Abstract
There is the relevant issue of cleaning the ducts walls from dust deposits on industrial plants, workshops and production lines equipped with exhaust ventilation systems. Improving the efficiency of the process of cleaning air ducts from dust depends on the long-range of compact jets. The mathematical model is based on the classical solution of the "submerged jet" problem propagating in a stationary medium. The use of this model made it possible with sufficient accuracy to estimate the parameters of the range of compact jets when operating aspiration systems. Studies have shown that the presented model can be used to analyze the state of the pipelines of the suction networks and dust collection plants.