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An investigation of string cavitation in a true-scale fuel injector flow geometry at high pressure
journal contribution
posted on 2010-04-08, 09:02 authored by Ben Reid, Graham HargraveGraham Hargrave, Colin GarnerColin Garner, Graham WigleyString cavitation has been studied in an optical automotive size fuel injector with true-scale flow
geometry at injection pressures of up to 2050 bar. The multihole 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. A dependency on Reynolds number was observed in the formation of
the visible, vapor filled vortex cores. 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.
History
School
- Mechanical, Electrical and Manufacturing Engineering
Citation
REID, B.A.....et al., An investigation of string cavitation in a true-scale fuel injector flow geometry at high pressure. Physics of Fluids, 22(031703)Publisher
© American Institute of PhysicsVersion
- VoR (Version of Record)
Publication date
2010Notes
This article was published in the journal, Physics of fluids and is also available at: http://dx.doi.org/10.1063/1.3372174ISSN
1070-6631Language
- en