“…The development of a mathematical model is E. KUZNETSOV, V. NAHORNYI, T. KRENICKÝ -Gas Flow Simulation in the Working Gap… 299 based on a physical model of operation process that generalizes the analysis of experimental studies [3,19,20,21,22,23,24,25]. When calculating the IGBFS characteristics, it is usually assumed that the gas pressure in the gap space between the chambers does not differ from some averaged pressure in the chambers [9,10,17,18,34]. This occurs when the space size between the cameras is commensurate with the circumferential cameras length.…”