Onset of turbulence in open liquid flows as a nonequilibrium noise-induced secondorder phase transition

It is shown that there is a profound analogy between the transition to turbulence in open liquid flows and the noise-induced excitation of oscillations of a pendulum with a randomly oscillating pivot. It is significant that this analogy is based not on the similarity of the equations describing these processes, but on the generality of the laws of the theory of oscillations. The existence of this analogy makes it possible to understand and account for numerous phenomena observed in both numerical simulations and real experiments. Moreover, this analogy suggests several recommendations to experimenters for achieving a more thorough suppression of undesirable turbulent pulsations in subsonic jets. Zh. Tekh. Fiz. 68, 31–39 (January 1998)