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Listar por autor "Crialesi Esposito, Marco"

Mostrando ítems 1-10 de 10

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 ...
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 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 ...
Comparative study of the internal flow in diesel injection nozzles at cavitating conditions at different needle lifts with steady and transient simulations approaches

Salvador, Francisco Javier; De La Morena, Joaquín; Crialesi Esposito, Marco; Martínez López, Jorge (SAGE Publications, 2018)

[EN] The motion of the needle during the injection process of a diesel injector has a marked influence on the internal flow, the fuel characteristics at the nozzle exit, the spray pattern and the fuel-air mixing process. ...
Determination of critical operating and geometrical parameters in diesel injectors through one dimensional modelling, design of experiments and an analysis of variance

Salvador, Francisco Javier; Carreres, Marcos; Crialesi Esposito, Marco; Plazas Torres, Alejandro Hernán (SAGE Publications, 2018)

[EN] In this paper, a design of experiments and a statistical analysis of variance (ANOVA) are performed to determine the parameters that have more influence on the mass flow rate profile in diesel injectors. The study has ...
Effects of isotropic and anisotropic turbulent structures over spray atomization in the near field

Crialesi-Esposito, Marco; González-Montero, Lucas Antonio; Salvador, Francisco Javier (Elsevier, 2022-05)

[EN] Sprays and atomization processes are extremely diffused both in nature and in industrial applications. In this paper we analyze the influence of the nozzle turbulence on primary atomization, focusing on the resulting ...
Experimental assessment of the fuel heating and the validity of the assumption of adiabatic flow through the internal orifices of a diesel injector

Salvador, F.J.; Gimeno, Jaime; Carreres, M.; Crialesi Esposito, Marco (Elsevier, 2017)

[EN] In this paper an experimental investigation on the heating experienced by the fuel when it expands through the calibrated orifices of a diesel injector is carried out. Five different geometries corresponding to the ...
Experimental investigation of the effect of orifices inclination angle in multihole diesel injector nozzles. Part-1-Hydraulic performance

Salvador, Francisco Javier; López, J. Javier; De La Morena, Joaquín; Crialesi Esposito, Marco (Elsevier, 2018)

[EN] Nozzle hydraulic performance has a significant impact on diesel spray development and combustion characteristics. Thus, it is important to understand the links between the nozzle geometry, the internal flow features ...
Fuel temperature influence on the performance of a last generation common-rail diesel ballistic injector. Part I: Experimental mass flow rate measurements and discussion

Salvador Rubio, Francisco Javier; Gimeno, Jaime; Carreres Talens, Marcos; Crialesi Esposito, Marco (Elsevier, 2016-04-15)

An experimental study is conducted in this paper in order to assess the influence of the fuel temperature on the performance of a last generation common-rail ballistic solenoid injector. Mass flow rate measurements are ...
Study of turbulence in atomizing liquid jets

Torregrosa, A. J.; Payri, Raul; Salvador, Francisco Javier; Crialesi-Esposito, Marco (Elsevier, 2020-08)

[EN] Among the many unknowns in the study of atomizing sprays, defining an unambiguous way to analyze turbulence is, perhaps, one of the most limiting ones. The lack of proper tools for the analysis of the turbulence field ...