Experimental investigation into droplet impingement upon moving films using high speed video and thermal imaging
Mitchell, Antony J. and Simmons, Kathy and Hann, David (2015) Experimental investigation into droplet impingement upon moving films using high speed video and thermal imaging. In: ASME 2015 International Mechanical Engineering Congress & Exposition (IMECE 2015), 13-19 Nov 2015, Houston, Texas, USA.
Aeroengine bearing chambers are geometrically complex, typically containing shafts, bearings, seals and stationary components. Oil is supplied for lubrication and cooling and so the chamber contains a highly rotating two-phase (oil/air) flow where the oil is typically present as droplets, ligaments, mist and films. These films may be thick or thin and film speed varies with chamber location. It is desirable to know a priori the outcome of a droplet-film impact event in terms of mass, momentum and energy transfer.
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