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Bispectral measurements in turbulence

  • K. S. Lii (a1), M. Rosenblatt (a1) and C. Van Atta (a1)

Abstract

A bispectral analysis of high Reynolds number turbulent velocity-derivative data is carried out. The computations suggest that contributions of wavenumber triplets to the rate of vorticity production and spectral transfer are non-local in wavenumber space and comparable over the whole range of wavenumbers studied. Statistical resolvability of the bispectral estimates is obtained. An appendix on the asymptotic behaviour of bispectral estimates is given.

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Bispectral measurements in turbulence

  • K. S. Lii (a1), M. Rosenblatt (a1) and C. Van Atta (a1)

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