A Numerical Study of Cavitating Flow Through Various Nozzle Shapes

971597

05/01/1997

Event
International Spring Fuels & Lubricants Meeting & Exposition
Authors Abstract
Content
The flow through diesel fuel injector nozzles is important because of the effects on the spray and the atomization process. Modeling this nozzle flow is complicated by the presence of cavitation inside the nozzles. This investigation uses a two-dimensional, two-phase, transient model of cavitating nozzle flow to observe the individual effects of several nozzle parameters. The injection pressure is varied, as well as several geometric parameters. Results are presented for a range of rounded inlets, from r/D of 1/40 to 1/4. Similarly, results for a range of L/D from 2 to 8 are presented. Finally, the angle of the corner is varied from 50° to 150°. An axisymmetric injector tip is also simulated in order to observe the effects of upstream geometry on the nozzle flow. The injector tip calculations show that the upstream geometry has a small influence on the nozzle flow. The results demonstrate the model's ability to predict cavitating nozzle flow in several different geometries.
Meta TagsDetails
DOI
https://doi.org/10.4271/971597
Pages
12
Citation
Schmidt, D., Rutland, C., and Corradini, M., "A Numerical Study of Cavitating Flow Through Various Nozzle Shapes," SAE Technical Paper 971597, 1997, https://doi.org/10.4271/971597.
Additional Details
Publisher
Published
May 1, 1997
Product Code
971597
Content Type
Technical Paper
Language
English