On the Eulerian-Lagrangian Transform in the Statistical Theory of Turbulence

C. F: Wandel, O. Kofoed-Hansen

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    "Fundamental Problems in Turbulence" Conference Paper (see Abstr. 1962A024007). Two important types of probing of a turbulent velocity field droarr/dtoarr = voarr (voarr constant) and the Lagrangian probing defined by droarr/dtoarr = roarr (roarr t). Explicit expressions are derived for the transformation of autocorrelations and power spectra obtained by Eulerian and Lagrangian probing in the case of fully developed isotropic and homogeneous turbulence. The derivations are based on a statistical representation of the turbulent velocity field using the results of the equilibrium theory of turbulence. The Taylor (1921) hypothesis is verified in the limit of high probing velocities. The Hay-Pasquill (1960) conjecture relating the Lagrangian and Eulerian power spectra results as an approximation to the transformation equations. Application of the results to the theory of turbulent diffusion is indicated.
    Original languageEnglish
    JournalJournal of Geophysical Research: Atmospheres
    Volume67
    Issue number8
    Pages (from-to)3089-3093
    ISSN2169-9380
    Publication statusPublished - 1962

    Fingerprint Dive into the research topics of 'On the Eulerian-Lagrangian Transform in the Statistical Theory of Turbulence'. Together they form a unique fingerprint.

    Cite this