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@article{Vemuri:2018:10.1103/PhysRevFluids.3.053903,
author = {Vemuri, H and Bosworth, R and Morrison, JF and Kerrigan, EC},
doi = {10.1103/PhysRevFluids.3.053903},
journal = {Physical Review Fluids},
title = {Real-time feedback control of 3D Tollmien-Schlichting waves using a dual-slot actuator geometry},
url = {http://dx.doi.org/10.1103/PhysRevFluids.3.053903},
volume = {3},
year = {2018}
}

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TY  - JOUR
AB  - The growth of Tollmien-Schlichting (TS) waves is experimentally attenuated using a single-inputand single-output (SISO) feedback system,  where the TS wave packet is generated by a surfacepoint source in a flat-plate boundary layer.  The SISO system consists of a single wall-mountedhot wire as the sensor and a miniature speaker as the actuator.  The actuation is achieved througha  dual-slot  geometry  to  minimise  the  cavity  near-field  effects  on  the  sensor.   The  experimentalset-up to generate TS waves or wave packets is very similar to that used by Li and Gaster [1].  Theaim is to investigate the performance of the SISO control system in attenuating single-frequency,two-dimensional disturbances generated by these configurations.  The necessary plant models areobtained using system identification,  the controllers are then designed based on the models andimplemented in real-time to test their performance.  Cancellation of the rms streamwise velocityfluctuation of TS waves is evident over a significant domain.
AU  - Vemuri,H
AU  - Bosworth,R
AU  - Morrison,JF
AU  - Kerrigan,EC
DO  - 10.1103/PhysRevFluids.3.053903
PY  - 2018///
SN  - 2469-990X
TI  - Real-time feedback control of 3D Tollmien-Schlichting waves using a dual-slot actuator geometry
T2  - Physical Review Fluids
UR  - http://dx.doi.org/10.1103/PhysRevFluids.3.053903
UR  - http://hdl.handle.net/10044/1/59231
VL  - 3
ER  -

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