Weak disturbances propagation in two-phase annular dispersed flows

Peculiarities of distribution of weak disturbances in two-phase annular dispersed flows with a liquid film on the channel wall and liquid drops in a flow nucleus, are discussed. Theoretical generalization of experimental results on velocities and damping of low pulse disturbances in two-phase flows is carried out. The possibility of estimating the effective diameter of drops in the nucleus of an annular dispersed flow is stated on the basis of information on the motion of the weak pulse