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Deposition of Ingested Volcanic Ash on Surfaces in the Turbine of a Small Jet Engine
Author(s) -
Shinozaki Maya,
Roberts Kevin A.,
van de Goor Bennie,
Clyne T. William
Publication year - 2013
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.201200357
Subject(s) - deposition (geology) , nozzle , volcanic ash , materials science , jet (fluid) , particle (ecology) , jet engine , particle size , turbine , volcano , mechanics , acceleration , composite material , metallurgy , aerospace engineering , chemical engineering , physics , geology , classical mechanics , engineering , geochemistry , paleontology , oceanography , sediment
The deposition characteristics of ingested volcanic ash were studied using a small aeroengine. Deposition was assessed using a borescope. Deposition mainly occurred on the nozzle guide vane (see Figure). A numerical model has been used to predict particle acceleration and heating. It is observed that larger particles are more likely to adhere. Larger particles are predicted to be sufficiently hot and are more likely to hit surfaces. Estimated values of Stokes numbers are consistent with the observations.