Abstract

The focus of this study is to analyze the self-similar scaling approach for decaying isotropic turbulence by comparing a Direct Numerical Simulation with theoretical results. Constraints on the similarity solution are used to show that the temporal evolution of the length scale set the exponent of decay, and a functional form for the dissipation scaling parameter is determined without any curve-fitting to the dissipation data. Collapse of the single time, two-point triple-correlations are shown, with the scaling parameter both differing from the classic analysis and being completely determined from the length scale and double-correlation scaling.

Original languageEnglish (US)
StatePublished - Jan 1 2019
Event11th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2019 - Southampton, United Kingdom
Duration: Jul 30 2019Aug 2 2019

Conference

Conference11th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2019
CountryUnited Kingdom
CitySouthampton
Period7/30/198/2/19

All Science Journal Classification (ASJC) codes

  • Atmospheric Science
  • Aerospace Engineering

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    Byers, C. P., MacArt, J. F., Mueller, M. E., & Hultmark, M. (2019). Similarity constraints in decaying isotropic turbulence. Paper presented at 11th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2019, Southampton, United Kingdom.