Mixing in forced stratified turbulence and its dependence on large-scale forcing

Quantifying mixing and available potential energy in vertically periodic simulations of stratified flows

“…This is consistent with associating mixing with intermittent, large-scale overturns and convectively driven turbulence, as discussed in Howland et al. (2020).…”

“…For more precise details of the forcing in these simulations, we refer the reader to Howland et al. (2020).…”

Prandtl number dependence of stratified turbulence

“…Mixing efficiency, which is often studied in DNS with (e.g. Caulfield & Peltier 2000; Maffioli, Brethouwer & Lindborg 2016; Howland, Taylor & Caulfield 2020), has been found to decrease with increasing (Smyth, Moum & Caldwell 2001; Stretch et al. 2010; Salehipour, Peltier & Mashayek 2015).…”

“…In comparison, the dependence of mixing efficiency on stratification strength and the Richardson number is more complicated (Peltier & Caulfield 2003; Howland et al. 2020).…”

“…Mixing efficiency, which is often studied in DNS with Pr = 1 (e.g. Caulfield & Peltier 2000;Maffioli, Brethouwer & Lindborg 2016;Howland, Taylor & Caulfield 2020), has been found to decrease with increasing Pr (Smyth, Moum & Caldwell 2001;Stretch et al 2010;Salehipour, Peltier & Mashayek 2015). In comparison, the dependence of mixing efficiency on stratification strength and the Richardson number is more complicated (Peltier & Caulfield 2003;Howland et al 2020).…”