Instability of a dusty vortex

• Published in: Journal of fluid mechanics Vol. 948
• Main Authors: Shuai, Shuai, Jeswin Dhas, Darish, Roy, Anubhab, Kasbaoui, M. Houssem
• Format: Journal Article
• Language: English
• Published: Cambridge, UK Cambridge University Press 10.10.2022
• Subjects: Breakdown; Critical mass; Feedback; Fluid mechanics; Free flow; Growth rate; Instability; JFM Papers; Mass; Modes; Simulation; Stability analysis; Structural stability; Taylor instability; Velocity; Vortices; Vorticity; Wavelengths; particle/fluid flow; vortex instability

We investigate the effect of inertial particles dispersed in a circular patch of finite radius on the stability of a two-dimensional Rankine vortex in semi-dilute dusty flows. Unlike the particle-free case where no unstable modes exist, we show that the feedback force from the particles triggers a n...