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3 - Turbulence

Published online by Cambridge University Press:  10 March 2021

Michael C. Gregg
Affiliation:
University of Washington
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Summary

Dimensional analysis for stratified turbulence defines the variables describing turbulence in the ocean, which are then used with the Reynolds decomposition to develop equations of motion and define key parameters, such as turbulent kinetic energy and the viscous dissipation rate. These are used in developing the Kolmogorov energy cascade and the accompanying cascade of scalar variance. Considering turbulent evolution and decay leads to consideration of strongly stratified turbulence and pancake eddies. Turbulent intermittence and statistics include expressions for estimating confidence limits. The turbulent equations are then used to develop expressions for estimating turbulent eddy coefficients from what can be measured. The chapter ends with a consideration of mixing efficiency.

Type
Chapter
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Ocean Mixing , pp. 71 - 110
Publisher: Cambridge University Press
Print publication year: 2021

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  • Turbulence
  • Michael C. Gregg, University of Washington
  • Book: Ocean Mixing
  • Online publication: 10 March 2021
  • Chapter DOI: https://doi.org/10.1017/9781316795439.004
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  • Turbulence
  • Michael C. Gregg, University of Washington
  • Book: Ocean Mixing
  • Online publication: 10 March 2021
  • Chapter DOI: https://doi.org/10.1017/9781316795439.004
Available formats
×

Save book to Google Drive

To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Google Drive.

  • Turbulence
  • Michael C. Gregg, University of Washington
  • Book: Ocean Mixing
  • Online publication: 10 March 2021
  • Chapter DOI: https://doi.org/10.1017/9781316795439.004
Available formats
×