones contaminantes en aplicaciones que todavía requiren de procesos ...
Sancho Fornes, María del Carmen(Universitat Politècnica de València, 2021-01-14)
[ES] El presente Trabajo Fin de Grado ha sido realizado con la finalidad de entender la influencia de las condiciones de contorno en el proceso de atomización de un quemador de flujo continuo. Para ello se han utilizado ...
Pandal, Adrián; García-Oliver, José M; Pastor Enguídanos, José Manuel(SAGE Publications, 2020-01)
[EN] Diesel spray modeling is a multi-scale problem with complex interactions between different flow regions, that is, internal nozzle flow, near-nozzle region and developed spray, including evaporation and combustion. ...
Hoyas, S; Pastor Enguídanos, José Manuel; Khuong ., Anh Dung; Mompó Laborda, Juan Manuel; Ravet, Frederic(Inderscience, 2011)
[EN] Many approaches have been used to simulate the spray structure especially in modelling fuel sprays, i.e., Eulerian, Lagrangian, Lagrangian- Eulerian, Eulerian-Eulerian and Eulerian-Lagrangian approaches. The present ...
Salvador, Francisco Javier; Gimeno, Jaime; De La Morena, Joaquín; González-Montero, Lucas Antonio(Elsevier, 2021-05-15)
[EN] Primary atomization and initial spray development are critical in the operation of high-pressure liquid sprays such as the ones used in internal combustion engines. In the current paper, an analysis of the effect of ...
[EN] Potential factors leading to surface oil were investigated by analyzing the impact of emulsion properties, atomization and drying conditions separately. An increased oil load, droplet size and in particular the size ...
Pandal Blanco, Adrián(Universitat Politècnica de València, 2016-09-01)
[EN] The main objective of this work is the modeling of diesel sprays under engine conditions, including the atomization, transport and evaporation processes pivotal in the diesel spray formation and its development. For ...
[EN] A weak coupling strategy is proposed to simulate the pressurised spray without any empirical readjustment. Volume
Of Fluid is used to simulate the nozzle internal flow with cavitation and its primary atomization into ...
Moure Sabaté, Álvaro(Universitat Politècnica de València, 2021-09-14)
[ES] La emisión continua de gases de efecto invernadero (CO2 , N2 O, H2 O, etc) y de compuestos contaminantes (NOx , HC, hollín, etc), por parte del sector del transporte, ha generado un movimiento de preocupación ...
Desantes Fernández, José Mª; García-Oliver, José M; Pastor Enguídanos, José Manuel; Olmeda-Ramiro, Iván; Pandal, A.; Naud, B.(Elsevier, 2020-06)
[EN] Engine fuel spray modeling still remains a challenge, especially in the dense near-nozzle region. This region is difficult to experimentally access and also to model due to the complex and rapid liquid and gas ...
García Galindo, Agustín(Universitat Politècnica de València, 2017-09-28)
[EN] In gas turbine combustors, there is a continuous high velocity airflow in which the fuel is injected by means of an atomizer. Given the high turbulence of the airstream, induced through a swirler, the fuel (also ...
Muñoz Agulló, Alicia(Universitat Politècnica de València, 2022-10-14)
[ES] El presente TFM aborda la resolución del flujo interno y la atomización primaria de
un inyector “pressure-swirl” de uso aeronáutico mediante un estudio computacional. El
problema de estudio consiste en un flujo ...
González Montero, Lucas Antonio(Universitat Politècnica de València, 2017-10-03)
El objetivo del presente Trabajo de Fin de Máster es el estudio de la primera etapa de atomización de un chorro diésel mediante técnicas computacionales. Un análisis en profundidad de este proceso permitir´a entender con ...
Desantes Fernández, José Mª; García Oliver, José María; Pastor, J.M.; Pandal, A.; Naud, B.; Matusik, K.; Duke, D.; Kastengren, A.; Powell, C.; Schmidt, D.P.(Editorial Universitat Politècnica de València, 2017-07-28)
[EN] Diesel spray modelling still remains a challenge, especially in the dense near-nozzle region. This region is difficult
to experimentally access and also to model due to the complex and rapid liquid and gas interaction. ...
Payri, Raul; Gimeno, Jaime; Marti-Aldaravi, Pedro; Alarcón-Herrera, Mary Yilbary(Springer-Verlag, 2017)
[EN] The injector dynamics have a strong impact on spray behavior, therefore on combustion efficiency and pollutant emissions. Nozzle flow and spray coupled simulations are useful tools to analyze the effect of nozzle ...
Salvador Rubio, Francisco Javier; Romero Bauset, José Vicente; Roselló Ferragud, María Dolores; Jaramillo-Císcar, David(Elsevier, 2016-01-01)
[EN] Atomization involves complex physical processes and gas liquid interaction. Primary atomization
on diesel spray is not well understood due to the difficulties to perform experimental
measurements in the near nozzle ...
Benajes, Jesús; Salvador, Francisco Javier; Carreres, M.; Jaramillo-Císcar, David(SAGE Publications, 2017)
[EN] In this paper, a high-resolution visualization technique has been used in combination with an extensively validated 0D model in order to relate the external structure of a diesel spray to the internal properties in ...
[EN] Airblast atomization is commonly used to atomize fuel in aircraft engines. An annular liquid sheet is atomized by
the shear forces exerted by the co-flowing air stream. Nevertheless, this technique is less effective ...
Sechenyh, Vitaliy; Duke, Daniel J.; Swantek, Andrew B.; Matusik, Katarzyna E.; Kastengren, Alan L.; Powell, Christopher F.; Viera, Alberto; Payri, Raul; Crua, Cyril(SAGE Publications, 2020-01)
[EN] Post-injection fuel dribble is known to lead to incomplete atomisation and combustion due to the release of slow-moving, and often surface-bound, liquid fuel after the end of injection. This can have a negative effect ...
[EN] Spray drying is widely used for powder production from liquid concentrates. Often low input temperatures are desired, as many materials, like proteins, are sensitive to heat. However, this demand leads to increased ...