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 language | English |
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Pages (from-to) | 167-184 |
Number of pages | 18 |
Journal | Boundary-Layer Meteorology |
Volume | 178 (2021) |
Issue number | 2 |
DOIs | |
Publication status | Published - 2020 |
Keywords
- Buoyancy length scale
- Integral length scale
- Outer length scale
- Ozmidov scale
- Stable boundary layer