Modal analysis of fluid flows: Applications and outlook
THE field of fluid mechanics involves a range of rich and vibrant problems with complex
dynamics stemming from instabilities, nonlinearities, and turbulence. The analysis of these …
dynamics stemming from instabilities, nonlinearities, and turbulence. The analysis of these …
On the role of actuation for the control of streaky structures in boundary layers
This work deals with the closed-loop control of streaky structures induced by free-stream
turbulence (FST), at the levels of 3.0% and 3.5%, in a zero-pressure-gradient transitional …
turbulence (FST), at the levels of 3.0% and 3.5%, in a zero-pressure-gradient transitional …
Time-resolved phase-lock pressure-sensitive paint measurement of trailing edge noise dynamics
Pressure-sensitive paint (PSP) was applied to the surface of a NACA0012 airfoil to
investigate pressure fluctuations associated with trailing edge (TE) noise under low-velocity …
investigate pressure fluctuations associated with trailing edge (TE) noise under low-velocity …
[HTML][HTML] On the interaction of Tollmien–Schlichting waves with a wall-embedded Helmholtz resonator
T Michelis, C De Koning, M Kotsonis - Physics of Fluids, 2023 - pubs.aip.org
The influence of a wall-embedded Helmholtz resonator on the development and stability of
Tollmien–Schlichting (TS) waves is investigated numerically and experimentally for a range …
Tollmien–Schlichting (TS) waves is investigated numerically and experimentally for a range …
[HTML][HTML] Attenuation of Tollmien–Schlichting waves using resonating surface-embedded phononic crystals
T Michelis, AB Putranto, M Kotsonis - Physics of Fluids, 2023 - pubs.aip.org
A novel method for control of convective boundary layer instabilities using metamaterial
concepts is investigated. Attenuation of Tollmien–Schlichting (TS) waves with surface …
concepts is investigated. Attenuation of Tollmien–Schlichting (TS) waves with surface …
Development and experimental verification of a new computationally efficient parallel narrowband active noise control system
W Chen, C Lu, H Williams, Z Liu, Y Sun - Applied Acoustics, 2022 - Elsevier
The filtered-x least mean square based narrowband active noise control (FX-NANC) system
with a parallel structure is typically used to cancel low-frequency multi-tonal noise. The …
with a parallel structure is typically used to cancel low-frequency multi-tonal noise. The …
Resolvent-based tools for optimal estimation and control via the Wiener–Hopf formalism
The application of control tools to complex flows frequently requires approximations, such as
reduced-order models and/or simplified forcing assumptions, where these may be …
reduced-order models and/or simplified forcing assumptions, where these may be …
A survey on filtered-x least mean square-based active noise control systems with emphasis on reducing computational complexity
X Li, W Chen, Z Liu, C Lu, M Sun - EURASIP Journal on Advances in …, 2023 - Springer
Active noise control (ANC) is gaining ever-increasing attention owing to its powerful ability to
attenuate low-frequency noise. The computational complexity of an ANC system may directly …
attenuate low-frequency noise. The computational complexity of an ANC system may directly …
Experimental control of Tollmien–Schlichting waves using pressure sensors and plasma actuators
This manuscript presents a successful application of the inverse feed-forward control (IFFC)
technique for control of the Tollmien–Schlichting (TS) waves over a wing profile placed in an …
technique for control of the Tollmien–Schlichting (TS) waves over a wing profile placed in an …
Experimental model-based estimation and control of natural Tollmien–Schlichting waves
A compensator strategy based on the linearized Navier–Stokes equations, aimed to
suppress Tollmien–Schlichting waves naturally occurring in low freestream turbulence …
suppress Tollmien–Schlichting waves naturally occurring in low freestream turbulence …