期刊
EUROPHYSICS LETTERS
卷 72, 期 6, 页码 943-949出版社
IOP Publishing Ltd
DOI: 10.1209/epl/i2005-10323-8
关键词
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A celebrated universal aspect of wall-bounded turbulent flows is the von Karman log-law-of-the-wall, describing how the mean velocity in the stream-wise direction depends on the distance from the wall. Although the log-law is known for more than 75 years, the von Karman constant governing the slope of the log-law was not determined theoretically. In this letter we show that the von Karman constant can be estimated from homogeneous turbulent data, i.e. without information from wall-bounded flows.
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