The capture zone and impigement cloud droplets on cylinder

This article describes a mathematical model of calculating the capture zones and impingement of cloud droplets in air flow containing supercooled water droplets ahead of the cylinder. Circular cross-sectional shape of bodies is common for high voltage power lines, cables in bridge construction and some protruding aircraft parts. The knowledge of capture zones and impingement of cloud droplets is necessary for predicting water film formation and icing on the cylindrical surfaces. The mathematical model is based on numerical integration of motion equations for a droplet; the resistance force and the velocity field modeled on the basis of ideal incompressible fluid has been taken in consideration. The calculated values for the capture coefficient and the angle characterizing the impingement zone agree with the data obtained by other authors.