Abstract:Theoretical model and numerical simulation of icing processes are necessary means to study the mechanism of condutor icing. Based on the theoretical model frame of conductor icing which is universal accepted, and combined with resonable physics parameterization schemes, a complete numerical calculation scheme is constructed and applied to theoretically simulate the conductor icing processes cased by rime and glaze. Evolution of the icing processes are numerical modeling and the variation characteristics under rime, glaze and rime&glaze mixed conditions are described. The results show that the increasing curve of ice-coat under rime is generally characterized by a form of logarithmic curve, with ice-coat increasing rapidly at beginning and gradually wear off. Whereas the ice-coat increases with icing time under glaze condition,with ice quality growing more obvious than that of ice thickness. Under equivalent rime&glaze mixed condition, the increasing curve of ice-coat is much complicated due to transformation between the dry and wet increasing mechanisms, which is different from either rime or glaze icing. And results show three types of icing have some wet increasing charcteristics at the beginning of icing processes. This paper theoretically reveals the mechanisms and evolution characteristics of condutor icing under rime, glaze and rime&glaze mixed conditions , and has some theoretical reference values.