Analysis of equations of hydraulic calculation of gas pipeline under developed flow mode

The article discusses the study of the gas-dynamic state of a linear gas pipeline section and the development of an algorithm for calculating the static mode of operation of a hydraulic network. This decision takes into account all the power factors with a constant slope of the pipeline. Computational experiments established three modes of gas flow through a pipe with a rise upward, with a slight downward slope and a large downhill also downward. The boundary between the last two flow regimes in an incompressible fluid hydraulics is known as the “pass point”.