Vortex flows as a research area focus on fluid motion characterized by rotational structures, including isolated vortices, vortex sheets, and complex turbulent vortical fields, in gases, liquids, or plasmas. Investigations address the generation, stability, interaction, and breakdown of vortices, as well as vortex-induced transport, mixing, and momentum/energy redistribution. The field combines theoretical fluid mechanics, numerical simulation (e.g., direct numerical simulation and large-eddy simulation), and experimentation to study phenomena such as coherent structures, vortex reconnection, and transition to turbulence, with applications in aerodynamics, propulsion, geophysical and astrophysical flows, and engineering systems where control or exploitation of vorticity is critical.
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