Experiment and modelling of spray impingement from multi-hole DISI injectors

Essam Abo-Serie, Yujing Lin, Choongsik Bae

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Abstract

The characteristics of the impingement spray from a six-hole direct injection spark ignition engine (DISI) injector inside a constant volume optical chamber on a hot surface have been identified by direct visualisation and PDA system for different operating conditions. The results have been analyzed respected to post-impingement characteristics and employed to validate an impingement model which takes into account the effect of surface temperature, gas phase pressure, incident droplet velocity, incident angle and surface roughness. The impingement model provides a reasonable estimation of the post impingements droplets with respect to the post droplet size and direction trends for different operating conditions but overestimates the magnitude of velocity and mean diameter.
Original languageEnglish
Number of pages3
Publication statusPublished - 20 Mar 2005
Externally publishedYes
Event6th KSME-JSME Thermal & Fluids Engineering Conference - Jeju, Korea, Republic of
Duration: 20 Mar 200523 Mar 2005

Conference

Conference6th KSME-JSME Thermal & Fluids Engineering Conference
Country/TerritoryKorea, Republic of
CityJeju
Period20/03/0523/03/05

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