García-Oliver, José M; Margot , Xandra; Chávez Cobo, Mariany de Jesús; Karlsson, A(PERGAMON-ELSEVIER SCIENCE LTD, 2011)
[EN] A 1D3D-CFD coupled spray model is proposed in this work for the simulation of Diesel sprays under non-evaporative conditions and constant injection velocity in time. The basic idea of the model is to reduce the poor ...
Desantes Fernández, José Mª; García Oliver, José María; Pastor Enguídanos, José Manuel; Pandal-Blanco, Adrián(Begell House, 2016)
[EN] A comparison between the Σ-Y atomization model and a classical DDM approach has been carried out for diesel spray
CFD simulations. The Σ-Y model, originally proposed by Vallet and Borghi (1999), is based on an Eulerian ...
Pandal-Blanco, Adrián; García-Oliver, José M; Novella Rosa, Ricardo; Pastor Enguídanos, José Manuel(Elsevier, 2018)
[EN] An implementation and validation of the coupled Sigma-gamma ADF model is presented in this work for reacting Diesel spray CFD simulations under a RANS turbulence modeling approach. An Approximated Diffusion Flamelet ...
Pandal-Blanco, Adrián; Pastor Enguídanos, José Manuel; García Oliver, José María; Baldwin, E.; Schmidt, D.P.(Elsevier, 2016-07)
Despite great practical interest in how sprays emanate from fuel injectors, the near-nozzle region has
remained a challenge for spray modelers. Recently, Eulerian models have shown promise in capturing
the fast gas-liquid ...
Desantes, J.M.; López, J. Javier; García-Oliver, José M; López-Pintor, Darío(Elsevier, 2017)
[EN] A phenomenological explanation about the autoignition propagation under HCCI conditions is developed in this paper. To do so, diffusive effects from the burned zones to the fresh mixture, pressure waves based effects ...
Pastor Soriano, José Vicente; García Oliver, José María; García Martínez, Antonio; Micó Reche, Carlos; Durret, R.(Elsevier, 2013-04)
Nowadays many research efforts are focused on the study and development of new combustion modes, mainly based on the use of locally lean air–fuel mixtures. This characteristic, combined with exhaust gas recirculation, ...
Payri, Raul; García Oliver, José María; Xuan, Tiemin; Bardi, Michele(Elsevier, 2015-11-05)
The shape of Diesel spray was investigated at real engine conditions in a constant pressure combustion chamber. Schlieren imaging technique was used to make quantitative measurements of spray tip penetration and radial ...
García-Oliver, José M; Malbec, Louis-Marie; Toda, Hubert Baya; Bruneaux, Gilles(Elsevier, 2017-05)
[EN] A detailed study on the spray local flow and flame structure has been performed by means of PIV and laser-sheet LIF techniques under Diesel spray conditions. Operating conditions were based on Engine Combustion Network ...
Desantes J.M.; García-Oliver, José M.; Xuan, Tiemin; Vera-Tudela-Fajardo, Walter Martin(Elsevier, 2017)
[EN] The reacting diesel spray structure was investigated using n-dodecane, n-heptane and one binary blend of Primary Reference Fuels (80% n-heptane and 20% iso-octane in mass) based on the existing database from previous ...
Desantes Fernández, José Mª; Pastor, José V.; García Oliver, José María; Briceño Sánchez, Francisco Javier(Elsevier, 2014-08)
Schlieren imaging has helped deeply characterize the behavior of Diesel spray when injected into an oxygen-free ambient. However, when considering the transient penetration of the reacting spray after autoignition, i.e. ...
Vera-Tudela Fajardo, Walter Martin(Universitat Politècnica de València, 2015-12-16)
[EN] This last few years, the trend in diesel engines has been to use different kinds of fuels to identify their influence and behaviour on the emissions and performance. Among the wide variety of fuels employed are the ...
Pastor Soriano, José Vicente; García Oliver, José María; López, J. Javier; Vera-Tudela-Fajardo, Walter Martin(Elsevier, 2016-01-01)
An experimental study on the ignition and combustion of diesel-type sprays using n-heptane, iso-octane and four intermediate blends is presented. The choice of components was done in order to represent the transition from ...
Pastor, José V.; García-Oliver, José M; García Martínez, Antonio; Zhong, Wenjun; Micó Reche, Carlos; Xuan, Tiemin(SAE International, 2017)
[EN] Visualization of single-hole nozzles into quiescent ambient has been used extensively in the literature to characterize spray mixing and combustion. However in-cylinder flow may have some meaningful impact on the spray ...
Pastor Soriano, José Vicente; Payri Marín, Raúl; García Oliver, José María; Briceño Sánchez, Francisco Javier(Begell House, 2011)
The objective of this study is to investigate liquid length and vapor penetration for diesel sprays under highly transient
injection conditions. High-speed Mie-scattering and shadowgraphy imaging of the spray evolution ...
Pachano Prieto, Leonardo Manuel(Universitat Politècnica de València, 2017-07-27)
Emission legislation together with the need of more fuel-efficient engines have driven the development of promising combustion concepts in compression ignition (CI) engines. Most of them, lead toward a lean and low temperature ...
Vera Tudela Fajardo, Walter Martín(Universitat Politècnica de València, 2013-02-06)
[ES] El presente trabajo determina las diferencias que existen en un chorro de combustible en condiciones de evaporación en ausencia de oxígeno al modificar el inyector, presión de inyección, presión de cámara de combustión, ...
Rubio Jiménez, Marcos(Universitat Politècnica de València, 2020-05-12)
[ES] Durante los últimos años las leyes sobre contaminación cada vez son más restrictivas y
esto lleva a ingenieros e investigadores a buscar soluciones que cumplan con la normativa
establecida. Una de las estrategias ...
Mora Morató, Joaquín(Universitat Politècnica de València, 2019-09-17)
[ES] El modelado de chorros permite describir el comportamiento del combustible al ser
inyectado en la cámara de combustión de los motores de encendido por compresión, con
implicaciones importantes sobre las prestaciones ...