Visualization study on suppression of vortex shedding from a cylinder |
| |
| Authors: | Shao C P Wang J M Wei Q D |
| |
| Institution: | 1.Institute of Mechanics,Chinese Academy of Sciences,Beijing,China;2.State Key Laboratory of Turbulence and Complex Systems,Peking University,Beijing,China |
| |
| Abstract: | A narrow strip has been introduced as a control element to suppress vortex shedding from a cylinder. The strip is set parallel
to the cylinder axis, and the key parameter of control in this study is the strip position, which is determined by the angle
of attack of the strip and the distance between the strip and the cylinder axis. A circular cylinder and a square cylinder
were tested respectively. Flow visualization and hot-wire measurement were performed in a low turbulence wind tunnel in the
range of Reynolds numberRe=4.0×103≈2.0×104. Test results show that, vortex shedding from both sides of the cylinder can be effectively suppressed if the strip is located
in a certain zone in the wake. The effective zones in circular cylinder wakes at different Reynolds numbers have been found
out, and the mechanism of the suppression has been discussed. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
