Resolvent analysis in unbounded flows: role of free-stream modes
Sign Up to like & getrecommendations! Published in 2020 at "Theoretical and Computational Fluid Dynamics"
DOI: 10.1007/s00162-020-00519-x
Abstract: The problem of finding optimal forcing and response for unbounded base flows, exemplified by the Blasius boundary layer, is assessed by means of a locally parallel resolvent analysis. A new analysis of previous results in… read more here.
Keywords: unbounded flows; stream modes; analysis; resolvent analysis ... See more keywords
Data-driven resolvent analysis
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Fluid Mechanics"
DOI: 10.1017/jfm.2021.337
Abstract: Abstract Resolvent analysis identifies the most responsive forcings and most receptive states of a dynamical system, in an input–output sense, based on its governing equations. Interest in the method has continued to grow during the… read more here.
Keywords: analysis; driven resolvent; resolvent analysis; data driven ... See more keywords
Linear amplification of inertial-wave-driven swirl fluctuations in turbulent swirling pipe flows: a resolvent analysis approach
Sign Up to like & getrecommendations! Published in 2024 at "Journal of Fluid Mechanics"
DOI: 10.1017/jfm.2024.679
Abstract: Abstract This paper investigates the amplification and propagation of swirl fluctuations in turbulent swirling flows using resolvent analysis. Swirl fluctuations have been repeatedly observed in acoustically excited swirl flows and play a significant role in… read more here.
Keywords: swirl fluctuations; turbulent swirling; inertial wave; resolvent analysis ... See more keywords
High-speed microactuation in a supersonic dual-stream jet flow
Sign Up to like & getrecommendations! Published in 2024 at "Journal of Fluid Mechanics"
DOI: 10.1017/jfm.2024.890
Abstract: Abstract Supersonic shear layers experience instabilities that generate significant adverse effects; in complex configurations, these instabilities have global impacts as they foster compounding complications with other independent flow features. We consider the flow near the… read more here.
Keywords: high speed; dual stream; resolvent analysis; flow ... See more keywords