Absolute and convective instabilities of two-dimensional bluff body wakes in ground effect

DOI10.1016/j.euromechflu.2007.09.006zbMath1147.76027OpenAlexW2024136758MaRDI QIDQ950513

Takafumi Nishino, Graham T. Roberts

Publication date: 30 October 2008

Published in: European Journal of Mechanics. B. Fluids (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1016/j.euromechflu.2007.09.006

zbMATH Keywords

linear stability analysisvortex shedding

Mathematics Subject Classification ID

Vortex flows for incompressible inviscid fluids (76B47) Absolute and convective instability and stability in hydrodynamic stability (76E15) Jets and cavities, cavitation, free-streamline theory, water-entry problems, airfoil and hydrofoil theory, sloshing (76B10)

Uses Software

• Matlab

Cites Work

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• Local and global instability properties of separation bubbles
• Nonlinear self-sustained structures and fronts in spatially developing wake flows
• Vortex shedding from a circular cylinder near a moving ground
• Absolute instability in the near-wake of two-dimensional bluff bodies
• Global dynamics of symmetric and asymmetric wakes
• Absolute and convective instabilities of plane turbulent wakes in a shallow water layer
• Direct numerical simulation of ‘short’ laminar separation bubbles with turbulent reattachment
• The stability of laminar symmetric separated wakes
• Steep nonlinear global modes in spatially developing media

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