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Small-Scale Isotropy and Ramp-Cliff Structures in Scalar Turbulence

Dhawal Buaria1, Matthew P Clay2, Katepalli R Sreenivasan1,3

  • 1Tandon School of Engineering, New York University, New York, New York 11201, USA.

Physical Review Letters
|February 5, 2021
PubMed
Summary

Passive scalars in fluid turbulence show anomalies due to ramp-cliff structures. Increasing the Schmidt number (Sc) restores small-scale isotropy, as shown by direct numerical simulations.

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