Browse Publications Technical Papers 2010-01-0622
2010-04-12

Large Eddy Simulation and Optical Studies of the Primary Break-up of a Thin Planar-Sheet Liquid Jet 2010-01-0622

Volume-of-fluid large-eddy-simulations (VOF-LES) and optical imaging results of the primary breakup of a pulsed planar-sheet liquid jet are presented and compared. The planar-sheet thickness pertains to the GDI outward-opening conical-sheet spray. The investigations include injection conditions of 0.5 and 1 MPa fuel pressure and 0.3 MPa ambient pressure. The objective of the study is to assess the predictive accuracy of the VOF-LES method for analysis of the Kelvin-Helmholtz (KH) instability and the primary breakup of a transient, pulsed, liquid sheet jet, through inclusion of the injector nozzle flow domain into the simulations. Thus, the simulations do not resort to prescription of the issuing liquid jet velocity boundary condition. The results show good qualitative and quantitative accuracy for prediction of the KH interface instability waves and the liquid-sheet breakup process for the conditions studied.

SAE MOBILUS

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

Access SAE MOBILUS »

Members save up to 43% off list price.
Login to see discount.
Special Offer: Purchase more aerospace standards and aerospace material specifications and save! AeroPaks off a customized subscription plan that lets you pay for just the documents that you need, when you need them.
X