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In this paper, the properties of stably stratified turbulence (SST) and turbulent thermal convection are contrasted. A key difference between these flows is the sign of the kinetic energy feed… Click to show full abstract
In this paper, the properties of stably stratified turbulence (SST) and turbulent thermal convection are contrasted. A key difference between these flows is the sign of the kinetic energy feed by buoyancy, $\mathcal{F}_B$. For SST, $\mathcal{F}_B 0$ that leads to an increase of $\Pi_u(k)$ with $k$; this increase however is marginal due to relatively weak buoyancy, hence $E_u(k) \sim k^{-5/3}$, similar to that in hydrodynamic turbulence. This paper also describes the conserved fluxes for the above systems.
Keywords:
stably stratified;
turbulence stably;
turbulence;
contrasting turbulence;
thermal convection
Journal Title: Physica Scripta
Year Published: 2019
Link to full text (if available)
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Journal Title: Physica Scripta
Year Published: 2019
Link to full text (if available)
Share on Social Media: Sign Up to like & get
recommendations!