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- W2121199666 abstract "Two-point space correlations of streamwise fluctuations have been measured in the turbulent near wakes of two-dimensional bluff body models like 90-deg wedges, circular and rectangular cylinders in the Reynolds number range of 2x 104 to 10 5. Two single hot-wire probes operated by constant temperature anemometers were used for this purpose. The data show that the streamwise, lateral, and spanwise extents of eddies, in general, are larger in the free shear layer region compared to the centerline region of the turbulent near wakes. Integral scales increase with distance downstream. In particular, the streamwise and lateral integral scales increase linearly with distance after about 1.5 times the diameter or base height of the model. For 90-deg wedge models of different BR up to 25%, the correlation curves show similarity when length scale is nondimensionalized with the base height. The correlation curves for one BR models of different bluffness also indicate approximately similar trends. Hot-wire traces show intermittency between laminar and turbulent states in the region of free reattachment point for all two-dimensional models." @default.
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- W2121199666 date "1977-11-01" @default.
- W2121199666 modified "2023-09-26" @default.
- W2121199666 title "Velocity correlation structure in the turbulent near wakes of bluff bodies" @default.
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- W2121199666 doi "https://doi.org/10.2514/3.7458" @default.
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