
It was found that, within the selected range of variation of the separator parameters, an increase in the valve opening degree from 20% to 50% leads to a decrease in the hydraulic resistance coefficient by 19.6 times, and an increase in this degree from 20% to 100% is associated with a 42.4-fold decrease in the studied characteristic. In contrast to the known methods of constructing simulation models, the proposed analytical method of calculation is based on a qualitative assessment of the specified coefficient in the implementation of throttling of fluid flows in the “separator-rotary lock” unit, depending on the design and operating parameters of the process. The purpose of this work is to analyze the coefficient of hydraulic resistance in the separator of a direct-flow control valve with a rotary lock according to the approximation of the superposition of pressure losses in elementary local resistances. The need for an integrated approach to the analysis of the impact on the hydraulic resistance of various factors is noted (degree of spread $ \left( \right) $, Re and Fr is obtained. When designing hydraulic structures, inaccuracies in the existing calculation methods can lead to a decrease in the efficiency and reliability of the entire spillway structure as a whole. In most cases, a turbulent regime of fluid motion is observed in various applications, but to date, the theory of turbulence is not considered complete.

The study of the question of whether the patterns of hydraulic resistances are similar in a calm and turbulent flow is relevant in the design of hydraulic structures. One of the most important tasks of engineering hydraulics is to determine the energy loss during the motion of the fluid flow.
