ESTIMATION OF THE ROUGHNESS PERIOD OF ANTI-ICE BODY COATINGS IN AIR FLOW WITH SUPERCOOLED DROPLETS

Abstract

Aim. Geometric properties of ice-phobic surfaces are mathematically simulated to provide the anti-icing effect. Methodology. Numerical calculations of droplet motion in the vicinity of a cylinder simulating the leading edge of a wing relies on the use of previously published mathematical models of physical processes. Results. As applied to the problem of icing of aircrafts, the relief configuration of hydrophobic coatings of a solid is estimated in air flow with supercooled droplets, in which liquid drops do not freeze to the streamlined body as a result of collisions with its surface. Research implications. The results of the study can be used to produce a relief of a hydrophobic coating for a specific range of flying vehicle flight conditions.

Keywords

• metastable droplets
• hydrophobic coatings
• ice accretion