@inproceedings{65ef0732cf09489ab718624a3e0aa957,

title = "Subgrid-scale modeling of baroclinic vorticity",

abstract = "Baroclinic torque plays an important role in the dynamics of variable-density flows. Large eddy simulations using Favre-filtered resolved-scale velocities mask the explicit dependence of resolved-scale dynamics on subgrid-scale pressure-gradient-density interactions. The effect of subgrid-scale baroclinic torque on resolved scales is implicitly included in the subgrid-scale stress and subgrid-scale scalar fluxes through the resolved-scale vorticity it generates. LES closure models must therefore incorporate this effect in the computations. We explore the physics of subgrid-scale baroclinic torque within the structural framework of the Stretched-Vortex model. Fine-scale simulations of supersonic flows and direct numerical simulations of variable-density turbulence are investigated. Such flows have regions of active baroclinic torque and serve to set up flow configurations to assess the model.",

author = "Sidharth, {G. S.} and Candler, {Graham V} and Dimotakis, {Paul E.}",

year = "2014",

month = jan,

day = "1",

language = "English (US)",

isbn = "9781624102936",

series = "AIAA AVIATION 2014 -7th AIAA Theoretical Fluid Mechanics Conference",

publisher = "American Institute of Aeronautics and Astronautics Inc.",

booktitle = "AIAA AVIATION 2014 -7th AIAA Theoretical Fluid Mechanics Conference",

note = "AIAA AVIATION 2014 -7th AIAA Theoretical Fluid Mechanics Conference 2014 ; Conference date: 16-06-2014 Through 20-06-2014",

}