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Experiments in Fluids

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01.02.2010 | Research Article

Flow field measurements in an optically accessible, direct-injection spray-guided internal combustion engine using high-speed PIV

verfasst von: S. H. R. Müller, B. Böhm, M. Gleißner, R. Grzeszik, S. Arndt, A. Dreizler

Erschienen in: Experiments in Fluids | Ausgabe 2/2010

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Abstract

High-speed particle image velocimetry has been applied to study the flow field of an optically accessible motored direct-injection spray-guided internal combustion engine. Based on recent improvements in all-solid-state diode-pumped laser- and CMOS camera-technology a large field of view (43 × 44 mm²) was achieved at 6 kHz resulting in a temporal resolution of 1° crank angle at 1,000 rpm. This allows the investigation of the temporal evolution of large-scale flow structures. The flow field was recorded during the latter half of the compression stroke for tumble flow conditions at 500, 1,000 and 2,000 rpm. An analysis of cycle-to-cycle variations has been performed from individual and ensemble-averaged cycles. The temporal evolution of the main vortex center and the kinetic energy shows a few individual cycles with strong variations from the mean caused by a substantially different flow regime. A quantification of cyclic variations using the kinetic energy is possible.

Vorheriger Artikel An experimental analysis of the turbulent structures generated by the intake port of a DISI-engine

Nächster Artikel Measurement of the noise generation at the trailing edge of porous airfoils

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Titel: Flow field measurements in an optically accessible, direct-injection spray-guided internal combustion engine using high-speed PIV
verfasst von: S. H. R. Müller
B. Böhm
M. Gleißner
R. Grzeszik
S. Arndt
A. Dreizler
Publikationsdatum: 01.02.2010
Verlag: Springer-Verlag
Erschienen in: Experiments in Fluids / Ausgabe 2/2010
Print ISSN: 0723-4864
Elektronische ISSN: 1432-1114
DOI: https://doi.org/10.1007/s00348-009-0742-2

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