The twirled stream of the conducting liquids in narrow pipes at influence of a magnetic field

The approached equations of dynamics of viscous conducting liquids are received at its movement in the axial-symmetric channel with the non-conducting walls, taking place in a cross-section magnetic field. These equations are used for the analysis of joint influence of a stream twist and intensity of a magnetic field on character of the twirled current in an entrance site of the channel. Estimations on influence of Hartman and Reynolds numbers on development of the tendency to formation of returnable movements are lead.