Experimental Cells for Research Diesel Sprays

Experimental study of the injection conditions influence over n-dodecane and diesel sprays with two ECN single-hole nozzles. Part I: Inert atmosphere

“…The reactive experiments physically and chemically resembles much more to the real situations in a combustion internal engine. However, inert tests represent a useful and simpler approach to determine boundary conditions, simulate without flame the fluid-thermodynamic processes in the biphasic spray, and to improve computational models [11].…”

Macroscopic and microscopic characterization of non-reacting diesel sprays at low and very high injection pressures

“…Notwithstanding these difficulties, PDPA measurements on diesel spray applications, single and multi-hole nozzles, are still being a focus of interest in the research community, • The SMD increases with the rate of injection, since an increase in the volume of the injected liquid produces a greater air entrainment, the aerodynamic interaction grows and the critical size of the droplets increases. Aside from this, increasing the numeric population of droplets intensifies de coalescence, resulting in a growth in the geometry of the droplets [109].…”

“…• The SMD has time dependence. For the evolution of the diameter of droplets during time is generally considered that the sizes of the droplets tend to diminish at the beginning of the injection and grow at the end [109] • Larger droplets concentrations exist on the spray axis with a decay as the radial distance increases…”