A note on optimal transient growth in turbulent channel flows

By G. Pujals, Manuel García-Villalba, C. Cossu, S. Depardon. 2009

211 citations recorded by the source corpus.

Subfields: Computational Mechanics, Fluid Flow and Transfer Processes, Global and Planetary Change

View Paper: https://www.semanticscholar.org/paper/4e83963428e5d8ac953b4320bce11841f236c50d

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Citations in the corpus

The lift-up effect : The linear mechanism behind transition and turbulence in shear flows (2014, background): “…units with an optimal spanwise wavelength λz ∼ 4h, in fair agreement with the spanwise spacing of largescale streaky motions in the outer region; the associated maximum energy growth increases proportionally to a Reynolds number based on the outer units Reout = Uch/νT,max (Pujals et al., 2009).”
Amplification of coherent streaks in the turbulent Couette flow: an input–output analysis at low Reynolds number (2010, methodology): “The low Reynolds number also explains that the Gmax curves do not show any sign of the secondary peak associated with near-wall structures with λ+z ≈ 90 − 100, contrary to what is found by del Álamo & Jiménez (2006) and Pujals et al. (2009) for the plane Poiseuille flow.”
Linear non-normal energy amplification of harmonic and stochastic forcing in the turbulent channel flow (2010, methodology): “The same arguments explain the proportionality to λz of the time of maximum temporal growth of log-layer structures observed by del Álamo & Jiménez (2006) and Pujals et al. (2009).”
Conditions for validity of mean flow stability analysis (2016, unknown): “Non-modal analysis with turbulent mean flows has been introduced by Butler & Farrell (1993), Chernyshenko & Baig (2005), Del Álamo & Jimenez (2006), Cossu, Pujals & Depardon (2009), Pujals et al. (2009) and Moarref & Jovanović (2012).”
Coherent structures in wall-bounded turbulence (2017, methodology): “Del Álamo & Jiménez (2006) repeated the analysis adding to the right-hand side of (6.2)–(6.3) the eddy viscosity required to maintain the mean velocity profile (for the extra terms arising in the equations, see Pujals et al. 2009).”
Colour of turbulence (2016, methodology): “The analysis of the resulting eddy-viscosity-enhanced linearized model reliably predicts the length scales of near-wall structures in turbulent wall-bounded shear flows (Del Álamo & Jiménez 2006; Cossu et al. 2009; Pujals et al. 2009).”
Coherent structures in a swirl injector at Re = 4800 by nonlinear simulations and linear global modes (2016, methodology): “1985, Weisbrot & Wygnanski 1988, Cohen & Wygnanski 1987) and transient growth (Hoyas & Jimenez 2006; Pujals et al. 2009).”