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Experimental study of a flow into an engine cylinder using PIV
KTH, School of Engineering Sciences (SCI), Mechanics.
KTH, School of Engineering Sciences (SCI), Mechanics.
2017 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesisAlternative title
Experimentell studie av strömningen in i en motorcylinder med PIV (Swedish)
Abstract [en]

This degree project is focused on the study of the tumble and the swirlmotions, which develop during the intake stroke, inside a cylinder of a Dieselengine.Nowadays, the reduction of fuel consumption and emissions is a primaryaspect for automotive companies, including Scania. Then, an efficient combustionprocess is required, and a fundamental role is played by tumble andswirl motion.These motions have been studied by means of the Particle Image Velocimetry(PIV) technique. In particular, two different cylinder head designshave been investigated, focusing on the structures present in the flow andtheir evolutions inside the cylinder. Finally, these results have been comparedwith LES results, in order to validate the latest. Analysing the swirl motion, it has been possible to identify three mainregions, along the cylinder, characterized by different vortex structures. Inaddition, the velocity field into the entire cylinder volume has been extractedby means of a three-dimensional three-component reconstruction.

Place, publisher, year, edition, pages
2017. , p. 139
Keywords [en]
Swirl motion, Tumble motion, PIV, intake stroke, Diesel engine.
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:kth:diva-211077OAI: oai:DiVA.org:kth-211077DiVA, id: diva2:1127576
External cooperation
Scania CV AB
Supervisors
Examiners
Available from: 2017-07-17 Created: 2017-07-17 Last updated: 2017-07-17Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
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  • de-DE
  • en-GB
  • en-US
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  • nn-NO
  • nn-NB
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  • Other locale
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Output format
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