Impact and boiling characteristics of an impinging ethanol drop on a heated Al alloy surface

• Impact and boiling of ethanol drop on Al alloy is experimentally revealed. • Vapor layer created after impinging drop vanishes when TW is greater than TL. • Metallic surface with sufficiently high k guarantees an invariant TW during impact. • Occurrence pattern of disintegrating and splashing drop...
Ausführliche Beschreibung

• Impact and boiling of ethanol drop on Al alloy is experimentally revealed. • Vapor layer created after impinging drop vanishes when TW is greater than TL. • Metallic surface with sufficiently high k guarantees an invariant TW during impact. • Occurrence pattern of disintegrating and splashing drops are observed. • Significant differences are observed according to the existence of vapor film layer. Ausführliche Beschreibung