Most previous measurements of diesel sprays have yielded few details regarding the near-nozzle structure of the sprays. X-ray radiography measurements have provided quantitative, time-resolved measurements of spray behavior, but the radiography data are projections of the actual fuel distribution. In this study, diesel sprays from two axial, single-hole nozzles are measured using x-ray radiography from several viewing angles. A model-based reconstruction is used to determine the actual density distribution from the projected data. The spray from the hydroground nozzle is eccentric and relatively dense, while the spray from the non-hydroground nozzle is asymmetric and far less dense. Even several mm from the nozzles, the calculated density values are high enough to call into question the assumptions underlying many standard CFD spray models.
Time Resolved, Three Dimensional Mass Distribution of Diesel Sprays Measured with X-Ray Radiography
Sae Technical Papers
SAE World Congress & Exhibition ; 2009
2009-04-20
Aufsatz (Konferenz)
Englisch
End-of-Injection Behavior of Diesel Sprays Measured With X-Ray Radiography
Online Contents | 2012
|Time-Resolved and Quantitative Characterization of Highly Transient Gasoline Sprays by X-Radiography
SAE Technical Papers | 2002
|LES of diesel and gasoline sprays with validation against x-ray radiography data
Kraftfahrwesen | 2015
|LES of Diesel and Gasoline Sprays with Validation against X-Ray Radiography Data
SAE Technical Papers | 2015
|