Quasi one-dimensional model and analytical solution of the problem of wave propagation in the pipeline with a damper of pressure disturbances.

With the account of the forces of friction and gravity, the local component of the force of inertia, an analytical solution of the problem of the distribution of pressure and fluid velocity perturbations at the elementary section of the pipeline with the air chamber is obtained, with full or partial termination of the selection. The account of the air chamber is done according to I.A.Charniy. The equations of the static pressure and flow rate, built due to N.E.Zhukovsky equations are solved by variable distribution method for mixed boundary conditions. On the basis of the solution a computational experiment carried out, the results of which revealed the features of smoothing (conversion) the pressure disturbances and speed depending on various parameters, including the volume of the air chamber.