EDDY
(ED-ee)
A
current of fluid running back, or in a direction contrary to the
main current. Common
clues: Whirlpool;
Canoer's worry; Current event?; Sea swirl; Mini-whirlpool;
Vortex; Jacuzzi effect; Bit of a whirl; It may be found near a
drain; Small revolver? Crossword
puzzle frequency:
8 times a year Frequency
in English language:
16751 / 86800
News:
Salmon
River eddy creates ice circle Video: Rafting
and Fishing Idaho’s Main Salmon River
Used
with permission: Watts
Hudgens
In
fluid dynamics, an eddy
is the swirling of a fluid and the reverse current (water)
created when the fluid flows past an obstacle. The moving fluid
creates a space devoid of downstream-flowing water 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.
This
article is licensed under the GNU Free Documentation License
(http://www.gnu.org/copyleft/fdl.html).
It uses material from http://en.wikipedia.org/wiki/Eddy
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