PIV Study of the Effect of Piston Motion on the Confined Swirling Flow in the Scavenging Process in 2-Stroke Marine Diesel Engines

Sajjad Haider (Invited author), Knud Erik Meyer (Invited author), Jesper Schramm (Invited author), Stefan Mayer (Invited author)

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

The effect of piston motion on the incylinder swirling flow for a low speed, large two-stroke marine diesel engine is studies using the stereoscopic PIV technique. The measuremenrs are conducted at 5 cross sectional planes along the cylinder length and at piston positions covering the air intake ports by 0%, 25%, 50% and 75%. The resulting swirling flow decays downstrams the bulk direction and variation in Reynolds number has only effect in terms of magnitud. When the piston translates towards the top-dwad-centra, it gradually starts closing the intake ports. The tangential velocity profile changes fraomRankine/Burges vortes to forced vortex and exial velocity profile changes from wake-like to jet-like and then again to wake-like profile.
Original languageEnglish
Title of host publicationCIMAC Congress 2010
PublisherConseil International des Machines a Combustion
Publication date2010
Pages270
Publication statusPublished - 2010
EventCIMAC Congress - Bergen, Norway
Duration: 1 Jan 2010 → …

Conference

ConferenceCIMAC Congress
CityBergen, Norway
Period01/01/2010 → …

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