X-Ray Radiography and CFD Studies of the Spray G Injector

Piotr Strek, Daniel Duke, Andrew Swantek, Alan Kastengren, Christopher F. Powell, David P. Schmidt

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

20 Citations (Scopus)


The salient features of modern gasoline direct injection include cavitation, flash boiling, and plume/plume interaction, depending on the operating conditions. These complex phenomena make the prediction of the spray behavior particularly difficult. The present investigation combines mass-based experimental diagnostics with an advanced, in-house modeling capability in order to provide a multi-faceted study of the Engine Combustion Network's Spray G injector. First, x-ray tomography is used to distinguish the actual injector geometry from the nominal geometry used in past works. The actual geometry is used as the basis of multidimensional CFD simulations which are compared to x-ray radiography measurements for validation under cold conditions. The influence of nozzle diameter and corner radius are of particular interest. Next, the model is used to simulate flash-boiling conditions, in order to understand how the cold flow behavior corresponds to flashing performance.

Original languageEnglish
Title of host publicationSAE 2016 World Congress and Exhibition
PublisherSAE International
Number of pages13
Publication statusPublished - 5 Apr 2016
Externally publishedYes
EventSAE World Congress 2016 - Cobo Center, Detroit, United States of America
Duration: 12 Apr 201614 Apr 2016

Publication series

NameSAE Technical Papers
PublisherSAE International
ISSN (Print)0148-7191


ConferenceSAE World Congress 2016
Abbreviated titleSAE 2016
Country/TerritoryUnited States of America
Internet address

Cite this