Turbulence statistics in smooth wall oscillatory boundary layer flow
Turbulence statistics in smooth wall oscillatory boundary layer flow
复制标题
光滑壁振荡边界层流中的湍流统计
DOI:
10.1017/jfm.2018.403
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发表时间:
2018
影响因子:
3.7
通讯作者:
Van Der A D
中科院分区:
文献类型:
--
作者:
Van Der A D
Turbulence characteristics of an asymmetric oscillatory boundary layer flow are analysed through two-component laser-Doppler measurements carried out in a large oscillatory flow tunnel and direct numerical simulation (DNS). Five different Reynolds numbers, at phases corresponding to the onset of low-speed streak breaking, because of the intermittency of the velocity fluctuations at these times. In particular, the flatness of the streamwise velocity fluctuations reaches values of the order of ten, while the flatness of the wall-normal velocity fluctuations reaches values of several hundreds. Far from the wall, at locations where the vertical gradient of the streamwise velocity is zero, the skewness is approximately zero and the flatness is approximately equal to 3, representative of a normal distribution. At lower elevations the distribution of the fluctuations deviate substantially from a normal distribution, but are found to be well described by other standard theoretical probability distributions.
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DOI:
--
发表时间:
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期刊:
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Y. Matsuo
DOI:
10.1007/978-3-642-73948-4_32
发表时间:
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期刊:
--
影响因子:
--
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P. Spalart;B. Baldwin
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P. Spalart;B. Baldwin
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E. Foti
DOI:
--
发表时间:
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期刊:
影响因子:
--
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F. Durst;R. Müller;J. Jovanović
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J. Jovanović
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Zhen Cheng;J. Chauchat;T. Hsu;J. Calantoni
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