What is it about?

This paper focuses on the spatial development of hyper-breakable vorticity in a supersonic coaxial flow with an annular swirl by adding small random perturbations at a Mach number of 1.5. The novel vorticity includes the elements of centrifugal, barotropic, and shear instabilities.

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Why is it important?

The results show the emergence of peculiar vortical structures and their rapid breakdown that differs from traditional swirling flows. It is noteworthy that the instability characteristic is capable of relaxing compressibility effects. The findings present the elements required for a large-scale vortex breakdown at a short distance in supersonic flows and provide new insights into the nature of vortices in a supersonic turbulent field.

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This page is a summary of: Development of specific structures occurring from hyper-breakable vorticity, Physics of Fluids, July 2019, American Institute of Physics, DOI: 10.1063/1.5100643.
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