On the vertical oscillations of accretion disks in semidetached binaries

The paper deals with vertical (perpendicular to the equatorial plane) oscillations in the accretion disks of semi-separated binaries. It is shown that the interaction of a stream from the inner Lagrangian point with the outer edge of the accretion disk can raise standing waves affects the thickness of the disk at different phases. Results of three-dimensional numerical modelling of the flow sructure in accretion disks are presented as well as their comparison with theoretical estimates.