Aj. Yule et Mr. Mirza, THE EFFECT OF BOUNDARY-CONDITIONS ON THE DOWNSTREAM PENETRATION OF PULSED SPRAYS AFTER IMPACTION ON A FLAT SURFACE, PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART D-JOURNALOF AUTOMOBILE ENGINEERING, 210(3), 1996, pp. 249-260
An experimental study has been conducted of the wall sprays produced a
fter impaction on a flat surface by the pulsed spray from a single hol
e nozzle. The experiments are of relevance to direct injection diesel
engines and they extend the range of boundary conditions covered in pr
evious work, with variation of gas density, spray wall angle, gas cros
s-flow velocity and cross-flow turbulence level. The initial and bound
ary conditions are documented to provide a database which is suitable
for computational fluid dynamics (CFD) model validation of an importan
t aspect of diesel engine in-chamber flow. Previous work in the area i
s described and published empirical correlations are reviewed. The mea
surements of wall spray penetration as a function of time are presente
d and described and a correlation equation is proposed which fits the
data with good accuracy.