caa a22 4500 477093159 CHVBK 20180405111520.0 cr unu---uuuuu 170330e19960101xx s 000 0 eng 10.1007/BF00190277 doi (NATIONALLICENCE)springer-10.1007/BF00190277 Huang X. School of Mechanical and Production Engineering Nanyang Technological University, 2263, Singapore aut Feedback control of vortex shedding from a circular cylinder [Elektronische Daten] [X. Huang] This paper presents an experimental study on the suppressing of vortex shedding from a circular cylinder by feedback sound. Experiments were performed in a wind tunnel, and the feedback sound was generated inside the cylinder and locally introduced into the flow through a thin slit on the cylinder surface. In this way, the shear flow nearest to the slit was directly manipulated during the control. The results show that the suppression of vortex shedding can be achieved at Reynolds numbers ranging from 4×103 to 1.3× 104, according to signals from a hot-wire checking throughout the wake and signals from a remote microphone. This local and one-sided feedback, being different from other control techniques, allows a better understanding of the control mechanism, which in this case probably causes a destructive interaction between two shear flows separated from both sides of the cylinder. The technique has been useful to deepen our understanding to the wake instabilities behind the cylinder. Springer-Verlag, 1996 Experiments in Fluids Springer-Verlag 20/3(1996-01-01), 218-224 0723-4864 20:3<218 1996 20 348 https://doi.org/10.1007/BF00190277 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00190277 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Huang X. School of Mechanical and Production Engineering Nanyang Technological University, 2263, Singapore aut NATIONALLICENCE 773 0- Experiments in Fluids Springer-Verlag 20/3(1996-01-01), 218-224 0723-4864 20:3<218 1996 20 348 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer