A study of optimal temporal and spatial disturbance growths is carried out for three-
dimensional viscous incompressible fluid flows with slippery walls. The non-modal temporal …

Structured input–output analysis of stably stratified plane Couette flow Page 1 J. Fluid Mech.
(2022), vol. 948, A10, doi:10.1017/jfm.2022.648 Structured input–output analysis of stably …

Transiently growing non-modal perturbations can play a crucial role in the transition of plane
shear flows in modally stable regimes. In terms of the extent of transient amplification, three …

The modal and nonmodal linear stability of a stably stratified Blasius boundary layer flow,
composed of a velocity and a thermal boundary layer, is investigated. The temporal and …

Triadic resonances in internal wave modes with background shear Page 1 J. Fluid Mech. (2021),
vol. 929, A10, doi:10.1017/jfm.2021.847 Triadic resonances in internal wave modes with …

Laminar shear flows can display large non-modal perturbation growth, often through the lift-
up mechansm, and can undergo subcritical transition to turbulence. The process is three …

We discuss how a variable fluid viscosity affects the nonmodal stability characteristics of the
pressure driven flow between two parallel walls maintained at different temperatures. In this …

Transient growth of perturbations by a linear non-modal evolution is studied here in a stably
stratified bounded Couette flow. The density stratification is linear. Classical inviscid stability …