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Title: String cavitation formation inside fuel injectors
Authors: Reid, Benjamin A.
Gavaises, M.
Mitroglou, N.
Hargrave, Graham K.
Garner, Colin P.
McDavid, R.M.
Issue Date: 2015
Publisher: © The Authors. Published by IOP Publishing LTD
Citation: REID, B.A. ...et al., 2015. String cavitation formation inside fuel injectors. Journal of Physics: Conference Series, 656, 012099.
Abstract: The formation of vortex or 'string' cavitation has been visualised at pressures up to 2000 bar in an automotive-sized optical diesel fuel injector nozzle. The multi-hole nozzle geometry studied allowed observation of the hole-to-hole vortex interaction and, in particular, that of a bridging vortex in the sac region between the holes. Above a threshold Reynolds number, their formation and appearance during a 2 ms injection event was repeatable and independent of upstream pressure and cavitation number. In addition, two different hole layouts and threedimensional flow simulations have been employed to describe how, the relative positions of adjacent holes influenced the formation and hole-to-hole interaction of the observed string cavitation vortices, with good agreement between the experimental and simulation results being achieved.
Description: This paper was presented at 9th International Symposium on Cavitation (CAV2015), Lausanne, 6-9th December. This is an Open Access Article. It is published by Institute of Physics under the Creative Commons Attribution 3.0 Unported Licence (CC BY). Full details of this licence are available at: http://creativecommons.org/licenses/by/3.0/
Sponsor: This work has been technically and financially supported by Caterpillar Inc. and the UK Technology Strategy Board. Project No, TP/3/DSM/6/I/15289.
Version: Published
DOI: 10.1088/1742-6596/656/1/012099
URI: https://dspace.lboro.ac.uk/2134/23280
Publisher Link: http://dx.doi.org/10.1088/1742-6596/656/1/012099
ISSN: 1742-6588
Appears in Collections:Conference Papers and Presentations (Mechanical, Electrical and Manufacturing Engineering)

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