| Abstract: | The results of the numerical simulation of three problems of ideal gas flow with shock waves, which admit self-similar solutions,
are presented. These problems are the double Mach-type reflection of a shock from a wedge, the breakdown of a combined discontinuity
on a 90° sharp corner, and the outflow of a supersonic jet from an expanding slot. It is shown that for certain input data
the self-similar solution may become unstable and is replaced by a fluctuating flow. The reasons for the generation of these
fluctuations and their mechanism are discussed.
Volgograd. Translated from Izvestiya Rossiiskoi Akademii Nauk, Mekhanika Zhidkosti i Gaza, No. 4, pp. 166–175, July–August,
1998. |
