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We present results of 3D numerical simulations of magnetically confined,radiatively driven stellar winds of massive stars, conducted using theastrophysical MHD code Pluto, with a focus on understanding the rotationalvariability of radio and sub-mm emission. Radiative driving is implementedaccording to the Castor, Abbott and Klein theory of radiatively driven winds.Many magnetic massive stars posses a magnetic axis which is inclined withrespect to the rotational axis. This misalignment leads to a complex windstructure as magnetic confinement, centrifugal acceleration and radiativedriving act to channel the circumstellar plasma into a warped disk whoseobservable properties should be apparent in multiple wavelengths. Thisstructure is analysed to calculate free-free thermal radio emission anddetermine the characteristic intensity maps and radio light curves.

Winds of Massive Magnetic Stars: Interacting Fields and Flow