迎え角を有する平板翼に生ずる馬てい形渦の挙動 : 第2報,渦度とレイノルズ応力輸送に及ぼす迎え角の影響

抄録

This paper presents the response of vorticity and Reynolds stress transport in the horseshoe vortex at a flat wing/end wall junction. The measurements using the specially designed triple hot-wire anemometer Simultaneously provide three components of mean velocity and six components of Reynolds stress. The horseshoe vortex moves away from the wing/end wall junction by convection and diffusion of the secondary flow. The vortex becomes large because of the diffusion of turbulence. The rotation velocity of the vortex is large at the pressure side of the wing and the vorticity decays due to the stretching mechanism. The location of Reynolds stress, - uv, which takes a negative value does not correspond to the region of the negative mean velocity gradient upstream.