Presents the results of investigation of flow regimes radial motion of liquid. Proposed to use a change of the dependence of speed of the shift from of the rate of the shift from shifting stresses as the criterion,  allowing to define a transition moment from a continuous stream to the stream cavitation. Described the design  the experimental setup, an algorithm of constructing nomograms to determine the mode of movement in the continuous stream and  gas-liquid stream by water.