BOUND FOR THE COMPLEX WAVE VELOCITY OF AN UNSTABLE PERTURBATION WAVE OF AN INVISCID HETEROGENEOUS PARALLEL SHEAR FLOWS
Abstract
The present paper concerns with the study of the upper bound for the complex wave velocity of an unstable perturbation wave of an inviscid heterogeneous parallel shear flows. We have obtained a necessary condition of instability of the flow which leads to the reduction of Howard’s {1} semi circle for the bound of the complex wave velocity
Keywords
Heterogeneous parallel shear flows, perturbation, linear stability, Howard’s semi circle.
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