Wave-number–frequency spectrum for turbulence from a random sweeping hypothesis with mean flow
نویسندگان
چکیده
منابع مشابه
Wave-number-frequency spectrum for turbulence from a random sweeping hypothesis with mean flow.
We derive the energy spectrum in wave-number-frequency space for turbulent flows based on Kraichnan's idealized random sweeping hypothesis with additional mean flow, which yields the instantaneous energy spectrum multiplied by a Gaussian frequency distribution. The model spectrum has two adjustable parameters, the mean flow velocity and the sweeping velocity, and has the property that the power...
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ژورنال
عنوان ژورنال: Physical Review E
سال: 2012
ISSN: 1539-3755,1550-2376
DOI: 10.1103/physreve.86.066308