Parametrizing the Energy Dissipation Rate in Stably Stratified Flows

Sukanta Basu*, Ping He, Adam W. DeMarco

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

9 Citations (Scopus)
92 Downloads (Pure)

Abstract

We use a database of direct numerical simulations to evaluate parametrizations for energy dissipation rate in stably stratified flows. We show that shear-based formulations are more appropriate for stable boundary layers than commonly used buoyancy-based formulations. As part of the derivations, we explore several length scales of turbulence and investigate their dependence on local stability.

Original languageEnglish
Pages (from-to)167-184
Number of pages18
JournalBoundary-Layer Meteorology
Volume178 (2021)
Issue number2
DOIs
Publication statusPublished - 2020

Keywords

  • Buoyancy length scale
  • Integral length scale
  • Outer length scale
  • Ozmidov scale
  • Stable boundary layer

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