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Barros, D. Borée, J. Noack, B. R. Spohn, A. and Ruiz, T. 2017. Whither Turbulence and Big Data in the 21st Century?.
Barros, Diogo Borée, Jacques Noack, Bernd R. Spohn, Andreas and Ruiz, Tony 2016. Bluff body drag manipulation using pulsed jets and Coanda effect. Journal of Fluid Mechanics, Vol. 805, p. 422.
Gissen, A. N. Vukasinovic, B. Packard, N. O. Brzozowski, D. P. and Glezer, A. 2016. Flow Control of a Cascade Thrust Reverser. Journal of Propulsion and Power, p. 1.
Lehmann, Ralf Akins, David and Little, Jesse 2016. Effects of Nanosecond Pulse Driven Plasma Actuators on Turbulent Shear Layers. AIAA Journal, Vol. 54, Issue. 2, p. 637.
Stankiewicz, Witold Morzyński, Marek Kotecki, Krzysztof and Noack, Bernd R. 2016. On the need of mode interpolation for data-driven Galerkin models of a transient flow around a sphere. Theoretical and Computational Fluid Dynamics,
Woo, George T. K. Glezer, Ari Yorish, Svyatoslav and Crittenden, Thomas M. 2016. Pulsed Actuation Control of Flow Separation on a ROBIN Rotorcraft Fuselage. AIAA Journal, Vol. 54, Issue. 10, p. 3274.
Mushyam, Aditya and Bergada, Josep M 2015. Active Flow Control on Laminar flow over a Backward facing step. Journal of Physics: Conference Series, Vol. 633, p. 012110.
Oxlade, Anthony R. Morrison, Jonathan F. Qubain, Ala and Rigas, Georgios 2015. High-frequency forcing of a turbulent axisymmetric wake. Journal of Fluid Mechanics, Vol. 770, p. 305.
Kapiris, P.G. and Mathioulakis, D.S. 2014. Experimental study of vortical structures in a periodically perturbed flow over a backward-facing step. International Journal of Heat and Fluid Flow, Vol. 47, p. 101.
Vukasinovic, B. Glezer, A. Gordeyev, S. Jumper, E. and Bower, W. W. 2013. Flow control for aero-optics application. Experiments in Fluids, Vol. 54, Issue. 3,
Vukasinovic, Bojan Glezer, Ari Gordeyev, Stanislav Jumper, Eric and Kibens, Valdis 2011. Hybrid Control of a Turret Wake. AIAA Journal, Vol. 49, Issue. 6, p. 1240.
The effects of small-scale dissipative fluidic actuation on the evolution of large- and small-scale motions in a turbulent shear layer downstream of a backward-facing step are investigated experimentally. Actuation is applied by modulation of the vorticity flux into the shear layer at frequencies that are substantially higher than the frequencies that are typically amplified in the near field, and has a profound effect on the evolution of the vortical structures within the layer. Specifically, there is a strong broadband increase in the energy of the small-scale motions and a nearly uniform decrease in the energy of the large-scale motions which correspond to the most amplified unstable modes of the base flow. The near field of the forced shear layer has three distinct domains. The first domain (x/θ0 < 50) is dominated by significant concomitant increases in the production and dissipation of turbulent kinetic energy and in the shear layer cross-stream width. In the second domain (50 < x/θ0 < 300), the streamwise rates of change of these quantities become similar to the corresponding rates in the unforced flow although their magnitudes are substantially different. Finally, in the third domain (x/θ0 > 350) the inviscid instability of the shear layer re-emerges in what might be described as a ‘new’ baseline flow.
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