История изучения нерегулярного отражения скачка уплотнения от оси симметрии сверхзвуковой струи с образованием диска Маха

Supersonic jet has a periodic structure consisting of repeating cells barrel-shaped. If the nonisobaric jet, which is defined as the ratio of pressure at the nozzle of a supersonic nozzle to the pressure in the environment is significantly different from unity, the shock-wave structure of the jet are clearly visible direct shocks, which are referred to the Mach disk. Mach disk has significant dimensions only in the first barrel of jet and sometimes in the second. However, its presence strongly influences the geometry of the jet downstream. Failures in the construction methods of calculation of the jets, as a rule, largely related to the inability to locate the position of the Mach disk. On the other hand, the flow in the vicinity of the Mach disk is large pressure gradients, viscous-inviscid strong interaction. In the jets of rocket engines in the areas of the Mach disk occurs and dissociation of the combustion reaction, which leads to a significant increase in temperature, pressure and radiation flux. Despite the practical importance of the task complete theory of the formation of Mach disk in the supersonic jet is still missing. The following are the necessary information about the triple configurations of shock waves, describes the model of "stationary Mach configuration" as well as justification for its application to the problem of calculating the Mach disk in the supersonic jet of an ideal gas.