[EN] In the latter years, the Gasoline Direct Injection systems (GDI) have been studied with the aim of providing a solution to the particulate matter emission issue. It has been proved that emission levels are reduced ...
In this paper the study of the behavior of the fuel flow through the injector nozzle using CFD tools is presented. Large Eddy Simulation will be used to model the internal flow turbulence in a Diesel fuel injector with ...
Payri, Raul; Salvador Rubio, Francisco Javier; Gimeno, Jaime; Bracho Leon, Gabriela(Elsevier, 2011-03)
The current work focuses on the study of the influence of pressure and temperature on three important thermodynamic properties: speed of sound, compressibility and density of common diesel fuels. The sample fuels studied ...
Salvador, Francisco Javier; Gimeno, Jaime; Martín, Jaime; Carreres, Marcos(Elsevier, 2020-01-15)
[EN] The fuel flow along common-rail injectors is usually treated as isothermal, although the expansions across the injector orifices lead to variations in the fuel temperature that in turn modify the fuel properties ...
[EN] Injection duration in spark ignition engines is typically very short. Thus, understanding transient effects of the Gasoline Direct injection (GDi) process plays a major role in the analysis of the mixture formation ...
[EN] In recent years, injectors with multiple outlet-holes and smaller diameters have been implemented to reduce pollutant emissions during the combustion development. Nevertheless, increasing the number of holes has also ...
Salvador Rubio, Francisco Javier; Gimeno García, Jaime; Morena Borja, Joaquín de la; Carreres Talens, Marcos(Elsevier, 2012-02)
The influence of using biodiesel fuels on the hydraulic behavior of a solenoid operated common rail injection system has been explored by means of a one-dimensional model. This model has been previously obtained, including ...
[EN] Cavitation phase change phenomenon appears in many engineering applications, often eroding and damaging surfaces, so deteriorating the performance of devices. Therefore, it is a phenomenon of great interest for the ...
A new solver capable of calculating liquid and/or gas problems has been developed, verified and validated. Compressible solvers in Computational Fluid Dynamics use both mass flux and volumetric fluxes through the cell ...