The invention belongs to the field of
electric power systems and relates to a two-dimensional numerical
simulation method for an
icing process of a
power transmission line. Based on the lagrangian method, the invention provides the two-dimensional numerical
simulation method for a surface rime
icing process of the
power transmission line. A Reynolds-averaged Navier-Stokes (RANS) equation and shear-stress-transport-k-
omega (SST-k-
omega) turbulence model of non-steady
incompressible flow is solved by adopting a semi-implicit method for pressure linked equations (SIMPLE)
algorithm on a staggered grid so as to obtain an air flow field; movement tracks of super-cooled water droplets in the flow field are tracked by adopting the lagrangian method to obtain the transient local
collision rate of all control volumes on the surface of the
power transmission line; solving is performed based on an
icing thermodynamic equation established by a Messinger control volume method so as to obtain the rime icing temperature of all the control volumes, and the icing process is simulated by combining an icing
time marching method. Indicated by results, predicted ice shapes are better fitted with
test measurement data in literature, and therefore, the two-dimensional numerical
simulation method for the icing process of the power
transmission line is feasible and effective.