Experimental Investigation of High Speed SLD Impact 2019-01-2006
The necessity of enhancing existing simulation tools to predict accurately the ice accretion cause by SLD is obvious. This paper proposes an experimental investigation of fast impinging supercooled large droplet (SLD) in non-icing conditions. Two main aspects of the impact event are analyzed and discussed: the impact dynamics as a function of the surface nature and the deposition rate of the liquid on the impingement surface for various conditions.
The data has been recorded and characterized at ambient pressure using a vertical wind/droplet tunnel. To avoid the droplets evaporation the relative humidity was controlled.
The morphology of impact was studied by backlighted imagery and quantitative results were obtained by image analysis. The deposition rate was obtained weighting the water accumulated on the impingement plate.
Virginel BODOC, Pierre Berthoumieu
International Conference on Icing of Aircraft, Engines, and Structures