Integrated computation of micro-cavitation in gasoline injector atomization

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

The effect of micro-cavitation on 3-D structure of liquid atomization process through a gasoline injector nozzle is numerically investigated and visualized by a new type of integrated CFD technique. The present CFD analysis focused on primary breakup phenomenon of a liquid column which is closely related to the micro-cavitation, the consecutive formation of liquid film, and generation of droplets of a lateral flow in the outlet section of the nozzle. The governing equations for high-speed lateral atomizing injector nozzle flow taking into account the micro-cavitation generation based on the Barotropic LES-VOF model in conjunction with the CSF model are presented, and then an integrated parallel computation are performed to clarify the detailed atomization process coincident with the micro-cavitation of a high speed nozzle flow. Furthermore, we acquire the data which is difficult to confirm by experiment such as aspects and volume fraction of micro-cavity, liquid core shapes, spray angle and spray velocity profiles.

Original languageEnglish
Title of host publication11th International Annual Conference on Liquid Atomization and Spray Systems 2009, ICLASS 2009
PublisherILASS Americas/Professor Scott Samuelsen UCI Combustion Laboratory University of California Irvine, CA 92697-3550
ISBN (Electronic)9781617826535
Publication statusPublished - 2009
Event11th International Annual Conference on Liquid Atomization and Spray Systems, ICLASS 2009 - Vail, United States
Duration: 2009 Jul 262009 Jul 30

Publication series

Name11th International Annual Conference on Liquid Atomization and Spray Systems 2009, ICLASS 2009

Conference

Conference11th International Annual Conference on Liquid Atomization and Spray Systems, ICLASS 2009
CountryUnited States
CityVail
Period09/7/2609/7/30

ASJC Scopus subject areas

  • Surfaces, Coatings and Films

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  • Cite this

    Ishimoto, J. (2009). Integrated computation of micro-cavitation in gasoline injector atomization. In 11th International Annual Conference on Liquid Atomization and Spray Systems 2009, ICLASS 2009 (11th International Annual Conference on Liquid Atomization and Spray Systems 2009, ICLASS 2009). ILASS Americas/Professor Scott Samuelsen UCI Combustion Laboratory University of California Irvine, CA 92697-3550.