| Abstract: | The results of the author's earlier investigation of the stability of a partially viscous shock layer indicate that any plane-parallel flow may be absolutely unstable if for that flow there exists more than one normal instability mode. This assumption has been confirmed for a supersonic boundary layer at infinitely large Reynolds numbers. Two types of absolute instability, corresponding to two known types of branching of the dispersion relation, have been detected.Translated from Izvestiya Akademii Nauk SSSR, Mekhanika Zhidkosti i Gaza, No. 1, pp. 176–179, January–February, 1988. |
