turbulence

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Related to turbulences: Turbulent fluid

tur·bu·lence

(tŭr'byū-lĕnts),
In cardiology, erratic motion.
[L. turbulentus, stirred up, fr. turbo, to disturb]

turbulence,

n casting term used to denote irregular flow of metal into a mold. May result in porosity.
References in periodicals archive ?
To characterize aeronautical turbulence one must specify its origin and its intensity.
Atmospheric turbulence is defined as "small-scale, irregular air motions characterized by winds that vary in speed and direction" [3].
In a more aeronautical field, turbulence can be defined as small-scale, short-term, random and frequent changes to the velocity of air.
The amount of turbulence depends on wind speed and obstruction size and shape.
Shear: When the direction or speed of wind changes dramatically within a short horizontal or vertical distance, an aircraft will experience turbulence when it flies through (typically a cumulonimbus).
Wake turbulence: An aircraft causes wake turbulence in its trail as it flies through the air.
Turbulence is separated into four levels of intensity.