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.
|Number of pages||3|
|Publication status||Published - 20 Mar 2005|
|Event||6th KSME-JSME Thermal & Fluids Engineering Conference - Jeju, Korea, Republic of|
Duration: 20 Mar 2005 → 23 Mar 2005
|Conference||6th KSME-JSME Thermal & Fluids Engineering Conference|
|Country/Territory||Korea, Republic of|
|Period||20/03/05 → 23/03/05|