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发表于 2005-4-22 12:06:48
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关于涡旋
粗浅看法:1。从什么地方也看不出eddy有扰动的意思, 倒是看出了eddy有逆流或违反潮流的意思,呵呵。2,在大英百科上查到这样一段话,希望是真的:http://search.eb.com/eb/article?tocId=9076782&query=eddy%20vortex&ct=
rotary oceanic current, a large-scale eddy that is produced by the interaction of rising and falling tides. Similar currents that exhibit a central downdraft are termed vortexes and occur where coastal and bottom configurations provide narrow passages of considerable depth. Slightly different is vortex motion in streams; at certain stages of turbulent flow, rotating currents with central updrafts are formed. These are called kolks, or boils, and are readily visible on the surface.
Notable oceanic whirlpools include those of Garofalo (supposedly the Charybdis of ancient legend), along the coast of Calabria in southern Italy, and of Messina, in the strait between Sicily and peninsular Italy. The Maelstrøm (from Dutch for “whirling stream”) located near the Lofoten Islands, off the coast of Norway, and whirlpools near the Hebrides and Orkney islands are also well known. A characteristic vortex occurs in the Naruto Strait, which connects the Inland Sea (of Japan) and the Pacific Ocean.
特别关注这句话
Slightly different is vortex motion in streams;
3,我不认为前面那个陶先生的书里的解释有何不可。4,这个问题的确很有意思,也应该存在争议。不耻下问是美德。不知者这不怪,怪不知者无知,岂不是自己更....?
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