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Analysis of a Diesel Spray Using a Mechanical Slicing Device
KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.), Internal Combustion Engines.ORCID iD: 0000-0001-9483-7992
Scania (CFD).
2001 (English)Report (Refereed)
Abstract [en]

This paper gives a summary of image velocimetry measurements performed in a sliced diesel spray. The slicing of the spray was necessary to achieve sufficient image quality in the more dense regions of the spray. The images were double exposed to allow auto-correlation based velocimetry. The illumination was achieved with a xenon flashlight behind the spray and consequently the droplets were visible as dark shadows. Images were acquired from different points downstream from the nozzle, and a number of different radii were employed at every position. In the images the smaller droplets seem to be spherical, while the larger ones are distorted due to high weber numbers. Computer simulations indicate that large droplets may reach high weber numbers when passing through the slit, and that some of these large droplets break up.

Place, publisher, year, edition, pages
Society of Automotive Engineers, 2001.
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-181478OAI: oai:DiVA.org:kth-181478DiVA: diva2:899515
Note

NR 20160224

Available from: 2016-02-02 Created: 2016-02-02 Last updated: 2016-02-24Bibliographically approved

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Cronhjort, Andreas
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Internal Combustion Engines
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