EDDY

Eddy

In fluid dynamics, an eddy is the swirling of a fluid and the reverse current created when the fluid flows past an obstacle. The moving fluid creates a space devoid of downstream-flowing fluid on the downstream side of the object. Fluid behind the obstacle flows into the void creating a swirl of fluid on each edge of the obstacle, followed by a short reverse flow of fluid behind the obstacle flowing upstream, toward the back of the obstacle. This phenomenon is most visible behind large emergent rocks in swift-flowing rivers.

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eddy

Noun

  1. A current of air or water running back, or in an opposite direction to the main current.
  2. A circular current; a whirlpool.

Verb

  1. To form an eddy; to move in, or as if in, an eddy; to move in a circle.


The above text is a snippet from Wiktionary: eddy
and as such is available under the Creative Commons Attribution/Share-Alike License.

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