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*b : irregular atmospheric motion especially when characterized by up-and-down currents
*b : irregular atmospheric motion especially when characterized by up-and-down currents
*c : departure in a fluid from a smooth flow.
*c : departure in a fluid from a smooth flow.
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<center>For lessons on the [[topic]] of '''''Turbulence''''', follow [http://nordan.daynal.org/wiki/index.php?title=Category:Transition this link].</center>
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==Description==
==Description==
In [http://en.wikipedia.org/wiki/Fluid_dynamics fluid dynamic]s, turbulence or turbulent flow is a fluid regime characterized by [[chaos|chaotic]], [[stochastic]] property [[change]]s. This includes low [[momentum]] diffusion, high momentum convection, and rapid variation of pressure and [[velocity]] in [[space]] and [[time]]. Flow that is not turbulent is called ''laminar flow''.
In [http://en.wikipedia.org/wiki/Fluid_dynamics fluid dynamic]s, turbulence or turbulent flow is a fluid regime characterized by [[chaos|chaotic]], [[stochastic]] property [[change]]s. This includes low [[momentum]] diffusion, high momentum convection, and rapid variation of pressure and [[velocity]] in [[space]] and [[time]]. Flow that is not turbulent is called ''laminar flow''.
