(irregular flow of a fluid)
Turbulence (or turbulent flow)
is chaotic flow of a fluid.
It is characterized by changes in flow velocity
and pressure over space and time, and eddies,
i.e., circular or swirling flows, often lasting
only a short time.
Turbulence is in contrast to laminar flow in which
fluid flows in continuous lines.
Turbulence in the atmosphere is a contributor to seeing
and can be detected in gases, e.g., in stars or
clouds through the analysis of spectral lines.
core collapse supernova
Darcy velocity field
gravitational instability model
kilometer size barrier
molecular cloud turbulence
mixing length theory
magnetorotational instability (MRI)
Reynolds number (Re)