THEORETICAL JUSTIFICATION OF METHODS FOR RAPID ELIMINATION OF ICE BLOCKS ON RIVERS

Abstract

The article shows that it is the pulsed release of water can be considered when creating a water jet to destroy the ice with a long range. Tests of water emissions at high speeds, more than a few tens of meters per second, found that the emissions occur in the form of a dispersed jet, which is quickly sprayed. The main destabilizing factor of the jet, which triggers the external mechanisms of its destruction is turbulence. Combating turbulence by providing a smoother flow near the walls of the channel and nozzle shifts the beginning of the turbulence process, but does not eliminate it. Thus, traditional hydrodynamic approaches do not significantly affect turbulence. The purpose of this work is a theoretical substantiation of the method of rapid destruction of ice jams on rivers during the ice drift. To achieve this goal, the following tasks were solved: development of a theoretical justification for the destruction of ice using a discrete high-velocity jet; estimation of optimal jet parameters with the help of computer modeling; determination of the main parameters of the device with a quantitative assessment of the possibility of destruction of ice layers of different sizes. Conclusion. Theoretical substantiation of the method of rapid destruction of ice jams on rivers during the ice drift, the assessment of the optimal parameters of the water jet using computer simulation, the main parameters of the device with a quantitative assessment of the possibility of destruction of ice layers of different sizes