Control of vortex shedding of circular cylinder in shallow water flow using an attached splitter plate


AKILLI H. , KARAKUŞ C., Akar A. , ŞAHİN B. , Tumen N. F.

JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME, cilt.130, 2008 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 130 Konu: 4
  • Basım Tarihi: 2008
  • Doi Numarası: 10.1115/1.2903813
  • Dergi Adı: JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME

Özet

In the present work, passive control of vortex shedding behind a circular cylinder by splitter plates of various lengths attached on the cylinder base is experimentally investigated in shallow water flow. Detailed measurements of instantaneous and time-averaged flow data of wake flow region at a Reynolds number of Re=6300 were obtained by particle image velocimetry technique. The length of the splitter plate was varied from L/D=0.2 to L/D=2.4 in order to see the effect of the splitter plate length on the flow characteristics. Instantaneous and time-averaged flow data clearly indicate that the length of the splitter plate has a substantial effect on the flow characteristics. The flow characteristics in the wake region of the circular cylinder sharply change up to the splitter plate length of L/D=1.0. Above this plate length, small changes occur in the flow characteristics.