Asymptotic stability and transient growth in pulsatile Poiseuille flow through a compliant channel
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Fluid Mechanics"
DOI: 10.1017/jfm.2017.163
Abstract: The time-asymptotic linear stability of pulsatile flow in a channel with compliant walls is studied together with the evaluation of modal transient growth within the pulsation period of the basic flow as well as non-modal… read more here.
Keywords: transient growth; wall; stability; growth ... See more keywords
A novel linear stability analysis method for plane Couette flow considering rarefaction effects
Sign Up to like & getrecommendations! Published in 2023 at "Journal of Fluid Mechanics"
DOI: 10.1017/jfm.2023.230
Abstract: Abstract Following the stability analysis method in classic fluid dynamics, a linear stability equation (LSE) suitable for rarefied flows is derived based on the Bhatnagar–Gross–Krook (BGK) equation. The global method and singular value decomposition method… read more here.
Keywords: analysis method; stability analysis; transient growth; analysis ... See more keywords
Transient growth in streaky unbounded shear flow: a symbiosis of Orr and push-over mechanisms
Sign Up to like & getrecommendations! Published in 2025 at "Journal of Fluid Mechanics"
DOI: 10.1017/jfm.2025.10571
Abstract: Abstract Transient growth mechanisms operating on streaky shear flows are believed important for sustaining near-wall turbulence. Of the three individual mechanisms present – Orr, lift-up and ‘push over’ – Lozano-Duran et al. 2021 (J. Fluid… read more here.
Keywords: push mechanisms; orr push; transient growth; streaky ... See more keywords
Optimization framework for analyzing nonlinear stability due to sparse finite-amplitude perturbations
Sign Up to like & getrecommendations! Published in 2025 at "Physical Review Fluids"
DOI: 10.1103/physrevfluids.10.014401
Abstract: Recent works have established the utility of sparsity-promoting norms for extracting spatially localized instability mechanisms in fluid flows, with possible implications for flow control. However, these prior works have focused on linear dynamics of infinitesimal… read more here.
Keywords: optimization framework; amplitude perturbations; transient growth; framework ... See more keywords
On the transition of transient growth mechanism in Taylor–Dean flow
Sign Up to like & getrecommendations! Published in 2021 at "Modern Physics Letters B"
DOI: 10.1142/s0217984921501852
Abstract: We investigate optimal perturbation and its transient growth characteristics in Taylor–Dean flow theoretically. The parameter β, accounting for the ratio of average pumping velocity induced by azim... read more here.
Keywords: dean flow; transition transient; taylor dean; transient growth ... See more keywords