  In this paper we study centrifugal acceleration of particles moving along a
prescribed rotating curved trajectories. We consider the physical system
embedded in an isotropic photon field and study the influence of the photon
drag force on the acceleration process. For this purpose we study three major
configurations of the field lines: the straight line; the Archimede's spiral
and the dipolar field line configuration. By analysing dynamics of particles
sliding along the field lines in the equatorial plane we have found several
interesting features of motion. In particular, it has been shown that for
rectilinear field lines the particles reach the light cylinder (area where the
linear velocity of rotation exactly equals the speed of light) zone relatively
slowly for bigger drag forces. Considering the Archimede's spiral, we have
found that in cases when the field lines lag behind the rotation, the particles
achieve the force-free regime of dynamics regardless of the drag force. Unlike
this scenario, when the spiral is screwed up in an opposite direction there the
particles do not reach the force free regime, but tend to stable equilibrium
locations. Such a behaviour has been found for straight field lines as well.
