Browse Publications Technical Papers 950080
1995-02-01

Direct Injection Diesel Sprays and the Effect of Cavitation and Hydraulic Flip on Atomization 950080

An investigation into the different flow structures which exist in the holes of direct injection nozzles and their corresponding large scale acrylic models is described.
Some effects of different experimental methods are discussed. Results obtained under steady flow conditions are compared with those from transient tests. The correct use of large scale models is found to enable the interpretation and clarification of the results obtained with actual nozzles.
The effect of flow cavitation in the nozzle holes is clarified. New information concerning the state of the injected fuel is included. The relationships between cavitation and the spray abnormality, hydraulic flip, and between cavitation and atomization are established. The spray characteristics of single hole nozzles are contrasted with those of standard multihole sac type nozzles. The causes of unequal sprays in two stage VCO injectors are studied, and a new flow singularity, which causes a spray abnormality and flow rate discontinuity is identified.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Preview Document Add to Cart
Members save up to 16% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

Possible Influence of High Injection Pressure on Diesel Fuel Stability: A Review and Preliminary Study

2009-01-1878

View Details

TECHNICAL PAPER

Experimental Study of Cavitation in the Nozzle Hole of Diesel Injectors Using Transparent Nozzles

950290

View Details

TECHNICAL PAPER

On the Correction of Interference Effects in Open Jet Wind Tunnels

960671

View Details

X