123 citations · 434 across the 14 of their papers we have counts for
15 papers
Parametric mechanism maintaining Couette flow turbulence verified in DNS implies novel control strategies
Brian F. Farrell, Petros J. Ioannou, Marios-Andreas Nikolaidis
The no-slip boundary condition results in a velocity shear forming in fluid flow near a solid surface. This shear flow supports the turbulence characteristic of fluid flow near bou…
Statistical State Dynamics Based Study of the Role of Nonlinearity in the Maintenance of Turbulence in Couette Flow
Brian F. Farrell, Petros J. Ioannou, Marios-Andreas Nikolaidis
While linear non-normality underlies the mechanism of energy transfer from the externally driven flow to the perturbation field that sustains turbulence, nonlinearity is also known…
Vertically Sheared Horizontal Flow-Forming Instability in Stratified Turbulence: Analytical Linear Stability Analysis of Statistical State Dynamics Equilibria
Joseph G Fitzgerald, Brian F Farrell
Vertically banded zonal jets are frequently observed in weakly or non-rotating stratified turbulence, with the quasi-biennial oscillation in the equatorial stratosphere and the oce…
Statistical State Dynamics of Vertically Sheared Horizontal Flows in Two-Dimensional Stratified Turbulence
Joseph G. Fitzgerald, Brian F. Farrell
Simulations of strongly stratified turbulence often exhibit coherent large-scale structures called vertically sheared horizontal flows (VSHFs). VSHFs emerge in both two-dimensional…
Statistical state dynamics based theory for the formation and equilibration of Saturn's north polar jet
Brian F. Farrell, Petros J. Ioannou
Coherent jets with most of the kinetic energy of the flow are common in atmospheric turbulence. In the gaseous planets these jets are maintained by incoherent turbulence excited by…
Statistical state dynamics-based analysis of the physical mechanisms sustaining and regulating turbulence in Couette flow
Brian F. Farrell, Petros J. Ioannou
This paper describes a study of the self-sustaining process in wall-turbulence based on a second order statistical state dynamics (SSD) model of Couette flow. SSD models with this…