Effect of the Secondary Flow on Karman Vortex Shedding from a Yawed Cylinder

• DOI: 10.1299/jsme1958.29.1124
• Publication Date: 2011-09-20T05:52:14Z
• Authors: Masataka SHlRAKASHI; Atsushi HASEGAWA; Shoichi WAKIYA
• Keywords: Vortex shedding; Generatrix; Kármán vortex street

The Ka^^'ma^^'m vortex shedding from a circular cylinder with yaw angle in uniform flow was investigated using wind tunnel. made the irregular and its frequency low. In addition, an intense secondary along generatrix wake just behind induce by yawing. When pair of parallel plates were placed to free order cut off flow, area between became regular returned value for normal one. more when distance smaller, whereas highest attained 1∼1.6 times diameter. It is concluded that depression yawing attributed cylinder.