Journal article

Examining the inertial subrange with nanoscale cross-wire measurements of turbulent pipe flow at high Reynolds number near the centreline

Clayton P Byers, Marcus Hultmark, Ivan Marusic, Matt K Fu

JOURNAL OF FLUID MECHANICS | CAMBRIDGE UNIV PRESS | Published : 2021

Abstract

Highly resolved, two-component velocity measurements were made near the centreline of turbulent pipe flow for Reynolds numbers in the range . These unique data were obtained with a nanoscale cross-wire probe and used to examine the inertial subrange scaling of the longitudinal and transverse velocity components. Classical dissipation rate estimates were made using both the integration of one-dimensional dissipation spectra for each velocity component and the third-order moment of the longitudinal structure function. Although the second-order moments and one-dimensional spectra for each component showed behaviour consistent with local isotropy, clear inertial range similarity and behaviour we..

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Grants

Awarded by NSF


Awarded by Office of Naval Research (ONR)


Funding Acknowledgements

This work was supported by under NSF grant CBET-1510100 (program manager R. Joslin) and the Office of Naval Research (ONR) grant N00014-17-2309.