Assessment of scavenge efficiency for a helicopter particle separation system

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DOIResolve DOI: http://doi.org/10.4050/JAHS.57.022007
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TypeArticle
Journal titleJournal of the American Helicopter Society
ISSN2161-6027
Volume57
Issue2
Pages4148; # of pages: 8
AbstractThe effectiveness of a helicopter particle separation system has been numerically assessed at practical operating conditions and sand environments for various scenarios. The particle separation mechanism and its limitations are revealed by the predicted flow field characteristics and particle trajectories. The separation-by-inertia concept is effective for removing large particles, but problematic for small particles of diameter ≤36 μm for the configuration and operating conditions considered in the present study. It is also found that particle size, shape factor, and rebound characteristics exert substantial effects on particle scavenge efficiency. However, the effects of gravity, particle inlet velocity, inlet mass distribution, and engine-operating conditions on scavenge efficiency are minor or limited. Finally, a few suggestions for further investigation on engine particle separation systems are included.
Publication date
PublisherAHS International
LanguageEnglish
AffiliationAerospace; National Research Council Canada
Peer reviewedYes
NPARC number21269133
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Record identifierb2b2babf-5ffc-4648-bb8c-5e3f312512ec
Record created2013-12-09
Record modified2016-05-09
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