RT Journal Article
ID 27d988696f65ec93
A1 Wahlin, Fredrik
A1 Cronhjort, Andreas
T1 IMPINGING DIESEL SPRAYS
JF Atomization and Sprays
JO AAS
YR 2008
FD 2007-08-02
VO 18
IS 2
SP 97
OP 127
AB Diesel fuel sprays from a common-rail injector have been optically investigated with respect to their macroscale characteristics. The tested nozzle designs were of standard plain orifice type, as well as the impinging-spray type, in which two orifices intersect at a specific angle at the exit. Testing was conducted using a pressurized vessel at room temperature. The impinging sprays were found to be low penetrating and widely dispersed compared to the nonimpinging sprays. The shape of the impinging sprays was as one homogeneous spray with no trace of individual sprays. It was found that impinging diesel sprays can be predicted in a manner similar to standard nonimpinging sprays, using a dimensionless penetration correlation. The cone angle of the impinging sprays increases with the impingement angle, and in contrast to nonimpinging sprays, appears insensitive to ambient density. The results indicate that the impinging spray has a larger spray volume at lower ambient densities. However, at higher ambient densities, the volume of the nonimpinging sprays is larger.
PB Begell House
LK https://www.dl.begellhouse.com/journals/6a7c7e10642258cc,3bcb27ce5a5a256c,27d988696f65ec93.html