Abstract
The article deals with the movement of a water stream on a slope, with the main regularities connecting the parameters of the flow and the underlying surface, caused by the action of the driving forces and the forces of resistance to movement. The impact of these forces, which ensure the acceleration or deceleration of the water flow in view of the flow velocity, can be represented in the form of a power balance. In the analysis of the water flow, the equation of motion of the temporary water flow is obtained, which allows solving the following main tasks: analysis of the possibility of water flow on certain underlying surfaces, determination and analysis of flow parameters during acceleration, braking or even motion, and others. Also, this equation can be used in solving inverse problems, for example, in determining the coefficient of hydraulic roughness, the potential of erosion resistance, and other parameters of the stokoforming surface. The analysis allows to judge the possibility of influencing the water flow with various anti-erosion underlying surfaces with a given hydraulic roughness and other obstacles, resulting in an effective control of the movement of the temporary water flow.
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