Evaluation of Roughness Effects on Ice Adhesion

Abstract

In this study, the adhesion strength of ice to bare aluminum substrates with different values of surface roughness is investigated. A thin glaze ice accumulation is formed on the substrate surface within an icing wind tunnel facility. The adhesion strength between the ice and the metal samples is measured by means of a permanent magnet shaker. Ice de-bonding occurs in the interface between the ice and the aluminum. The experimental results reveal that the ice adhesion strength is significantly dependent on the degree of surface roughness of the respective aluminum substrate.