The authors of the work studied two-dimensional axisymmetric wave disturbances in a pipe filled with water containing an end hemispherical bubble cluster made with a water-air bubble mixture. On the basis of results of numerical modeling, the dependence of the maximum pressure amplitude formed in the pipe on the geometric parameters of the cluster and the channel, as well as on the amplitude of the initial disturbance, was analyzed. It was established that for a hemispherical cluster with a radius of 60% or more of the channel radius, there is no amplification of the pressure wave for the considered initial volumetric concentrations. In cases where the cluster radius is less than 60% of the pipe radius, for the examined initial bubble contents, there exists a range of values for the volumetric gas content where a significant increase in wave amplitude is possible as a result of its interaction with the bubbly region.
