SIMULATION OF THE INTERACTION OF ICE CRYSTALS WITH THE SURFACE OF A FLYING VEHICLE

A physical and mathematical model of the movement of nonspherical particles in the two-phase fl ow over an aerodynamic body, allowing one to estimate the area of wetting of the body surface by these particles depending on their stochastic orientation in the fl ow, is proposed. On the basis of the heuristic model developed earlier, the coeffi cients of restoring the velocity components of the ice crystals colliding with the surface of a blunt-nosed body were calculated for values of the governing parameters of the collision process varying within a wide range. It is shown that the initial orientation of these crystals in the aerosol fl ow over the body infl uences the trajectories of their movement in the vicinity of the body
   
Author:  I. A. Amelyushkin and A. L. Stasenko
Keywords:  spheroids, blunt-nosed conic body, wetting area, restoration coeffi cient, particle scattering
Page:  576